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fs/reiserfs/inode.c
92.1 KB
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/* * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README */ |
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#include <linux/time.h> #include <linux/fs.h> #include <linux/reiserfs_fs.h> #include <linux/reiserfs_acl.h> #include <linux/reiserfs_xattr.h> |
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#include <linux/exportfs.h> |
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#include <linux/pagemap.h> #include <linux/highmem.h> |
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#include <linux/slab.h> |
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#include <asm/uaccess.h> #include <asm/unaligned.h> #include <linux/buffer_head.h> #include <linux/mpage.h> #include <linux/writeback.h> #include <linux/quotaops.h> |
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#include <linux/swap.h> |
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int reiserfs_commit_write(struct file *f, struct page *page, unsigned from, unsigned to); |
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void reiserfs_evict_inode(struct inode *inode) |
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{ |
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/* We need blocks for transaction + (user+group) quota update (possibly delete) */ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb); struct reiserfs_transaction_handle th; |
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int depth; |
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int err; |
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if (!inode->i_nlink && !is_bad_inode(inode)) |
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dquot_initialize(inode); |
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|
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truncate_inode_pages(&inode->i_data, 0); |
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if (inode->i_nlink) goto no_delete; |
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depth = reiserfs_write_lock_once(inode->i_sb); |
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/* The = 0 happens when we abort creating a new inode for some reason like lack of space.. */ if (!(inode->i_state & I_NEW) && INODE_PKEY(inode)->k_objectid != 0) { /* also handles bad_inode case */ |
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reiserfs_delete_xattrs(inode); |
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if (journal_begin(&th, inode->i_sb, jbegin_count)) |
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goto out; |
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reiserfs_update_inode_transaction(inode); |
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reiserfs_discard_prealloc(&th, inode); |
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err = reiserfs_delete_object(&th, inode); |
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/* Do quota update inside a transaction for journaled quotas. We must do that * after delete_object so that quota updates go into the same transaction as * stat data deletion */ |
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if (!err) |
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dquot_free_inode(inode); |
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if (journal_end(&th, inode->i_sb, jbegin_count)) |
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goto out; |
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/* check return value from reiserfs_delete_object after * ending the transaction */ if (err) goto out; |
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/* all items of file are deleted, so we can remove "save" link */ remove_save_link(inode, 0 /* not truncate */ ); /* we can't do anything * about an error here */ } else { /* no object items are in the tree */ ; } out: |
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end_writeback(inode); /* note this must go after the journal_end to prevent deadlock */ dquot_drop(inode); |
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inode->i_blocks = 0; |
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reiserfs_write_unlock_once(inode->i_sb, depth); |
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return; |
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no_delete: end_writeback(inode); dquot_drop(inode); |
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} |
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static void _make_cpu_key(struct cpu_key *key, int version, __u32 dirid, __u32 objectid, loff_t offset, int type, int length) |
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{ |
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key->version = version; |
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key->on_disk_key.k_dir_id = dirid; key->on_disk_key.k_objectid = objectid; set_cpu_key_k_offset(key, offset); set_cpu_key_k_type(key, type); key->key_length = length; |
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} |
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/* take base of inode_key (it comes from inode always) (dirid, objectid) and version from an inode, set offset and type of key */ |
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void make_cpu_key(struct cpu_key *key, struct inode *inode, loff_t offset, int type, int length) |
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{ |
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_make_cpu_key(key, get_inode_item_key_version(inode), le32_to_cpu(INODE_PKEY(inode)->k_dir_id), le32_to_cpu(INODE_PKEY(inode)->k_objectid), offset, type, length); |
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} |
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// // when key is 0, do not set version and short key // |
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inline void make_le_item_head(struct item_head *ih, const struct cpu_key *key, int version, loff_t offset, int type, int length, int entry_count /*or ih_free_space */ ) |
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{ |
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if (key) { ih->ih_key.k_dir_id = cpu_to_le32(key->on_disk_key.k_dir_id); ih->ih_key.k_objectid = cpu_to_le32(key->on_disk_key.k_objectid); } put_ih_version(ih, version); set_le_ih_k_offset(ih, offset); set_le_ih_k_type(ih, type); put_ih_item_len(ih, length); /* set_ih_free_space (ih, 0); */ // for directory items it is entry count, for directs and stat // datas - 0xffff, for indirects - 0 put_ih_entry_count(ih, entry_count); |
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} // // FIXME: we might cache recently accessed indirect item // Ugh. Not too eager for that.... // I cut the code until such time as I see a convincing argument (benchmark). // I don't want a bloated inode struct..., and I don't like code complexity.... /* cutting the code is fine, since it really isn't in use yet and is easy ** to add back in. But, Vladimir has a really good idea here. Think ** about what happens for reading a file. For each page, ** The VFS layer calls reiserfs_readpage, who searches the tree to find ** an indirect item. This indirect item has X number of pointers, where ** X is a big number if we've done the block allocation right. But, ** we only use one or two of these pointers during each call to readpage, ** needlessly researching again later on. ** ** The size of the cache could be dynamic based on the size of the file. ** ** I'd also like to see us cache the location the stat data item, since ** we are needlessly researching for that frequently. ** ** --chris */ /* If this page has a file tail in it, and ** it was read in by get_block_create_0, the page data is valid, ** but tail is still sitting in a direct item, and we can't write to ** it. So, look through this page, and check all the mapped buffers ** to make sure they have valid block numbers. Any that don't need |
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** to be unmapped, so that __block_write_begin will correctly call |
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** reiserfs_get_block to convert the tail into an unformatted node */ |
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static inline void fix_tail_page_for_writing(struct page *page) { struct buffer_head *head, *next, *bh; if (page && page_has_buffers(page)) { head = page_buffers(page); bh = head; do { next = bh->b_this_page; if (buffer_mapped(bh) && bh->b_blocknr == 0) { reiserfs_unmap_buffer(bh); } bh = next; } while (bh != head); } |
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} /* reiserfs_get_block does not need to allocate a block only if it has been done already or non-hole position has been found in the indirect item */ |
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static inline int allocation_needed(int retval, b_blocknr_t allocated, struct item_head *ih, __le32 * item, int pos_in_item) |
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{ |
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if (allocated) return 0; if (retval == POSITION_FOUND && is_indirect_le_ih(ih) && get_block_num(item, pos_in_item)) return 0; return 1; |
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} |
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static inline int indirect_item_found(int retval, struct item_head *ih) |
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{ |
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return (retval == POSITION_FOUND) && is_indirect_le_ih(ih); |
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} |
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static inline void set_block_dev_mapped(struct buffer_head *bh, b_blocknr_t block, struct inode *inode) |
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{ map_bh(bh, inode->i_sb, block); } |
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// // files which were created in the earlier version can not be longer, // than 2 gb // |
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static int file_capable(struct inode *inode, sector_t block) |
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{ |
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if (get_inode_item_key_version(inode) != KEY_FORMAT_3_5 || // it is new file. block < (1 << (31 - inode->i_sb->s_blocksize_bits))) // old file, but 'block' is inside of 2gb return 1; |
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return 0; |
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} |
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static int restart_transaction(struct reiserfs_transaction_handle *th, struct inode *inode, struct treepath *path) |
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{ struct super_block *s = th->t_super; int len = th->t_blocks_allocated; int err; BUG_ON(!th->t_trans_id); BUG_ON(!th->t_refcount); |
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pathrelse(path); |
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/* we cannot restart while nested */ if (th->t_refcount > 1) { return 0; } |
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reiserfs_update_sd(th, inode); err = journal_end(th, s, len); if (!err) { err = journal_begin(th, s, JOURNAL_PER_BALANCE_CNT * 6); if (!err) reiserfs_update_inode_transaction(inode); } return err; |
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} // it is called by get_block when create == 0. Returns block number // for 'block'-th logical block of file. When it hits direct item it // returns 0 (being called from bmap) or read direct item into piece // of page (bh_result) // Please improve the english/clarity in the comment above, as it is // hard to understand. |
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static int _get_block_create_0(struct inode *inode, sector_t block, |
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struct buffer_head *bh_result, int args) |
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{ |
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INITIALIZE_PATH(path); struct cpu_key key; struct buffer_head *bh; struct item_head *ih, tmp_ih; |
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b_blocknr_t blocknr; |
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char *p = NULL; int chars; int ret; int result; int done = 0; unsigned long offset; // prepare the key to look for the 'block'-th block of file make_cpu_key(&key, inode, (loff_t) block * inode->i_sb->s_blocksize + 1, TYPE_ANY, 3); |
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result = search_for_position_by_key(inode->i_sb, &key, &path); if (result != POSITION_FOUND) { pathrelse(&path); if (p) kunmap(bh_result->b_page); if (result == IO_ERROR) return -EIO; // We do not return -ENOENT if there is a hole but page is uptodate, because it means // That there is some MMAPED data associated with it that is yet to be written to disk. if ((args & GET_BLOCK_NO_HOLE) && !PageUptodate(bh_result->b_page)) { return -ENOENT; } return 0; } // bh = get_last_bh(&path); ih = get_ih(&path); if (is_indirect_le_ih(ih)) { __le32 *ind_item = (__le32 *) B_I_PITEM(bh, ih); /* FIXME: here we could cache indirect item or part of it in the inode to avoid search_by_key in case of subsequent access to file */ blocknr = get_block_num(ind_item, path.pos_in_item); ret = 0; if (blocknr) { map_bh(bh_result, inode->i_sb, blocknr); if (path.pos_in_item == ((ih_item_len(ih) / UNFM_P_SIZE) - 1)) { set_buffer_boundary(bh_result); } } else // We do not return -ENOENT if there is a hole but page is uptodate, because it means // That there is some MMAPED data associated with it that is yet to be written to disk. if ((args & GET_BLOCK_NO_HOLE) && !PageUptodate(bh_result->b_page)) { ret = -ENOENT; } pathrelse(&path); if (p) kunmap(bh_result->b_page); return ret; } // requested data are in direct item(s) if (!(args & GET_BLOCK_READ_DIRECT)) { // we are called by bmap. FIXME: we can not map block of file // when it is stored in direct item(s) pathrelse(&path); if (p) kunmap(bh_result->b_page); return -ENOENT; } /* if we've got a direct item, and the buffer or page was uptodate, ** we don't want to pull data off disk again. skip to the ** end, where we map the buffer and return */ if (buffer_uptodate(bh_result)) { goto finished; } else /* ** grab_tail_page can trigger calls to reiserfs_get_block on up to date ** pages without any buffers. If the page is up to date, we don't want ** read old data off disk. Set the up to date bit on the buffer instead ** and jump to the end */ if (!bh_result->b_page || PageUptodate(bh_result->b_page)) { |
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set_buffer_uptodate(bh_result); |
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goto finished; } // read file tail into part of page offset = (cpu_key_k_offset(&key) - 1) & (PAGE_CACHE_SIZE - 1); |
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copy_item_head(&tmp_ih, ih); /* we only want to kmap if we are reading the tail into the page. ** this is not the common case, so we don't kmap until we are ** sure we need to. But, this means the item might move if ** kmap schedules */ |
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if (!p) |
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p = (char *)kmap(bh_result->b_page); |
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p += offset; memset(p, 0, inode->i_sb->s_blocksize); do { if (!is_direct_le_ih(ih)) { BUG(); } /* make sure we don't read more bytes than actually exist in ** the file. This can happen in odd cases where i_size isn't |
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** correct, and when direct item padding results in a few |
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** extra bytes at the end of the direct item */ if ((le_ih_k_offset(ih) + path.pos_in_item) > inode->i_size) break; if ((le_ih_k_offset(ih) - 1 + ih_item_len(ih)) > inode->i_size) { chars = inode->i_size - (le_ih_k_offset(ih) - 1) - path.pos_in_item; done = 1; } else { chars = ih_item_len(ih) - path.pos_in_item; } memcpy(p, B_I_PITEM(bh, ih) + path.pos_in_item, chars); if (done) break; p += chars; if (PATH_LAST_POSITION(&path) != (B_NR_ITEMS(bh) - 1)) // we done, if read direct item is not the last item of // node FIXME: we could try to check right delimiting key // to see whether direct item continues in the right // neighbor or rely on i_size break; // update key to look for the next piece set_cpu_key_k_offset(&key, cpu_key_k_offset(&key) + chars); result = search_for_position_by_key(inode->i_sb, &key, &path); if (result != POSITION_FOUND) // i/o error most likely break; bh = get_last_bh(&path); ih = get_ih(&path); } while (1); flush_dcache_page(bh_result->b_page); kunmap(bh_result->b_page); finished: pathrelse(&path); if (result == IO_ERROR) return -EIO; |
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/* this buffer has valid data, but isn't valid for io. mapping it to * block #0 tells the rest of reiserfs it just has a tail in it */ map_bh(bh_result, inode->i_sb, 0); set_buffer_uptodate(bh_result); return 0; } |
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// this is called to create file map. So, _get_block_create_0 will not // read direct item |
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static int reiserfs_bmap(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create) |
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{ |
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if (!file_capable(inode, block)) return -EFBIG; reiserfs_write_lock(inode->i_sb); /* do not read the direct item */ _get_block_create_0(inode, block, bh_result, 0); reiserfs_write_unlock(inode->i_sb); return 0; |
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} /* special version of get_block that is only used by grab_tail_page right |
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** now. It is sent to __block_write_begin, and when you try to get a |
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** block past the end of the file (or a block from a hole) it returns |
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** -ENOENT instead of a valid buffer. __block_write_begin expects to |
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** be able to do i/o on the buffers returned, unless an error value ** is also returned. |
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** |
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** So, this allows __block_write_begin to be used for reading a single block |
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** in a page. Where it does not produce a valid page for holes, or past the ** end of the file. This turns out to be exactly what we need for reading ** tails for conversion. ** ** The point of the wrapper is forcing a certain value for create, even |
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** though the VFS layer is calling this function with create==1. If you ** don't want to send create == GET_BLOCK_NO_HOLE to reiserfs_get_block, |
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** don't use this function. */ |
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static int reiserfs_get_block_create_0(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create) { return reiserfs_get_block(inode, block, bh_result, GET_BLOCK_NO_HOLE); |
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} /* This is special helper for reiserfs_get_block in case we are executing direct_IO request. */ static int reiserfs_get_blocks_direct_io(struct inode *inode, sector_t iblock, |
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struct buffer_head *bh_result, int create) { |
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int ret; bh_result->b_page = NULL; |
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/* We set the b_size before reiserfs_get_block call since it is referenced in convert_tail_for_hole() that may be called from reiserfs_get_block() */ bh_result->b_size = (1 << inode->i_blkbits); ret = reiserfs_get_block(inode, iblock, bh_result, create | GET_BLOCK_NO_DANGLE); if (ret) goto out; /* don't allow direct io onto tail pages */ if (buffer_mapped(bh_result) && bh_result->b_blocknr == 0) { /* make sure future calls to the direct io funcs for this offset ** in the file fail by unmapping the buffer */ clear_buffer_mapped(bh_result); ret = -EINVAL; } /* Possible unpacked tail. Flush the data before pages have disappeared */ if (REISERFS_I(inode)->i_flags & i_pack_on_close_mask) { int err; |
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reiserfs_write_lock(inode->i_sb); |
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err = reiserfs_commit_for_inode(inode); REISERFS_I(inode)->i_flags &= ~i_pack_on_close_mask; |
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reiserfs_write_unlock(inode->i_sb); |
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if (err < 0) ret = err; } out: return ret; } |
1da177e4c Linux-2.6.12-rc2 |
493 494 495 496 497 498 499 500 501 502 503 |
/* ** helper function for when reiserfs_get_block is called for a hole ** but the file tail is still in a direct item ** bh_result is the buffer head for the hole ** tail_offset is the offset of the start of the tail in the file ** ** This calls prepare_write, which will start a new transaction ** you should not be in a transaction, or have any paths held when you ** call this. */ |
bd4c625c0 reiserfs: run scr... |
504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 |
static int convert_tail_for_hole(struct inode *inode, struct buffer_head *bh_result, loff_t tail_offset) { unsigned long index; unsigned long tail_end; unsigned long tail_start; struct page *tail_page; struct page *hole_page = bh_result->b_page; int retval = 0; if ((tail_offset & (bh_result->b_size - 1)) != 1) return -EIO; /* always try to read until the end of the block */ tail_start = tail_offset & (PAGE_CACHE_SIZE - 1); tail_end = (tail_start | (bh_result->b_size - 1)) + 1; index = tail_offset >> PAGE_CACHE_SHIFT; /* hole_page can be zero in case of direct_io, we are sure that we cannot get here if we write with O_DIRECT into tail page */ if (!hole_page || index != hole_page->index) { tail_page = grab_cache_page(inode->i_mapping, index); retval = -ENOMEM; if (!tail_page) { goto out; } } else { tail_page = hole_page; } /* we don't have to make sure the conversion did not happen while ** we were locking the page because anyone that could convert |
1b1dcc1b5 [PATCH] mutex sub... |
538 |
** must first take i_mutex. |
bd4c625c0 reiserfs: run scr... |
539 540 541 |
** ** We must fix the tail page for writing because it might have buffers ** that are mapped, but have a block number of 0. This indicates tail |
ebdec241d fs: kill block_pr... |
542 543 |
** data that has been read directly into the page, and ** __block_write_begin won't trigger a get_block in this case. |
bd4c625c0 reiserfs: run scr... |
544 545 |
*/ fix_tail_page_for_writing(tail_page); |
ebdec241d fs: kill block_pr... |
546 547 |
retval = __reiserfs_write_begin(tail_page, tail_start, tail_end - tail_start); |
bd4c625c0 reiserfs: run scr... |
548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 |
if (retval) goto unlock; /* tail conversion might change the data in the page */ flush_dcache_page(tail_page); retval = reiserfs_commit_write(NULL, tail_page, tail_start, tail_end); unlock: if (tail_page != hole_page) { unlock_page(tail_page); page_cache_release(tail_page); } out: return retval; |
1da177e4c Linux-2.6.12-rc2 |
563 564 565 |
} static inline int _allocate_block(struct reiserfs_transaction_handle *th, |
3ee166704 reiserfs: fix usa... |
566 |
sector_t block, |
bd4c625c0 reiserfs: run scr... |
567 568 |
struct inode *inode, b_blocknr_t * allocated_block_nr, |
fec6d055d [PATCH] struct pa... |
569 |
struct treepath *path, int flags) |
bd4c625c0 reiserfs: run scr... |
570 571 |
{ BUG_ON(!th->t_trans_id); |
1da177e4c Linux-2.6.12-rc2 |
572 |
#ifdef REISERFS_PREALLOCATE |
1b1dcc1b5 [PATCH] mutex sub... |
573 |
if (!(flags & GET_BLOCK_NO_IMUX)) { |
bd4c625c0 reiserfs: run scr... |
574 575 576 |
return reiserfs_new_unf_blocknrs2(th, inode, allocated_block_nr, path, block); } |
1da177e4c Linux-2.6.12-rc2 |
577 |
#endif |
bd4c625c0 reiserfs: run scr... |
578 579 |
return reiserfs_new_unf_blocknrs(th, inode, allocated_block_nr, path, block); |
1da177e4c Linux-2.6.12-rc2 |
580 |
} |
bd4c625c0 reiserfs: run scr... |
581 582 |
int reiserfs_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create) |
1da177e4c Linux-2.6.12-rc2 |
583 |
{ |
bd4c625c0 reiserfs: run scr... |
584 585 586 587 588 589 590 591 592 593 |
int repeat, retval = 0; b_blocknr_t allocated_block_nr = 0; // b_blocknr_t is (unsigned) 32 bit int INITIALIZE_PATH(path); int pos_in_item; struct cpu_key key; struct buffer_head *bh, *unbh = NULL; struct item_head *ih, tmp_ih; __le32 *item; int done; int fs_gen; |
26931309a kill-the-bkl/reis... |
594 |
int lock_depth; |
bd4c625c0 reiserfs: run scr... |
595 |
struct reiserfs_transaction_handle *th = NULL; |
0222e6571 reiserfs: strip t... |
596 |
/* space reserved in transaction batch: |
bd4c625c0 reiserfs: run scr... |
597 598 599 600 601 602 603 604 605 606 607 608 |
. 3 balancings in direct->indirect conversion . 1 block involved into reiserfs_update_sd() XXX in practically impossible worst case direct2indirect() can incur (much) more than 3 balancings. quota update for user, group */ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb); int version; int dangle = 1; loff_t new_offset = (((loff_t) block) << inode->i_sb->s_blocksize_bits) + 1; |
26931309a kill-the-bkl/reis... |
609 |
lock_depth = reiserfs_write_lock_once(inode->i_sb); |
bd4c625c0 reiserfs: run scr... |
610 |
version = get_inode_item_key_version(inode); |
1da177e4c Linux-2.6.12-rc2 |
611 |
|
bd4c625c0 reiserfs: run scr... |
612 |
if (!file_capable(inode, block)) { |
26931309a kill-the-bkl/reis... |
613 |
reiserfs_write_unlock_once(inode->i_sb, lock_depth); |
bd4c625c0 reiserfs: run scr... |
614 615 616 617 618 619 620 621 622 623 624 |
return -EFBIG; } /* if !create, we aren't changing the FS, so we don't need to ** log anything, so we don't need to start a transaction */ if (!(create & GET_BLOCK_CREATE)) { int ret; /* find number of block-th logical block of the file */ ret = _get_block_create_0(inode, block, bh_result, create | GET_BLOCK_READ_DIRECT); |
26931309a kill-the-bkl/reis... |
625 |
reiserfs_write_unlock_once(inode->i_sb, lock_depth); |
bd4c625c0 reiserfs: run scr... |
626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 |
return ret; } /* * if we're already in a transaction, make sure to close * any new transactions we start in this func */ if ((create & GET_BLOCK_NO_DANGLE) || reiserfs_transaction_running(inode->i_sb)) dangle = 0; /* If file is of such a size, that it might have a tail and tails are enabled ** we should mark it as possibly needing tail packing on close */ if ((have_large_tails(inode->i_sb) && inode->i_size < i_block_size(inode) * 4) || (have_small_tails(inode->i_sb) && inode->i_size < i_block_size(inode))) REISERFS_I(inode)->i_flags |= i_pack_on_close_mask; /* set the key of the first byte in the 'block'-th block of file */ make_cpu_key(&key, inode, new_offset, TYPE_ANY, 3 /*key length */ ); if ((new_offset + inode->i_sb->s_blocksize - 1) > inode->i_size) { start_trans: th = reiserfs_persistent_transaction(inode->i_sb, jbegin_count); if (!th) { retval = -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
652 653 |
goto failure; } |
bd4c625c0 reiserfs: run scr... |
654 655 656 |
reiserfs_update_inode_transaction(inode); } research: |
1da177e4c Linux-2.6.12-rc2 |
657 |
|
bd4c625c0 reiserfs: run scr... |
658 |
retval = search_for_position_by_key(inode->i_sb, &key, &path); |
1da177e4c Linux-2.6.12-rc2 |
659 |
if (retval == IO_ERROR) { |
bd4c625c0 reiserfs: run scr... |
660 661 662 663 664 665 666 |
retval = -EIO; goto failure; } bh = get_last_bh(&path); ih = get_ih(&path); item = get_item(&path); |
1da177e4c Linux-2.6.12-rc2 |
667 |
pos_in_item = path.pos_in_item; |
1da177e4c Linux-2.6.12-rc2 |
668 |
|
bd4c625c0 reiserfs: run scr... |
669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 |
fs_gen = get_generation(inode->i_sb); copy_item_head(&tmp_ih, ih); if (allocation_needed (retval, allocated_block_nr, ih, item, pos_in_item)) { /* we have to allocate block for the unformatted node */ if (!th) { pathrelse(&path); goto start_trans; } repeat = _allocate_block(th, block, inode, &allocated_block_nr, &path, create); if (repeat == NO_DISK_SPACE || repeat == QUOTA_EXCEEDED) { /* restart the transaction to give the journal a chance to free ** some blocks. releases the path, so we have to go back to ** research if we succeed on the second try */ SB_JOURNAL(inode->i_sb)->j_next_async_flush = 1; retval = restart_transaction(th, inode, &path); if (retval) goto failure; repeat = _allocate_block(th, block, inode, &allocated_block_nr, NULL, create); if (repeat != NO_DISK_SPACE && repeat != QUOTA_EXCEEDED) { goto research; } if (repeat == QUOTA_EXCEEDED) retval = -EDQUOT; else retval = -ENOSPC; goto failure; } if (fs_changed(fs_gen, inode->i_sb) && item_moved(&tmp_ih, &path)) { goto research; } } if (indirect_item_found(retval, ih)) { b_blocknr_t unfm_ptr; /* 'block'-th block is in the file already (there is corresponding cell in some indirect item). But it may be zero unformatted node pointer (hole) */ unfm_ptr = get_block_num(item, pos_in_item); if (unfm_ptr == 0) { /* use allocated block to plug the hole */ reiserfs_prepare_for_journal(inode->i_sb, bh, 1); if (fs_changed(fs_gen, inode->i_sb) && item_moved(&tmp_ih, &path)) { reiserfs_restore_prepared_buffer(inode->i_sb, bh); goto research; } set_buffer_new(bh_result); if (buffer_dirty(bh_result) && reiserfs_data_ordered(inode->i_sb)) reiserfs_add_ordered_list(inode, bh_result); put_block_num(item, pos_in_item, allocated_block_nr); unfm_ptr = allocated_block_nr; journal_mark_dirty(th, inode->i_sb, bh); reiserfs_update_sd(th, inode); } set_block_dev_mapped(bh_result, unfm_ptr, inode); pathrelse(&path); retval = 0; if (!dangle && th) retval = reiserfs_end_persistent_transaction(th); |
26931309a kill-the-bkl/reis... |
742 |
reiserfs_write_unlock_once(inode->i_sb, lock_depth); |
bd4c625c0 reiserfs: run scr... |
743 744 |
/* the item was found, so new blocks were not added to the file |
0222e6571 reiserfs: strip t... |
745 |
** there is no need to make sure the inode is updated with this |
bd4c625c0 reiserfs: run scr... |
746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 |
** transaction */ return retval; } if (!th) { pathrelse(&path); goto start_trans; } /* desired position is not found or is in the direct item. We have to append file with holes up to 'block'-th block converting direct items to indirect one if necessary */ done = 0; do { if (is_statdata_le_ih(ih)) { __le32 unp = 0; struct cpu_key tmp_key; /* indirect item has to be inserted */ make_le_item_head(&tmp_ih, &key, version, 1, TYPE_INDIRECT, UNFM_P_SIZE, 0 /* free_space */ ); if (cpu_key_k_offset(&key) == 1) { /* we are going to add 'block'-th block to the file. Use allocated block for that */ unp = cpu_to_le32(allocated_block_nr); set_block_dev_mapped(bh_result, allocated_block_nr, inode); set_buffer_new(bh_result); done = 1; } tmp_key = key; // ;) set_cpu_key_k_offset(&tmp_key, 1); PATH_LAST_POSITION(&path)++; retval = reiserfs_insert_item(th, &path, &tmp_key, &tmp_ih, inode, (char *)&unp); if (retval) { reiserfs_free_block(th, inode, allocated_block_nr, 1); goto failure; // retval == -ENOSPC, -EDQUOT or -EIO or -EEXIST } //mark_tail_converted (inode); } else if (is_direct_le_ih(ih)) { /* direct item has to be converted */ loff_t tail_offset; tail_offset = ((le_ih_k_offset(ih) - 1) & ~(inode->i_sb->s_blocksize - 1)) + 1; if (tail_offset == cpu_key_k_offset(&key)) { /* direct item we just found fits into block we have to map. Convert it into unformatted node: use bh_result for the conversion */ set_block_dev_mapped(bh_result, allocated_block_nr, inode); unbh = bh_result; done = 1; } else { /* we have to padd file tail stored in direct item(s) up to block size and convert it to unformatted node. FIXME: this should also get into page cache */ pathrelse(&path); /* * ugly, but we can only end the transaction if * we aren't nested */ BUG_ON(!th->t_refcount); if (th->t_refcount == 1) { retval = reiserfs_end_persistent_transaction (th); th = NULL; if (retval) goto failure; } retval = convert_tail_for_hole(inode, bh_result, tail_offset); if (retval) { if (retval != -ENOSPC) |
0030b6457 reiserfs: use rei... |
832 833 834 835 836 837 |
reiserfs_error(inode->i_sb, "clm-6004", "convert tail failed " "inode %lu, error %d", inode->i_ino, retval); |
bd4c625c0 reiserfs: run scr... |
838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 |
if (allocated_block_nr) { /* the bitmap, the super, and the stat data == 3 */ if (!th) th = reiserfs_persistent_transaction(inode->i_sb, 3); if (th) reiserfs_free_block(th, inode, allocated_block_nr, 1); } goto failure; } goto research; } retval = direct2indirect(th, inode, &path, unbh, tail_offset); if (retval) { reiserfs_unmap_buffer(unbh); reiserfs_free_block(th, inode, allocated_block_nr, 1); goto failure; } /* it is important the set_buffer_uptodate is done after ** the direct2indirect. The buffer might contain valid ** data newer than the data on disk (read by readpage, changed, ** and then sent here by writepage). direct2indirect needs ** to know if unbh was already up to date, so it can decide ** if the data in unbh needs to be replaced with data from ** the disk */ set_buffer_uptodate(unbh); /* unbh->b_page == NULL in case of DIRECT_IO request, this means buffer will disappear shortly, so it should not be added to */ if (unbh->b_page) { /* we've converted the tail, so we must ** flush unbh before the transaction commits */ reiserfs_add_tail_list(inode, unbh); /* mark it dirty now to prevent commit_write from adding ** this buffer to the inode's dirty buffer list */ /* * AKPM: changed __mark_buffer_dirty to mark_buffer_dirty(). * It's still atomic, but it sets the page dirty too, * which makes it eligible for writeback at any time by the * VM (which was also the case with __mark_buffer_dirty()) */ mark_buffer_dirty(unbh); } } else { /* append indirect item with holes if needed, when appending pointer to 'block'-th block use block, which is already allocated */ struct cpu_key tmp_key; unp_t unf_single = 0; // We use this in case we need to allocate only // one block which is a fastpath unp_t *un; __u64 max_to_insert = MAX_ITEM_LEN(inode->i_sb->s_blocksize) / UNFM_P_SIZE; __u64 blocks_needed; RFALSE(pos_in_item != ih_item_len(ih) / UNFM_P_SIZE, "vs-804: invalid position for append"); /* indirect item has to be appended, set up key of that position */ make_cpu_key(&tmp_key, inode, le_key_k_offset(version, &(ih->ih_key)) + op_bytes_number(ih, inode->i_sb->s_blocksize), //pos_in_item * inode->i_sb->s_blocksize, TYPE_INDIRECT, 3); // key type is unimportant |
c499ec24c [PATCH] reiserfs:... |
914 915 |
RFALSE(cpu_key_k_offset(&tmp_key) > cpu_key_k_offset(&key), "green-805: invalid offset"); |
bd4c625c0 reiserfs: run scr... |
916 917 918 919 920 |
blocks_needed = 1 + ((cpu_key_k_offset(&key) - cpu_key_k_offset(&tmp_key)) >> inode->i_sb-> s_blocksize_bits); |
bd4c625c0 reiserfs: run scr... |
921 922 923 924 |
if (blocks_needed == 1) { un = &unf_single; } else { |
1d2c6cfd4 kill-the-bkl/reis... |
925 |
un = kzalloc(min(blocks_needed, max_to_insert) * UNFM_P_SIZE, GFP_NOFS); |
bd4c625c0 reiserfs: run scr... |
926 927 928 929 |
if (!un) { un = &unf_single; blocks_needed = 1; max_to_insert = 0; |
01afb2134 [PATCH] reiser: r... |
930 |
} |
bd4c625c0 reiserfs: run scr... |
931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 |
} if (blocks_needed <= max_to_insert) { /* we are going to add target block to the file. Use allocated block for that */ un[blocks_needed - 1] = cpu_to_le32(allocated_block_nr); set_block_dev_mapped(bh_result, allocated_block_nr, inode); set_buffer_new(bh_result); done = 1; } else { /* paste hole to the indirect item */ /* If kmalloc failed, max_to_insert becomes zero and it means we only have space for one block */ blocks_needed = max_to_insert ? max_to_insert : 1; } retval = reiserfs_paste_into_item(th, &path, &tmp_key, inode, (char *)un, UNFM_P_SIZE * blocks_needed); if (blocks_needed != 1) kfree(un); if (retval) { reiserfs_free_block(th, inode, allocated_block_nr, 1); goto failure; } if (!done) { /* We need to mark new file size in case this function will be interrupted/aborted later on. And we may do this only for holes. */ inode->i_size += inode->i_sb->s_blocksize * blocks_needed; } } |
1da177e4c Linux-2.6.12-rc2 |
970 |
|
bd4c625c0 reiserfs: run scr... |
971 972 |
if (done == 1) break; |
1da177e4c Linux-2.6.12-rc2 |
973 |
|
bd4c625c0 reiserfs: run scr... |
974 975 |
/* this loop could log more blocks than we had originally asked ** for. So, we have to allow the transaction to end if it is |
0222e6571 reiserfs: strip t... |
976 |
** too big or too full. Update the inode so things are |
bd4c625c0 reiserfs: run scr... |
977 978 979 980 981 982 983 984 985 986 |
** consistent if we crash before the function returns ** ** release the path so that anybody waiting on the path before ** ending their transaction will be able to continue. */ if (journal_transaction_should_end(th, th->t_blocks_allocated)) { retval = restart_transaction(th, inode, &path); if (retval) goto failure; } |
8ebc42323 reiserfs: kill-th... |
987 988 989 990 |
/* * inserting indirect pointers for a hole can take a * long time. reschedule if needed and also release the write * lock for others. |
bd4c625c0 reiserfs: run scr... |
991 |
*/ |
26931309a kill-the-bkl/reis... |
992 993 994 995 996 |
if (need_resched()) { reiserfs_write_unlock_once(inode->i_sb, lock_depth); schedule(); lock_depth = reiserfs_write_lock_once(inode->i_sb); } |
1da177e4c Linux-2.6.12-rc2 |
997 |
|
bd4c625c0 reiserfs: run scr... |
998 999 1000 1001 1002 1003 |
retval = search_for_position_by_key(inode->i_sb, &key, &path); if (retval == IO_ERROR) { retval = -EIO; goto failure; } if (retval == POSITION_FOUND) { |
45b03d5e8 reiserfs: rework ... |
1004 |
reiserfs_warning(inode->i_sb, "vs-825", |
bd4c625c0 reiserfs: run scr... |
1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 |
"%K should not be found", &key); retval = -EEXIST; if (allocated_block_nr) reiserfs_free_block(th, inode, allocated_block_nr, 1); pathrelse(&path); goto failure; } bh = get_last_bh(&path); ih = get_ih(&path); item = get_item(&path); pos_in_item = path.pos_in_item; } while (1); retval = 0; failure: if (th && (!dangle || (retval && !th->t_trans_id))) { int err; if (th->t_trans_id) reiserfs_update_sd(th, inode); err = reiserfs_end_persistent_transaction(th); if (err) retval = err; } |
26931309a kill-the-bkl/reis... |
1030 |
reiserfs_write_unlock_once(inode->i_sb, lock_depth); |
bd4c625c0 reiserfs: run scr... |
1031 1032 |
reiserfs_check_path(&path); return retval; |
1da177e4c Linux-2.6.12-rc2 |
1033 1034 1035 1036 |
} static int reiserfs_readpages(struct file *file, struct address_space *mapping, |
bd4c625c0 reiserfs: run scr... |
1037 |
struct list_head *pages, unsigned nr_pages) |
1da177e4c Linux-2.6.12-rc2 |
1038 |
{ |
bd4c625c0 reiserfs: run scr... |
1039 |
return mpage_readpages(mapping, pages, nr_pages, reiserfs_get_block); |
1da177e4c Linux-2.6.12-rc2 |
1040 1041 1042 1043 1044 1045 1046 |
} /* Compute real number of used bytes by file * Following three functions can go away when we'll have enough space in stat item */ static int real_space_diff(struct inode *inode, int sd_size) { |
bd4c625c0 reiserfs: run scr... |
1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 |
int bytes; loff_t blocksize = inode->i_sb->s_blocksize; if (S_ISLNK(inode->i_mode) || S_ISDIR(inode->i_mode)) return sd_size; /* End of file is also in full block with indirect reference, so round ** up to the next block. ** ** there is just no way to know if the tail is actually packed ** on the file, so we have to assume it isn't. When we pack the ** tail, we add 4 bytes to pretend there really is an unformatted ** node pointer */ bytes = ((inode->i_size + (blocksize - 1)) >> inode->i_sb->s_blocksize_bits) * UNFM_P_SIZE + sd_size; return bytes; |
1da177e4c Linux-2.6.12-rc2 |
1066 1067 1068 |
} static inline loff_t to_real_used_space(struct inode *inode, ulong blocks, |
bd4c625c0 reiserfs: run scr... |
1069 |
int sd_size) |
1da177e4c Linux-2.6.12-rc2 |
1070 |
{ |
bd4c625c0 reiserfs: run scr... |
1071 1072 1073 1074 1075 1076 |
if (S_ISLNK(inode->i_mode) || S_ISDIR(inode->i_mode)) { return inode->i_size + (loff_t) (real_space_diff(inode, sd_size)); } return ((loff_t) real_space_diff(inode, sd_size)) + (((loff_t) blocks) << 9); |
1da177e4c Linux-2.6.12-rc2 |
1077 1078 1079 1080 1081 |
} /* Compute number of blocks used by file in ReiserFS counting */ static inline ulong to_fake_used_blocks(struct inode *inode, int sd_size) { |
bd4c625c0 reiserfs: run scr... |
1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 |
loff_t bytes = inode_get_bytes(inode); loff_t real_space = real_space_diff(inode, sd_size); /* keeps fsck and non-quota versions of reiserfs happy */ if (S_ISLNK(inode->i_mode) || S_ISDIR(inode->i_mode)) { bytes += (loff_t) 511; } /* files from before the quota patch might i_blocks such that ** bytes < real_space. Deal with that here to prevent it from ** going negative. */ if (bytes < real_space) return 0; return (bytes - real_space) >> 9; |
1da177e4c Linux-2.6.12-rc2 |
1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 |
} // // BAD: new directories have stat data of new type and all other items // of old type. Version stored in the inode says about body items, so // in update_stat_data we can not rely on inode, but have to check // item version directly // // called by read_locked_inode |
fec6d055d [PATCH] struct pa... |
1107 |
static void init_inode(struct inode *inode, struct treepath *path) |
1da177e4c Linux-2.6.12-rc2 |
1108 |
{ |
bd4c625c0 reiserfs: run scr... |
1109 1110 1111 1112 1113 1114 1115 1116 1117 |
struct buffer_head *bh; struct item_head *ih; __u32 rdev; //int version = ITEM_VERSION_1; bh = PATH_PLAST_BUFFER(path); ih = PATH_PITEM_HEAD(path); copy_key(INODE_PKEY(inode), &(ih->ih_key)); |
bd4c625c0 reiserfs: run scr... |
1118 1119 1120 1121 1122 1123 1124 |
INIT_LIST_HEAD(&(REISERFS_I(inode)->i_prealloc_list)); REISERFS_I(inode)->i_flags = 0; REISERFS_I(inode)->i_prealloc_block = 0; REISERFS_I(inode)->i_prealloc_count = 0; REISERFS_I(inode)->i_trans_id = 0; REISERFS_I(inode)->i_jl = NULL; |
068fbb315 [PATCH] reiserfs:... |
1125 |
reiserfs_init_xattr_rwsem(inode); |
bd4c625c0 reiserfs: run scr... |
1126 1127 1128 1129 1130 1131 1132 1133 1134 |
if (stat_data_v1(ih)) { struct stat_data_v1 *sd = (struct stat_data_v1 *)B_I_PITEM(bh, ih); unsigned long blocks; set_inode_item_key_version(inode, KEY_FORMAT_3_5); set_inode_sd_version(inode, STAT_DATA_V1); inode->i_mode = sd_v1_mode(sd); |
bfe868486 filesystems: add ... |
1135 |
set_nlink(inode, sd_v1_nlink(sd)); |
bd4c625c0 reiserfs: run scr... |
1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 |
inode->i_uid = sd_v1_uid(sd); inode->i_gid = sd_v1_gid(sd); inode->i_size = sd_v1_size(sd); inode->i_atime.tv_sec = sd_v1_atime(sd); inode->i_mtime.tv_sec = sd_v1_mtime(sd); inode->i_ctime.tv_sec = sd_v1_ctime(sd); inode->i_atime.tv_nsec = 0; inode->i_ctime.tv_nsec = 0; inode->i_mtime.tv_nsec = 0; inode->i_blocks = sd_v1_blocks(sd); inode->i_generation = le32_to_cpu(INODE_PKEY(inode)->k_dir_id); blocks = (inode->i_size + 511) >> 9; blocks = _ROUND_UP(blocks, inode->i_sb->s_blocksize >> 9); if (inode->i_blocks > blocks) { // there was a bug in <=3.5.23 when i_blocks could take negative // values. Starting from 3.5.17 this value could even be stored in // stat data. For such files we set i_blocks based on file // size. Just 2 notes: this can be wrong for sparce files. On-disk value will be // only updated if file's inode will ever change inode->i_blocks = blocks; } |
1da177e4c Linux-2.6.12-rc2 |
1158 |
|
bd4c625c0 reiserfs: run scr... |
1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 |
rdev = sd_v1_rdev(sd); REISERFS_I(inode)->i_first_direct_byte = sd_v1_first_direct_byte(sd); /* an early bug in the quota code can give us an odd number for the ** block count. This is incorrect, fix it here. */ if (inode->i_blocks & 1) { inode->i_blocks++; } inode_set_bytes(inode, to_real_used_space(inode, inode->i_blocks, SD_V1_SIZE)); /* nopack is initially zero for v1 objects. For v2 objects, nopack is initialised from sd_attrs */ REISERFS_I(inode)->i_flags &= ~i_nopack_mask; } else { // new stat data found, but object may have old items // (directories and symlinks) struct stat_data *sd = (struct stat_data *)B_I_PITEM(bh, ih); inode->i_mode = sd_v2_mode(sd); |
bfe868486 filesystems: add ... |
1180 |
set_nlink(inode, sd_v2_nlink(sd)); |
bd4c625c0 reiserfs: run scr... |
1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 |
inode->i_uid = sd_v2_uid(sd); inode->i_size = sd_v2_size(sd); inode->i_gid = sd_v2_gid(sd); inode->i_mtime.tv_sec = sd_v2_mtime(sd); inode->i_atime.tv_sec = sd_v2_atime(sd); inode->i_ctime.tv_sec = sd_v2_ctime(sd); inode->i_ctime.tv_nsec = 0; inode->i_mtime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; inode->i_blocks = sd_v2_blocks(sd); rdev = sd_v2_rdev(sd); if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) inode->i_generation = le32_to_cpu(INODE_PKEY(inode)->k_dir_id); else inode->i_generation = sd_v2_generation(sd); |
1da177e4c Linux-2.6.12-rc2 |
1197 |
|
bd4c625c0 reiserfs: run scr... |
1198 1199 1200 1201 1202 1203 1204 1205 1206 |
if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) set_inode_item_key_version(inode, KEY_FORMAT_3_5); else set_inode_item_key_version(inode, KEY_FORMAT_3_6); REISERFS_I(inode)->i_first_direct_byte = 0; set_inode_sd_version(inode, STAT_DATA_V2); inode_set_bytes(inode, to_real_used_space(inode, inode->i_blocks, SD_V2_SIZE)); |
421f91d21 fix typos concern... |
1207 |
/* read persistent inode attributes from sd and initialise |
bd4c625c0 reiserfs: run scr... |
1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 |
generic inode flags from them */ REISERFS_I(inode)->i_attrs = sd_v2_attrs(sd); sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode); } pathrelse(path); if (S_ISREG(inode->i_mode)) { inode->i_op = &reiserfs_file_inode_operations; inode->i_fop = &reiserfs_file_operations; inode->i_mapping->a_ops = &reiserfs_address_space_operations; } else if (S_ISDIR(inode->i_mode)) { inode->i_op = &reiserfs_dir_inode_operations; inode->i_fop = &reiserfs_dir_operations; } else if (S_ISLNK(inode->i_mode)) { inode->i_op = &reiserfs_symlink_inode_operations; inode->i_mapping->a_ops = &reiserfs_address_space_operations; } else { inode->i_blocks = 0; inode->i_op = &reiserfs_special_inode_operations; init_special_inode(inode, inode->i_mode, new_decode_dev(rdev)); } } |
1da177e4c Linux-2.6.12-rc2 |
1230 1231 |
// update new stat data with inode fields |
bd4c625c0 reiserfs: run scr... |
1232 |
static void inode2sd(void *sd, struct inode *inode, loff_t size) |
1da177e4c Linux-2.6.12-rc2 |
1233 |
{ |
bd4c625c0 reiserfs: run scr... |
1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 |
struct stat_data *sd_v2 = (struct stat_data *)sd; __u16 flags; set_sd_v2_mode(sd_v2, inode->i_mode); set_sd_v2_nlink(sd_v2, inode->i_nlink); set_sd_v2_uid(sd_v2, inode->i_uid); set_sd_v2_size(sd_v2, size); set_sd_v2_gid(sd_v2, inode->i_gid); set_sd_v2_mtime(sd_v2, inode->i_mtime.tv_sec); set_sd_v2_atime(sd_v2, inode->i_atime.tv_sec); set_sd_v2_ctime(sd_v2, inode->i_ctime.tv_sec); set_sd_v2_blocks(sd_v2, to_fake_used_blocks(inode, SD_V2_SIZE)); if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) set_sd_v2_rdev(sd_v2, new_encode_dev(inode->i_rdev)); else set_sd_v2_generation(sd_v2, inode->i_generation); flags = REISERFS_I(inode)->i_attrs; i_attrs_to_sd_attrs(inode, &flags); set_sd_v2_attrs(sd_v2, flags); |
1da177e4c Linux-2.6.12-rc2 |
1253 |
} |
1da177e4c Linux-2.6.12-rc2 |
1254 |
// used to copy inode's fields to old stat data |
bd4c625c0 reiserfs: run scr... |
1255 |
static void inode2sd_v1(void *sd, struct inode *inode, loff_t size) |
1da177e4c Linux-2.6.12-rc2 |
1256 |
{ |
bd4c625c0 reiserfs: run scr... |
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 |
struct stat_data_v1 *sd_v1 = (struct stat_data_v1 *)sd; set_sd_v1_mode(sd_v1, inode->i_mode); set_sd_v1_uid(sd_v1, inode->i_uid); set_sd_v1_gid(sd_v1, inode->i_gid); set_sd_v1_nlink(sd_v1, inode->i_nlink); set_sd_v1_size(sd_v1, size); set_sd_v1_atime(sd_v1, inode->i_atime.tv_sec); set_sd_v1_ctime(sd_v1, inode->i_ctime.tv_sec); set_sd_v1_mtime(sd_v1, inode->i_mtime.tv_sec); if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) set_sd_v1_rdev(sd_v1, new_encode_dev(inode->i_rdev)); else set_sd_v1_blocks(sd_v1, to_fake_used_blocks(inode, SD_V1_SIZE)); |
1da177e4c Linux-2.6.12-rc2 |
1272 |
|
bd4c625c0 reiserfs: run scr... |
1273 1274 1275 1276 |
// Sigh. i_first_direct_byte is back set_sd_v1_first_direct_byte(sd_v1, REISERFS_I(inode)->i_first_direct_byte); } |
1da177e4c Linux-2.6.12-rc2 |
1277 1278 1279 1280 |
/* NOTE, you must prepare the buffer head before sending it here, ** and then log it after the call */ |
fec6d055d [PATCH] struct pa... |
1281 |
static void update_stat_data(struct treepath *path, struct inode *inode, |
bd4c625c0 reiserfs: run scr... |
1282 |
loff_t size) |
1da177e4c Linux-2.6.12-rc2 |
1283 |
{ |
bd4c625c0 reiserfs: run scr... |
1284 1285 1286 1287 1288 1289 1290 |
struct buffer_head *bh; struct item_head *ih; bh = PATH_PLAST_BUFFER(path); ih = PATH_PITEM_HEAD(path); if (!is_statdata_le_ih(ih)) |
c3a9c2109 reiserfs: rework ... |
1291 |
reiserfs_panic(inode->i_sb, "vs-13065", "key %k, found item %h", |
bd4c625c0 reiserfs: run scr... |
1292 1293 1294 1295 1296 1297 1298 1299 |
INODE_PKEY(inode), ih); if (stat_data_v1(ih)) { // path points to old stat data inode2sd_v1(B_I_PITEM(bh, ih), inode, size); } else { inode2sd(B_I_PITEM(bh, ih), inode, size); } |
1da177e4c Linux-2.6.12-rc2 |
1300 |
|
bd4c625c0 reiserfs: run scr... |
1301 1302 |
return; } |
1da177e4c Linux-2.6.12-rc2 |
1303 |
|
bd4c625c0 reiserfs: run scr... |
1304 1305 |
void reiserfs_update_sd_size(struct reiserfs_transaction_handle *th, struct inode *inode, loff_t size) |
1da177e4c Linux-2.6.12-rc2 |
1306 |
{ |
bd4c625c0 reiserfs: run scr... |
1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 |
struct cpu_key key; INITIALIZE_PATH(path); struct buffer_head *bh; int fs_gen; struct item_head *ih, tmp_ih; int retval; BUG_ON(!th->t_trans_id); make_cpu_key(&key, inode, SD_OFFSET, TYPE_STAT_DATA, 3); //key type is unimportant for (;;) { int pos; /* look for the object's stat data */ retval = search_item(inode->i_sb, &key, &path); if (retval == IO_ERROR) { |
0030b6457 reiserfs: use rei... |
1323 1324 1325 |
reiserfs_error(inode->i_sb, "vs-13050", "i/o failure occurred trying to " "update %K stat data", &key); |
bd4c625c0 reiserfs: run scr... |
1326 1327 1328 1329 1330 1331 1332 1333 1334 |
return; } if (retval == ITEM_NOT_FOUND) { pos = PATH_LAST_POSITION(&path); pathrelse(&path); if (inode->i_nlink == 0) { /*reiserfs_warning (inode->i_sb, "vs-13050: reiserfs_update_sd: i_nlink == 0, stat data not found"); */ return; } |
45b03d5e8 reiserfs: rework ... |
1335 1336 1337 |
reiserfs_warning(inode->i_sb, "vs-13060", "stat data of object %k (nlink == %d) " "not found (pos %d)", |
bd4c625c0 reiserfs: run scr... |
1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 |
INODE_PKEY(inode), inode->i_nlink, pos); reiserfs_check_path(&path); return; } /* sigh, prepare_for_journal might schedule. When it schedules the ** FS might change. We have to detect that, and loop back to the ** search if the stat data item has moved */ bh = get_last_bh(&path); ih = get_ih(&path); copy_item_head(&tmp_ih, ih); fs_gen = get_generation(inode->i_sb); reiserfs_prepare_for_journal(inode->i_sb, bh, 1); if (fs_changed(fs_gen, inode->i_sb) && item_moved(&tmp_ih, &path)) { reiserfs_restore_prepared_buffer(inode->i_sb, bh); continue; /* Stat_data item has been moved after scheduling. */ } break; } update_stat_data(&path, inode, size); journal_mark_dirty(th, th->t_super, bh); pathrelse(&path); return; |
1da177e4c Linux-2.6.12-rc2 |
1364 1365 1366 1367 1368 1369 1370 1371 |
} /* reiserfs_read_locked_inode is called to read the inode off disk, and it ** does a make_bad_inode when things go wrong. But, we need to make sure ** and clear the key in the private portion of the inode, otherwise a ** corresponding iput might try to delete whatever object the inode last ** represented. */ |
bd4c625c0 reiserfs: run scr... |
1372 1373 1374 1375 |
static void reiserfs_make_bad_inode(struct inode *inode) { memset(INODE_PKEY(inode), 0, KEY_SIZE); make_bad_inode(inode); |
1da177e4c Linux-2.6.12-rc2 |
1376 1377 1378 1379 1380 1381 |
} // // initially this function was derived from minix or ext2's analog and // evolved as the prototype did // |
bd4c625c0 reiserfs: run scr... |
1382 |
int reiserfs_init_locked_inode(struct inode *inode, void *p) |
1da177e4c Linux-2.6.12-rc2 |
1383 |
{ |
bd4c625c0 reiserfs: run scr... |
1384 1385 1386 1387 |
struct reiserfs_iget_args *args = (struct reiserfs_iget_args *)p; inode->i_ino = args->objectid; INODE_PKEY(inode)->k_dir_id = cpu_to_le32(args->dirid); return 0; |
1da177e4c Linux-2.6.12-rc2 |
1388 1389 1390 1391 |
} /* looks for stat data in the tree, and fills up the fields of in-core inode stat data fields */ |
bd4c625c0 reiserfs: run scr... |
1392 1393 |
void reiserfs_read_locked_inode(struct inode *inode, struct reiserfs_iget_args *args) |
1da177e4c Linux-2.6.12-rc2 |
1394 |
{ |
bd4c625c0 reiserfs: run scr... |
1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 |
INITIALIZE_PATH(path_to_sd); struct cpu_key key; unsigned long dirino; int retval; dirino = args->dirid; /* set version 1, version 2 could be used too, because stat data key is the same in both versions */ key.version = KEY_FORMAT_3_5; key.on_disk_key.k_dir_id = dirino; key.on_disk_key.k_objectid = inode->i_ino; key.on_disk_key.k_offset = 0; key.on_disk_key.k_type = 0; /* look for the object's stat data */ retval = search_item(inode->i_sb, &key, &path_to_sd); if (retval == IO_ERROR) { |
0030b6457 reiserfs: use rei... |
1413 1414 1415 |
reiserfs_error(inode->i_sb, "vs-13070", "i/o failure occurred trying to find " "stat data of %K", &key); |
bd4c625c0 reiserfs: run scr... |
1416 1417 1418 1419 1420 1421 1422 |
reiserfs_make_bad_inode(inode); return; } if (retval != ITEM_FOUND) { /* a stale NFS handle can trigger this without it being an error */ pathrelse(&path_to_sd); reiserfs_make_bad_inode(inode); |
6d6b77f16 filesystems: add ... |
1423 |
clear_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 |
return; } init_inode(inode, &path_to_sd); /* It is possible that knfsd is trying to access inode of a file that is being removed from the disk by some other thread. As we update sd on unlink all that is required is to check for nlink here. This bug was first found by Sizif when debugging SquidNG/Butterfly, forgotten, and found again after Philippe |
0222e6571 reiserfs: strip t... |
1434 |
Gramoulle <philippe.gramoulle@mmania.com> reproduced it. |
bd4c625c0 reiserfs: run scr... |
1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 |
More logical fix would require changes in fs/inode.c:iput() to remove inode from hash-table _after_ fs cleaned disk stuff up and in iget() to return NULL if I_FREEING inode is found in hash-table. */ /* Currently there is one place where it's ok to meet inode with nlink==0: processing of open-unlinked and half-truncated files during mount (fs/reiserfs/super.c:finish_unfinished()). */ if ((inode->i_nlink == 0) && !REISERFS_SB(inode->i_sb)->s_is_unlinked_ok) { |
45b03d5e8 reiserfs: rework ... |
1445 |
reiserfs_warning(inode->i_sb, "vs-13075", |
bd4c625c0 reiserfs: run scr... |
1446 1447 1448 1449 1450 1451 1452 |
"dead inode read from disk %K. " "This is likely to be race with knfsd. Ignore", &key); reiserfs_make_bad_inode(inode); } reiserfs_check_path(&path_to_sd); /* init inode should be relsing */ |
1da177e4c Linux-2.6.12-rc2 |
1453 |
|
4482a087d reiserfs: cache n... |
1454 1455 1456 1457 1458 |
/* * Stat data v1 doesn't support ACLs. */ if (get_inode_sd_version(inode) == STAT_DATA_V1) cache_no_acl(inode); |
1da177e4c Linux-2.6.12-rc2 |
1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 |
} /** * reiserfs_find_actor() - "find actor" reiserfs supplies to iget5_locked(). * * @inode: inode from hash table to check * @opaque: "cookie" passed to iget5_locked(). This is &reiserfs_iget_args. * * This function is called by iget5_locked() to distinguish reiserfs inodes * having the same inode numbers. Such inodes can only exist due to some * error condition. One of them should be bad. Inodes with identical * inode numbers (objectids) are distinguished by parent directory ids. * */ |
bd4c625c0 reiserfs: run scr... |
1473 |
int reiserfs_find_actor(struct inode *inode, void *opaque) |
1da177e4c Linux-2.6.12-rc2 |
1474 |
{ |
bd4c625c0 reiserfs: run scr... |
1475 |
struct reiserfs_iget_args *args; |
1da177e4c Linux-2.6.12-rc2 |
1476 |
|
bd4c625c0 reiserfs: run scr... |
1477 1478 1479 1480 |
args = opaque; /* args is already in CPU order */ return (inode->i_ino == args->objectid) && (le32_to_cpu(INODE_PKEY(inode)->k_dir_id) == args->dirid); |
1da177e4c Linux-2.6.12-rc2 |
1481 |
} |
bd4c625c0 reiserfs: run scr... |
1482 |
struct inode *reiserfs_iget(struct super_block *s, const struct cpu_key *key) |
1da177e4c Linux-2.6.12-rc2 |
1483 |
{ |
bd4c625c0 reiserfs: run scr... |
1484 1485 1486 1487 1488 |
struct inode *inode; struct reiserfs_iget_args args; args.objectid = key->on_disk_key.k_objectid; args.dirid = key->on_disk_key.k_dir_id; |
175359f89 reiserfs: Fix sof... |
1489 |
reiserfs_write_unlock(s); |
bd4c625c0 reiserfs: run scr... |
1490 1491 1492 |
inode = iget5_locked(s, key->on_disk_key.k_objectid, reiserfs_find_actor, reiserfs_init_locked_inode, (void *)(&args)); |
175359f89 reiserfs: Fix sof... |
1493 |
reiserfs_write_lock(s); |
bd4c625c0 reiserfs: run scr... |
1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 |
if (!inode) return ERR_PTR(-ENOMEM); if (inode->i_state & I_NEW) { reiserfs_read_locked_inode(inode, &args); unlock_new_inode(inode); } if (comp_short_keys(INODE_PKEY(inode), key) || is_bad_inode(inode)) { /* either due to i/o error or a stale NFS handle */ iput(inode); inode = NULL; } return inode; |
1da177e4c Linux-2.6.12-rc2 |
1508 |
} |
be55caf17 reiserfs: new exp... |
1509 1510 |
static struct dentry *reiserfs_get_dentry(struct super_block *sb, u32 objectid, u32 dir_id, u32 generation) |
1da177e4c Linux-2.6.12-rc2 |
1511 |
{ |
bd4c625c0 reiserfs: run scr... |
1512 |
struct cpu_key key; |
bd4c625c0 reiserfs: run scr... |
1513 |
struct inode *inode; |
be55caf17 reiserfs: new exp... |
1514 1515 |
key.on_disk_key.k_objectid = objectid; key.on_disk_key.k_dir_id = dir_id; |
bd4c625c0 reiserfs: run scr... |
1516 1517 |
reiserfs_write_lock(sb); inode = reiserfs_iget(sb, &key); |
be55caf17 reiserfs: new exp... |
1518 1519 |
if (inode && !IS_ERR(inode) && generation != 0 && generation != inode->i_generation) { |
bd4c625c0 reiserfs: run scr... |
1520 1521 1522 1523 |
iput(inode); inode = NULL; } reiserfs_write_unlock(sb); |
440037287 [PATCH] switch al... |
1524 1525 |
return d_obtain_alias(inode); |
1da177e4c Linux-2.6.12-rc2 |
1526 |
} |
be55caf17 reiserfs: new exp... |
1527 1528 |
struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid, int fh_len, int fh_type) |
bd4c625c0 reiserfs: run scr... |
1529 |
{ |
bd4c625c0 reiserfs: run scr... |
1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 |
/* fhtype happens to reflect the number of u32s encoded. * due to a bug in earlier code, fhtype might indicate there * are more u32s then actually fitted. * so if fhtype seems to be more than len, reduce fhtype. * Valid types are: * 2 - objectid + dir_id - legacy support * 3 - objectid + dir_id + generation * 4 - objectid + dir_id + objectid and dirid of parent - legacy * 5 - objectid + dir_id + generation + objectid and dirid of parent * 6 - as above plus generation of directory * 6 does not fit in NFSv2 handles */ |
be55caf17 reiserfs: new exp... |
1542 1543 |
if (fh_type > fh_len) { if (fh_type != 6 || fh_len != 5) |
45b03d5e8 reiserfs: rework ... |
1544 |
reiserfs_warning(sb, "reiserfs-13077", |
be55caf17 reiserfs: new exp... |
1545 1546 1547 |
"nfsd/reiserfs, fhtype=%d, len=%d - odd", fh_type, fh_len); fh_type = 5; |
bd4c625c0 reiserfs: run scr... |
1548 |
} |
be55caf17 reiserfs: new exp... |
1549 1550 1551 |
return reiserfs_get_dentry(sb, fid->raw[0], fid->raw[1], (fh_type == 3 || fh_type >= 5) ? fid->raw[2] : 0); } |
1da177e4c Linux-2.6.12-rc2 |
1552 |
|
be55caf17 reiserfs: new exp... |
1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 |
struct dentry *reiserfs_fh_to_parent(struct super_block *sb, struct fid *fid, int fh_len, int fh_type) { if (fh_type < 4) return NULL; return reiserfs_get_dentry(sb, (fh_type >= 5) ? fid->raw[3] : fid->raw[2], (fh_type >= 5) ? fid->raw[4] : fid->raw[3], (fh_type == 6) ? fid->raw[5] : 0); |
1da177e4c Linux-2.6.12-rc2 |
1563 |
} |
bd4c625c0 reiserfs: run scr... |
1564 1565 1566 1567 1568 |
int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp, int need_parent) { struct inode *inode = dentry->d_inode; int maxlen = *lenp; |
5fe0c2378 exportfs: Return ... |
1569 1570 |
if (need_parent && (maxlen < 5)) { *lenp = 5; |
bd4c625c0 reiserfs: run scr... |
1571 |
return 255; |
5fe0c2378 exportfs: Return ... |
1572 1573 1574 1575 |
} else if (maxlen < 3) { *lenp = 3; return 255; } |
bd4c625c0 reiserfs: run scr... |
1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 |
data[0] = inode->i_ino; data[1] = le32_to_cpu(INODE_PKEY(inode)->k_dir_id); data[2] = inode->i_generation; *lenp = 3; /* no room for directory info? return what we've stored so far */ if (maxlen < 5 || !need_parent) return 3; spin_lock(&dentry->d_lock); inode = dentry->d_parent->d_inode; data[3] = inode->i_ino; data[4] = le32_to_cpu(INODE_PKEY(inode)->k_dir_id); *lenp = 5; if (maxlen >= 6) { data[5] = inode->i_generation; *lenp = 6; } spin_unlock(&dentry->d_lock); return *lenp; } |
1da177e4c Linux-2.6.12-rc2 |
1597 1598 1599 1600 1601 1602 1603 1604 |
/* looks for stat data, then copies fields to it, marks the buffer containing stat data as dirty */ /* reiserfs inodes are never really dirty, since the dirty inode call ** always logs them. This call allows the VFS inode marking routines ** to properly mark inodes for datasync and such, but only actually ** does something when called for a synchronous update. */ |
a9185b41a pass writeback_co... |
1605 |
int reiserfs_write_inode(struct inode *inode, struct writeback_control *wbc) |
bd4c625c0 reiserfs: run scr... |
1606 1607 1608 1609 1610 1611 1612 |
{ struct reiserfs_transaction_handle th; int jbegin_count = 1; if (inode->i_sb->s_flags & MS_RDONLY) return -EROFS; /* memory pressure can sometimes initiate write_inode calls with sync == 1, |
0222e6571 reiserfs: strip t... |
1613 |
** these cases are just when the system needs ram, not when the |
bd4c625c0 reiserfs: run scr... |
1614 1615 1616 |
** inode needs to reach disk for safety, and they can safely be ** ignored because the altered inode has already been logged. */ |
a9185b41a pass writeback_co... |
1617 |
if (wbc->sync_mode == WB_SYNC_ALL && !(current->flags & PF_MEMALLOC)) { |
bd4c625c0 reiserfs: run scr... |
1618 1619 1620 1621 1622 1623 1624 1625 |
reiserfs_write_lock(inode->i_sb); if (!journal_begin(&th, inode->i_sb, jbegin_count)) { reiserfs_update_sd(&th, inode); journal_end_sync(&th, inode->i_sb, jbegin_count); } reiserfs_write_unlock(inode->i_sb); } return 0; |
1da177e4c Linux-2.6.12-rc2 |
1626 1627 1628 1629 |
} /* stat data of new object is inserted already, this inserts the item containing "." and ".." entries */ |
bd4c625c0 reiserfs: run scr... |
1630 1631 |
static int reiserfs_new_directory(struct reiserfs_transaction_handle *th, struct inode *inode, |
fec6d055d [PATCH] struct pa... |
1632 |
struct item_head *ih, struct treepath *path, |
bd4c625c0 reiserfs: run scr... |
1633 |
struct inode *dir) |
1da177e4c Linux-2.6.12-rc2 |
1634 |
{ |
bd4c625c0 reiserfs: run scr... |
1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 |
struct super_block *sb = th->t_super; char empty_dir[EMPTY_DIR_SIZE]; char *body = empty_dir; struct cpu_key key; int retval; BUG_ON(!th->t_trans_id); _make_cpu_key(&key, KEY_FORMAT_3_5, le32_to_cpu(ih->ih_key.k_dir_id), le32_to_cpu(ih->ih_key.k_objectid), DOT_OFFSET, TYPE_DIRENTRY, 3 /*key length */ ); /* compose item head for new item. Directories consist of items of old type (ITEM_VERSION_1). Do not set key (second arg is 0), it is done by reiserfs_new_inode */ if (old_format_only(sb)) { make_le_item_head(ih, NULL, KEY_FORMAT_3_5, DOT_OFFSET, TYPE_DIRENTRY, EMPTY_DIR_SIZE_V1, 2); make_empty_dir_item_v1(body, ih->ih_key.k_dir_id, ih->ih_key.k_objectid, INODE_PKEY(dir)->k_dir_id, INODE_PKEY(dir)->k_objectid); } else { make_le_item_head(ih, NULL, KEY_FORMAT_3_5, DOT_OFFSET, TYPE_DIRENTRY, EMPTY_DIR_SIZE, 2); make_empty_dir_item(body, ih->ih_key.k_dir_id, ih->ih_key.k_objectid, INODE_PKEY(dir)->k_dir_id, INODE_PKEY(dir)->k_objectid); } /* look for place in the tree for new item */ retval = search_item(sb, &key, path); if (retval == IO_ERROR) { |
0030b6457 reiserfs: use rei... |
1671 1672 |
reiserfs_error(sb, "vs-13080", "i/o failure occurred creating new directory"); |
bd4c625c0 reiserfs: run scr... |
1673 1674 1675 1676 |
return -EIO; } if (retval == ITEM_FOUND) { pathrelse(path); |
45b03d5e8 reiserfs: rework ... |
1677 |
reiserfs_warning(sb, "vs-13070", |
bd4c625c0 reiserfs: run scr... |
1678 1679 1680 1681 |
"object with this key exists (%k)", &(ih->ih_key)); return -EEXIST; } |
1da177e4c Linux-2.6.12-rc2 |
1682 |
|
bd4c625c0 reiserfs: run scr... |
1683 1684 1685 |
/* insert item, that is empty directory item */ return reiserfs_insert_item(th, path, &key, ih, inode, body); } |
1da177e4c Linux-2.6.12-rc2 |
1686 1687 1688 |
/* stat data of object has been inserted, this inserts the item containing the body of symlink */ |
bd4c625c0 reiserfs: run scr... |
1689 1690 |
static int reiserfs_new_symlink(struct reiserfs_transaction_handle *th, struct inode *inode, /* Inode of symlink */ struct item_head *ih, |
fec6d055d [PATCH] struct pa... |
1691 |
struct treepath *path, const char *symname, |
bd4c625c0 reiserfs: run scr... |
1692 |
int item_len) |
1da177e4c Linux-2.6.12-rc2 |
1693 |
{ |
bd4c625c0 reiserfs: run scr... |
1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 |
struct super_block *sb = th->t_super; struct cpu_key key; int retval; BUG_ON(!th->t_trans_id); _make_cpu_key(&key, KEY_FORMAT_3_5, le32_to_cpu(ih->ih_key.k_dir_id), le32_to_cpu(ih->ih_key.k_objectid), 1, TYPE_DIRECT, 3 /*key length */ ); make_le_item_head(ih, NULL, KEY_FORMAT_3_5, 1, TYPE_DIRECT, item_len, 0 /*free_space */ ); /* look for place in the tree for new item */ retval = search_item(sb, &key, path); if (retval == IO_ERROR) { |
0030b6457 reiserfs: use rei... |
1711 1712 |
reiserfs_error(sb, "vs-13080", "i/o failure occurred creating new symlink"); |
bd4c625c0 reiserfs: run scr... |
1713 1714 1715 1716 |
return -EIO; } if (retval == ITEM_FOUND) { pathrelse(path); |
45b03d5e8 reiserfs: rework ... |
1717 |
reiserfs_warning(sb, "vs-13080", |
bd4c625c0 reiserfs: run scr... |
1718 1719 1720 1721 |
"object with this key exists (%k)", &(ih->ih_key)); return -EEXIST; } |
1da177e4c Linux-2.6.12-rc2 |
1722 |
|
bd4c625c0 reiserfs: run scr... |
1723 1724 1725 |
/* insert item, that is body of symlink */ return reiserfs_insert_item(th, path, &key, ih, inode, symname); } |
1da177e4c Linux-2.6.12-rc2 |
1726 1727 1728 1729 |
/* inserts the stat data into the tree, and then calls reiserfs_new_directory (to insert ".", ".." item if new object is directory) or reiserfs_new_symlink (to insert symlink body if new |
0222e6571 reiserfs: strip t... |
1730 |
object is symlink) or nothing (if new object is regular file) |
1da177e4c Linux-2.6.12-rc2 |
1731 1732 1733 1734 1735 |
NOTE! uid and gid must already be set in the inode. If we return non-zero due to an error, we have to drop the quota previously allocated for the fresh inode. This can only be done outside a transaction, so if we return non-zero, we also end the transaction. */ |
bd4c625c0 reiserfs: run scr... |
1736 |
int reiserfs_new_inode(struct reiserfs_transaction_handle *th, |
8e0718924 reiserfs: propaga... |
1737 |
struct inode *dir, umode_t mode, const char *symname, |
0222e6571 reiserfs: strip t... |
1738 |
/* 0 for regular, EMTRY_DIR_SIZE for dirs, |
bd4c625c0 reiserfs: run scr... |
1739 1740 |
strlen (symname) for symlinks) */ loff_t i_size, struct dentry *dentry, |
57fe60df6 reiserfs: add ato... |
1741 1742 |
struct inode *inode, struct reiserfs_security_handle *security) |
1da177e4c Linux-2.6.12-rc2 |
1743 |
{ |
bd4c625c0 reiserfs: run scr... |
1744 |
struct super_block *sb; |
c1eaa26b6 nfsd race fixes: ... |
1745 |
struct reiserfs_iget_args args; |
bd4c625c0 reiserfs: run scr... |
1746 1747 1748 1749 1750 1751 1752 1753 |
INITIALIZE_PATH(path_to_key); struct cpu_key key; struct item_head ih; struct stat_data sd; int retval; int err; BUG_ON(!th->t_trans_id); |
871a29315 dquot: cleanup dq... |
1754 |
dquot_initialize(inode); |
63936ddaa dquot: cleanup in... |
1755 1756 |
err = dquot_alloc_inode(inode); if (err) |
bd4c625c0 reiserfs: run scr... |
1757 |
goto out_end_trans; |
585b7747d [PATCH] Remove un... |
1758 |
if (!dir->i_nlink) { |
bd4c625c0 reiserfs: run scr... |
1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 |
err = -EPERM; goto out_bad_inode; } sb = dir->i_sb; /* item head of new item */ ih.ih_key.k_dir_id = reiserfs_choose_packing(dir); ih.ih_key.k_objectid = cpu_to_le32(reiserfs_get_unused_objectid(th)); if (!ih.ih_key.k_objectid) { err = -ENOMEM; goto out_bad_inode; } |
c1eaa26b6 nfsd race fixes: ... |
1772 |
args.objectid = inode->i_ino = le32_to_cpu(ih.ih_key.k_objectid); |
2f1169e2d fix breakage in r... |
1773 1774 1775 1776 1777 1778 |
if (old_format_only(sb)) make_le_item_head(&ih, NULL, KEY_FORMAT_3_5, SD_OFFSET, TYPE_STAT_DATA, SD_V1_SIZE, MAX_US_INT); else make_le_item_head(&ih, NULL, KEY_FORMAT_3_6, SD_OFFSET, TYPE_STAT_DATA, SD_SIZE, MAX_US_INT); |
c1eaa26b6 nfsd race fixes: ... |
1779 1780 1781 1782 1783 1784 1785 |
memcpy(INODE_PKEY(inode), &(ih.ih_key), KEY_SIZE); args.dirid = le32_to_cpu(ih.ih_key.k_dir_id); if (insert_inode_locked4(inode, args.objectid, reiserfs_find_actor, &args) < 0) { err = -EINVAL; goto out_bad_inode; } |
bd4c625c0 reiserfs: run scr... |
1786 |
if (old_format_only(sb)) |
0222e6571 reiserfs: strip t... |
1787 |
/* not a perfect generation count, as object ids can be reused, but |
bd4c625c0 reiserfs: run scr... |
1788 1789 1790 1791 1792 1793 |
** this is as good as reiserfs can do right now. ** note that the private part of inode isn't filled in yet, we have ** to use the directory. */ inode->i_generation = le32_to_cpu(INODE_PKEY(dir)->k_objectid); else |
1da177e4c Linux-2.6.12-rc2 |
1794 |
#if defined( USE_INODE_GENERATION_COUNTER ) |
bd4c625c0 reiserfs: run scr... |
1795 1796 |
inode->i_generation = le32_to_cpu(REISERFS_SB(sb)->s_rs->s_inode_generation); |
1da177e4c Linux-2.6.12-rc2 |
1797 |
#else |
bd4c625c0 reiserfs: run scr... |
1798 |
inode->i_generation = ++event; |
1da177e4c Linux-2.6.12-rc2 |
1799 |
#endif |
bd4c625c0 reiserfs: run scr... |
1800 |
/* fill stat data */ |
bfe868486 filesystems: add ... |
1801 |
set_nlink(inode, (S_ISDIR(mode) ? 2 : 1)); |
bd4c625c0 reiserfs: run scr... |
1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 |
/* uid and gid must already be set by the caller for quota init */ /* symlink cannot be immutable or append only, right? */ if (S_ISLNK(inode->i_mode)) inode->i_flags &= ~(S_IMMUTABLE | S_APPEND); inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; inode->i_size = i_size; inode->i_blocks = 0; inode->i_bytes = 0; REISERFS_I(inode)->i_first_direct_byte = S_ISLNK(mode) ? 1 : U32_MAX /*NO_BYTES_IN_DIRECT_ITEM */ ; INIT_LIST_HEAD(&(REISERFS_I(inode)->i_prealloc_list)); REISERFS_I(inode)->i_flags = 0; REISERFS_I(inode)->i_prealloc_block = 0; REISERFS_I(inode)->i_prealloc_count = 0; REISERFS_I(inode)->i_trans_id = 0; REISERFS_I(inode)->i_jl = NULL; REISERFS_I(inode)->i_attrs = REISERFS_I(dir)->i_attrs & REISERFS_INHERIT_MASK; sd_attrs_to_i_attrs(REISERFS_I(inode)->i_attrs, inode); |
068fbb315 [PATCH] reiserfs:... |
1825 |
reiserfs_init_xattr_rwsem(inode); |
bd4c625c0 reiserfs: run scr... |
1826 |
|
bd4c625c0 reiserfs: run scr... |
1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 |
/* key to search for correct place for new stat data */ _make_cpu_key(&key, KEY_FORMAT_3_6, le32_to_cpu(ih.ih_key.k_dir_id), le32_to_cpu(ih.ih_key.k_objectid), SD_OFFSET, TYPE_STAT_DATA, 3 /*key length */ ); /* find proper place for inserting of stat data */ retval = search_item(sb, &key, &path_to_key); if (retval == IO_ERROR) { err = -EIO; goto out_bad_inode; } if (retval == ITEM_FOUND) { pathrelse(&path_to_key); err = -EEXIST; goto out_bad_inode; } if (old_format_only(sb)) { if (inode->i_uid & ~0xffff || inode->i_gid & ~0xffff) { pathrelse(&path_to_key); /* i_uid or i_gid is too big to be stored in stat data v3.5 */ err = -EINVAL; goto out_bad_inode; } inode2sd_v1(&sd, inode, inode->i_size); } else { inode2sd(&sd, inode, inode->i_size); } |
bd4c625c0 reiserfs: run scr... |
1854 1855 1856 |
// store in in-core inode the key of stat data and version all // object items will have (directory items will have old offset // format, other new objects will consist of new items) |
bd4c625c0 reiserfs: run scr... |
1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 |
if (old_format_only(sb) || S_ISDIR(mode) || S_ISLNK(mode)) set_inode_item_key_version(inode, KEY_FORMAT_3_5); else set_inode_item_key_version(inode, KEY_FORMAT_3_6); if (old_format_only(sb)) set_inode_sd_version(inode, STAT_DATA_V1); else set_inode_sd_version(inode, STAT_DATA_V2); /* insert the stat data into the tree */ |
1da177e4c Linux-2.6.12-rc2 |
1867 |
#ifdef DISPLACE_NEW_PACKING_LOCALITIES |
bd4c625c0 reiserfs: run scr... |
1868 1869 |
if (REISERFS_I(dir)->new_packing_locality) th->displace_new_blocks = 1; |
1da177e4c Linux-2.6.12-rc2 |
1870 |
#endif |
bd4c625c0 reiserfs: run scr... |
1871 1872 1873 1874 1875 1876 1877 1878 |
retval = reiserfs_insert_item(th, &path_to_key, &key, &ih, inode, (char *)(&sd)); if (retval) { err = retval; reiserfs_check_path(&path_to_key); goto out_bad_inode; } |
1da177e4c Linux-2.6.12-rc2 |
1879 |
#ifdef DISPLACE_NEW_PACKING_LOCALITIES |
bd4c625c0 reiserfs: run scr... |
1880 1881 |
if (!th->displace_new_blocks) REISERFS_I(dir)->new_packing_locality = 0; |
1da177e4c Linux-2.6.12-rc2 |
1882 |
#endif |
bd4c625c0 reiserfs: run scr... |
1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 |
if (S_ISDIR(mode)) { /* insert item with "." and ".." */ retval = reiserfs_new_directory(th, inode, &ih, &path_to_key, dir); } if (S_ISLNK(mode)) { /* insert body of symlink */ if (!old_format_only(sb)) i_size = ROUND_UP(i_size); retval = reiserfs_new_symlink(th, inode, &ih, &path_to_key, symname, i_size); } if (retval) { err = retval; reiserfs_check_path(&path_to_key); journal_end(th, th->t_super, th->t_blocks_allocated); goto out_inserted_sd; } |
bd4c625c0 reiserfs: run scr... |
1903 |
if (reiserfs_posixacl(inode->i_sb)) { |
0ab2621eb reiserfs: journal... |
1904 |
retval = reiserfs_inherit_default_acl(th, dir, dentry, inode); |
bd4c625c0 reiserfs: run scr... |
1905 1906 1907 1908 1909 1910 1911 |
if (retval) { err = retval; reiserfs_check_path(&path_to_key); journal_end(th, th->t_super, th->t_blocks_allocated); goto out_inserted_sd; } } else if (inode->i_sb->s_flags & MS_POSIXACL) { |
45b03d5e8 reiserfs: rework ... |
1912 1913 |
reiserfs_warning(inode->i_sb, "jdm-13090", "ACLs aren't enabled in the fs, " |
bd4c625c0 reiserfs: run scr... |
1914 |
"but vfs thinks they are!"); |
6dfede696 reiserfs: remove ... |
1915 1916 |
} else if (IS_PRIVATE(dir)) inode->i_flags |= S_PRIVATE; |
bd4c625c0 reiserfs: run scr... |
1917 |
|
57fe60df6 reiserfs: add ato... |
1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 |
if (security->name) { retval = reiserfs_security_write(th, inode, security); if (retval) { err = retval; reiserfs_check_path(&path_to_key); retval = journal_end(th, th->t_super, th->t_blocks_allocated); if (retval) err = retval; goto out_inserted_sd; } |
bd4c625c0 reiserfs: run scr... |
1929 |
} |
bd4c625c0 reiserfs: run scr... |
1930 1931 1932 1933 |
reiserfs_update_sd(th, inode); reiserfs_check_path(&path_to_key); return 0; |
1da177e4c Linux-2.6.12-rc2 |
1934 1935 1936 1937 1938 |
/* it looks like you can easily compress these two goto targets into * one. Keeping it like this doesn't actually hurt anything, and they * are place holders for what the quota code actually needs. */ |
bd4c625c0 reiserfs: run scr... |
1939 1940 1941 1942 1943 |
out_bad_inode: /* Invalidate the object, nothing was inserted yet */ INODE_PKEY(inode)->k_objectid = 0; /* Quota change must be inside a transaction for journaling */ |
63936ddaa dquot: cleanup in... |
1944 |
dquot_free_inode(inode); |
bd4c625c0 reiserfs: run scr... |
1945 1946 1947 1948 |
out_end_trans: journal_end(th, th->t_super, th->t_blocks_allocated); /* Drop can be outside and it needs more credits so it's better to have it outside */ |
9f7547580 dquot: cleanup dq... |
1949 |
dquot_drop(inode); |
bd4c625c0 reiserfs: run scr... |
1950 1951 1952 1953 |
inode->i_flags |= S_NOQUOTA; make_bad_inode(inode); out_inserted_sd: |
6d6b77f16 filesystems: add ... |
1954 |
clear_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
1955 |
th->t_trans_id = 0; /* so the caller can't use this handle later */ |
c1eaa26b6 nfsd race fixes: ... |
1956 |
unlock_new_inode(inode); /* OK to do even if we hadn't locked it */ |
d984561b3 reiserfs: elimina... |
1957 |
iput(inode); |
bd4c625c0 reiserfs: run scr... |
1958 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 |
} /* ** finds the tail page in the page cache, ** reads the last block in. ** ** On success, page_result is set to a locked, pinned page, and bh_result ** is set to an up to date buffer for the last block in the file. returns 0. ** ** tail conversion is not done, so bh_result might not be valid for writing ** check buffer_mapped(bh_result) and bh_result->b_blocknr != 0 before ** trying to write the block. ** ** on failure, nonzero is returned, page_result and bh_result are untouched. */ |
995c762ea reiserfs: rename ... |
1974 |
static int grab_tail_page(struct inode *inode, |
bd4c625c0 reiserfs: run scr... |
1975 1976 1977 1978 1979 1980 1981 |
struct page **page_result, struct buffer_head **bh_result) { /* we want the page with the last byte in the file, ** not the page that will hold the next byte for appending */ |
995c762ea reiserfs: rename ... |
1982 |
unsigned long index = (inode->i_size - 1) >> PAGE_CACHE_SHIFT; |
bd4c625c0 reiserfs: run scr... |
1983 1984 |
unsigned long pos = 0; unsigned long start = 0; |
995c762ea reiserfs: rename ... |
1985 1986 |
unsigned long blocksize = inode->i_sb->s_blocksize; unsigned long offset = (inode->i_size) & (PAGE_CACHE_SIZE - 1); |
bd4c625c0 reiserfs: run scr... |
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 |
struct buffer_head *bh; struct buffer_head *head; struct page *page; int error; /* we know that we are only called with inode->i_size > 0. ** we also know that a file tail can never be as big as a block ** If i_size % blocksize == 0, our file is currently block aligned ** and it won't need converting or zeroing after a truncate. */ if ((offset & (blocksize - 1)) == 0) { return -ENOENT; } |
995c762ea reiserfs: rename ... |
2000 |
page = grab_cache_page(inode->i_mapping, index); |
bd4c625c0 reiserfs: run scr... |
2001 2002 2003 2004 2005 2006 |
error = -ENOMEM; if (!page) { goto out; } /* start within the page of the last block in the file */ start = (offset / blocksize) * blocksize; |
ebdec241d fs: kill block_pr... |
2007 |
error = __block_write_begin(page, start, offset - start, |
bd4c625c0 reiserfs: run scr... |
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 |
reiserfs_get_block_create_0); if (error) goto unlock; head = page_buffers(page); bh = head; do { if (pos >= start) { break; } bh = bh->b_this_page; pos += blocksize; } while (bh != head); if (!buffer_uptodate(bh)) { /* note, this should never happen, prepare_write should ** be taking care of this for us. If the buffer isn't up to date, ** I've screwed up the code to find the buffer, or the code to ** call prepare_write */ |
995c762ea reiserfs: rename ... |
2028 |
reiserfs_error(inode->i_sb, "clm-6000", |
0030b6457 reiserfs: use rei... |
2029 |
"error reading block %lu", bh->b_blocknr); |
bd4c625c0 reiserfs: run scr... |
2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 |
error = -EIO; goto unlock; } *bh_result = bh; *page_result = page; out: return error; unlock: unlock_page(page); page_cache_release(page); return error; |
1da177e4c Linux-2.6.12-rc2 |
2043 2044 2045 2046 2047 2048 2049 2050 |
} /* ** vfs version of truncate file. Must NOT be called with ** a transaction already started. ** ** some code taken from block_truncate_page */ |
995c762ea reiserfs: rename ... |
2051 |
int reiserfs_truncate_file(struct inode *inode, int update_timestamps) |
bd4c625c0 reiserfs: run scr... |
2052 2053 2054 |
{ struct reiserfs_transaction_handle th; /* we want the offset for the first byte after the end of the file */ |
995c762ea reiserfs: rename ... |
2055 2056 |
unsigned long offset = inode->i_size & (PAGE_CACHE_SIZE - 1); unsigned blocksize = inode->i_sb->s_blocksize; |
bd4c625c0 reiserfs: run scr... |
2057 2058 2059 2060 |
unsigned length; struct page *page = NULL; int error; struct buffer_head *bh = NULL; |
249960496 [PATCH] reiserfs:... |
2061 |
int err2; |
22c963add kill-the-BKL/reis... |
2062 |
int lock_depth; |
bd4c625c0 reiserfs: run scr... |
2063 |
|
22c963add kill-the-BKL/reis... |
2064 |
lock_depth = reiserfs_write_lock_once(inode->i_sb); |
bd4c625c0 reiserfs: run scr... |
2065 |
|
995c762ea reiserfs: rename ... |
2066 2067 2068 |
if (inode->i_size > 0) { error = grab_tail_page(inode, &page, &bh); if (error) { |
0222e6571 reiserfs: strip t... |
2069 |
// -ENOENT means we truncated past the end of the file, |
bd4c625c0 reiserfs: run scr... |
2070 2071 2072 |
// and get_block_create_0 could not find a block to read in, // which is ok. if (error != -ENOENT) |
995c762ea reiserfs: rename ... |
2073 |
reiserfs_error(inode->i_sb, "clm-6001", |
0030b6457 reiserfs: use rei... |
2074 2075 |
"grab_tail_page failed %d", error); |
bd4c625c0 reiserfs: run scr... |
2076 2077 2078 2079 |
page = NULL; bh = NULL; } } |
1da177e4c Linux-2.6.12-rc2 |
2080 |
|
0222e6571 reiserfs: strip t... |
2081 2082 2083 2084 2085 |
/* so, if page != NULL, we have a buffer head for the offset at ** the end of the file. if the bh is mapped, and bh->b_blocknr != 0, ** then we have an unformatted node. Otherwise, we have a direct item, ** and no zeroing is required on disk. We zero after the truncate, ** because the truncate might pack the item anyway |
bd4c625c0 reiserfs: run scr... |
2086 |
** (it will unmap bh if it packs). |
1da177e4c Linux-2.6.12-rc2 |
2087 |
*/ |
bd4c625c0 reiserfs: run scr... |
2088 2089 2090 |
/* it is enough to reserve space in transaction for 2 balancings: one for "save" link adding and another for the first cut_from_item. 1 is for update_sd */ |
995c762ea reiserfs: rename ... |
2091 |
error = journal_begin(&th, inode->i_sb, |
bd4c625c0 reiserfs: run scr... |
2092 2093 2094 |
JOURNAL_PER_BALANCE_CNT * 2 + 1); if (error) goto out; |
995c762ea reiserfs: rename ... |
2095 |
reiserfs_update_inode_transaction(inode); |
bd4c625c0 reiserfs: run scr... |
2096 2097 2098 2099 |
if (update_timestamps) /* we are doing real truncate: if the system crashes before the last transaction of truncating gets committed - on reboot the file either appears truncated properly or not truncated at all */ |
995c762ea reiserfs: rename ... |
2100 2101 |
add_save_link(&th, inode, 1); err2 = reiserfs_do_truncate(&th, inode, page, update_timestamps); |
bd4c625c0 reiserfs: run scr... |
2102 |
error = |
995c762ea reiserfs: rename ... |
2103 |
journal_end(&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 2 + 1); |
bd4c625c0 reiserfs: run scr... |
2104 2105 |
if (error) goto out; |
249960496 [PATCH] reiserfs:... |
2106 2107 2108 2109 2110 2111 |
/* check reiserfs_do_truncate after ending the transaction */ if (err2) { error = err2; goto out; } |
bd4c625c0 reiserfs: run scr... |
2112 |
if (update_timestamps) { |
995c762ea reiserfs: rename ... |
2113 |
error = remove_save_link(inode, 1 /* truncate */); |
bd4c625c0 reiserfs: run scr... |
2114 2115 2116 2117 2118 2119 2120 2121 |
if (error) goto out; } if (page) { length = offset & (blocksize - 1); /* if we are not on a block boundary */ if (length) { |
bd4c625c0 reiserfs: run scr... |
2122 |
length = blocksize - length; |
eebd2aa35 Pagecache zeroing... |
2123 |
zero_user(page, offset, length); |
bd4c625c0 reiserfs: run scr... |
2124 2125 2126 2127 2128 2129 2130 |
if (buffer_mapped(bh) && bh->b_blocknr != 0) { mark_buffer_dirty(bh); } } unlock_page(page); page_cache_release(page); } |
22c963add kill-the-BKL/reis... |
2131 |
reiserfs_write_unlock_once(inode->i_sb, lock_depth); |
bd4c625c0 reiserfs: run scr... |
2132 2133 2134 2135 2136 2137 |
return 0; out: if (page) { unlock_page(page); page_cache_release(page); } |
22c963add kill-the-BKL/reis... |
2138 2139 |
reiserfs_write_unlock_once(inode->i_sb, lock_depth); |
bd4c625c0 reiserfs: run scr... |
2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 |
return error; } static int map_block_for_writepage(struct inode *inode, struct buffer_head *bh_result, unsigned long block) { struct reiserfs_transaction_handle th; int fs_gen; struct item_head tmp_ih; struct item_head *ih; struct buffer_head *bh; __le32 *item; struct cpu_key key; INITIALIZE_PATH(path); int pos_in_item; int jbegin_count = JOURNAL_PER_BALANCE_CNT; |
7729ac5ef [PATCH] reiserfs:... |
2157 |
loff_t byte_offset = ((loff_t)block << inode->i_sb->s_blocksize_bits)+1; |
bd4c625c0 reiserfs: run scr... |
2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 |
int retval; int use_get_block = 0; int bytes_copied = 0; int copy_size; int trans_running = 0; /* catch places below that try to log something without starting a trans */ th.t_trans_id = 0; if (!buffer_uptodate(bh_result)) { return -EIO; } kmap(bh_result->b_page); start_over: reiserfs_write_lock(inode->i_sb); make_cpu_key(&key, inode, byte_offset, TYPE_ANY, 3); research: retval = search_for_position_by_key(inode->i_sb, &key, &path); if (retval != POSITION_FOUND) { use_get_block = 1; goto out; } bh = get_last_bh(&path); ih = get_ih(&path); item = get_item(&path); pos_in_item = path.pos_in_item; /* we've found an unformatted node */ if (indirect_item_found(retval, ih)) { if (bytes_copied > 0) { |
45b03d5e8 reiserfs: rework ... |
2191 2192 |
reiserfs_warning(inode->i_sb, "clm-6002", "bytes_copied %d", bytes_copied); |
bd4c625c0 reiserfs: run scr... |
2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 |
} if (!get_block_num(item, pos_in_item)) { /* crap, we are writing to a hole */ use_get_block = 1; goto out; } set_block_dev_mapped(bh_result, get_block_num(item, pos_in_item), inode); } else if (is_direct_le_ih(ih)) { char *p; p = page_address(bh_result->b_page); p += (byte_offset - 1) & (PAGE_CACHE_SIZE - 1); copy_size = ih_item_len(ih) - pos_in_item; fs_gen = get_generation(inode->i_sb); copy_item_head(&tmp_ih, ih); if (!trans_running) { /* vs-3050 is gone, no need to drop the path */ retval = journal_begin(&th, inode->i_sb, jbegin_count); if (retval) goto out; reiserfs_update_inode_transaction(inode); trans_running = 1; if (fs_changed(fs_gen, inode->i_sb) && item_moved(&tmp_ih, &path)) { reiserfs_restore_prepared_buffer(inode->i_sb, bh); goto research; } } reiserfs_prepare_for_journal(inode->i_sb, bh, 1); if (fs_changed(fs_gen, inode->i_sb) && item_moved(&tmp_ih, &path)) { reiserfs_restore_prepared_buffer(inode->i_sb, bh); goto research; } memcpy(B_I_PITEM(bh, ih) + pos_in_item, p + bytes_copied, copy_size); journal_mark_dirty(&th, inode->i_sb, bh); bytes_copied += copy_size; set_block_dev_mapped(bh_result, 0, inode); /* are there still bytes left? */ if (bytes_copied < bh_result->b_size && (byte_offset + bytes_copied) < inode->i_size) { set_cpu_key_k_offset(&key, cpu_key_k_offset(&key) + copy_size); goto research; } } else { |
45b03d5e8 reiserfs: rework ... |
2249 2250 |
reiserfs_warning(inode->i_sb, "clm-6003", "bad item inode %lu", inode->i_ino); |
bd4c625c0 reiserfs: run scr... |
2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 |
retval = -EIO; goto out; } retval = 0; out: pathrelse(&path); if (trans_running) { int err = journal_end(&th, inode->i_sb, jbegin_count); if (err) retval = err; trans_running = 0; } reiserfs_write_unlock(inode->i_sb); /* this is where we fill in holes in the file. */ if (use_get_block) { retval = reiserfs_get_block(inode, block, bh_result, |
1b1dcc1b5 [PATCH] mutex sub... |
2269 |
GET_BLOCK_CREATE | GET_BLOCK_NO_IMUX |
bd4c625c0 reiserfs: run scr... |
2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 |
| GET_BLOCK_NO_DANGLE); if (!retval) { if (!buffer_mapped(bh_result) || bh_result->b_blocknr == 0) { /* get_block failed to find a mapped unformatted node. */ use_get_block = 0; goto start_over; } } } kunmap(bh_result->b_page); if (!retval && buffer_mapped(bh_result) && bh_result->b_blocknr == 0) { /* we've copied data from the page into the direct item, so the * buffer in the page is now clean, mark it to reflect that. */ lock_buffer(bh_result); clear_buffer_dirty(bh_result); unlock_buffer(bh_result); } return retval; |
1da177e4c Linux-2.6.12-rc2 |
2291 |
} |
0222e6571 reiserfs: strip t... |
2292 2293 |
/* * mason@suse.com: updated in 2.5.54 to follow the same general io |
1da177e4c Linux-2.6.12-rc2 |
2294 2295 2296 |
* start/recovery path as __block_write_full_page, along with special * code to handle reiserfs tails. */ |
bd4c625c0 reiserfs: run scr... |
2297 2298 2299 2300 2301 2302 2303 |
static int reiserfs_write_full_page(struct page *page, struct writeback_control *wbc) { struct inode *inode = page->mapping->host; unsigned long end_index = inode->i_size >> PAGE_CACHE_SHIFT; int error = 0; unsigned long block; |
b4c76fa72 [PATCH] reiserfs_... |
2304 |
sector_t last_block; |
bd4c625c0 reiserfs: run scr... |
2305 2306 2307 2308 2309 2310 2311 2312 |
struct buffer_head *head, *bh; int partial = 0; int nr = 0; int checked = PageChecked(page); struct reiserfs_transaction_handle th; struct super_block *s = inode->i_sb; int bh_per_page = PAGE_CACHE_SIZE / s->s_blocksize; th.t_trans_id = 0; |
e0e851cf3 [PATCH] reiserfs:... |
2313 2314 2315 2316 2317 2318 |
/* no logging allowed when nonblocking or from PF_MEMALLOC */ if (checked && (current->flags & PF_MEMALLOC)) { redirty_page_for_writepage(wbc, page); unlock_page(page); return 0; } |
bd4c625c0 reiserfs: run scr... |
2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 |
/* The page dirty bit is cleared before writepage is called, which * means we have to tell create_empty_buffers to make dirty buffers * The page really should be up to date at this point, so tossing * in the BH_Uptodate is just a sanity check. */ if (!page_has_buffers(page)) { create_empty_buffers(page, s->s_blocksize, (1 << BH_Dirty) | (1 << BH_Uptodate)); } head = page_buffers(page); |
1da177e4c Linux-2.6.12-rc2 |
2329 |
|
bd4c625c0 reiserfs: run scr... |
2330 2331 2332 2333 |
/* last page in the file, zero out any contents past the ** last byte in the file */ if (page->index >= end_index) { |
bd4c625c0 reiserfs: run scr... |
2334 2335 2336 2337 2338 2339 2340 2341 |
unsigned last_offset; last_offset = inode->i_size & (PAGE_CACHE_SIZE - 1); /* no file contents in this page */ if (page->index >= end_index + 1 || !last_offset) { unlock_page(page); return 0; } |
eebd2aa35 Pagecache zeroing... |
2342 |
zero_user_segment(page, last_offset, PAGE_CACHE_SIZE); |
1da177e4c Linux-2.6.12-rc2 |
2343 |
} |
bd4c625c0 reiserfs: run scr... |
2344 2345 |
bh = head; block = page->index << (PAGE_CACHE_SHIFT - s->s_blocksize_bits); |
b4c76fa72 [PATCH] reiserfs_... |
2346 |
last_block = (i_size_read(inode) - 1) >> inode->i_blkbits; |
bd4c625c0 reiserfs: run scr... |
2347 2348 |
/* first map all the buffers, logging any direct items we find */ do { |
b4c76fa72 [PATCH] reiserfs_... |
2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 |
if (block > last_block) { /* * This can happen when the block size is less than * the page size. The corresponding bytes in the page * were zero filled above */ clear_buffer_dirty(bh); set_buffer_uptodate(bh); } else if ((checked || buffer_dirty(bh)) && (!buffer_mapped(bh) || (buffer_mapped(bh) |
bd4c625c0 reiserfs: run scr... |
2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 |
&& bh->b_blocknr == 0))) { /* not mapped yet, or it points to a direct item, search * the btree for the mapping info, and log any direct * items found */ if ((error = map_block_for_writepage(inode, bh, block))) { goto fail; } } bh = bh->b_this_page; block++; } while (bh != head); /* * we start the transaction after map_block_for_writepage, * because it can create holes in the file (an unbounded operation). * starting it here, we can make a reliable estimate for how many * blocks we're going to log |
1da177e4c Linux-2.6.12-rc2 |
2378 |
*/ |
bd4c625c0 reiserfs: run scr... |
2379 2380 2381 2382 2383 2384 2385 2386 2387 |
if (checked) { ClearPageChecked(page); reiserfs_write_lock(s); error = journal_begin(&th, s, bh_per_page + 1); if (error) { reiserfs_write_unlock(s); goto fail; } reiserfs_update_inode_transaction(inode); |
1da177e4c Linux-2.6.12-rc2 |
2388 |
} |
bd4c625c0 reiserfs: run scr... |
2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 |
/* now go through and lock any dirty buffers on the page */ do { get_bh(bh); if (!buffer_mapped(bh)) continue; if (buffer_mapped(bh) && bh->b_blocknr == 0) continue; if (checked) { reiserfs_prepare_for_journal(s, bh, 1); journal_mark_dirty(&th, s, bh); continue; } /* from this point on, we know the buffer is mapped to a * real block and not a direct item */ |
1b430beee writeback: remove... |
2405 |
if (wbc->sync_mode != WB_SYNC_NONE) { |
bd4c625c0 reiserfs: run scr... |
2406 2407 |
lock_buffer(bh); } else { |
ca5de404f fs: rename buffer... |
2408 |
if (!trylock_buffer(bh)) { |
bd4c625c0 reiserfs: run scr... |
2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 |
redirty_page_for_writepage(wbc, page); continue; } } if (test_clear_buffer_dirty(bh)) { mark_buffer_async_write(bh); } else { unlock_buffer(bh); } } while ((bh = bh->b_this_page) != head); if (checked) { error = journal_end(&th, s, bh_per_page + 1); reiserfs_write_unlock(s); if (error) goto fail; |
1da177e4c Linux-2.6.12-rc2 |
2425 |
} |
bd4c625c0 reiserfs: run scr... |
2426 2427 2428 |
BUG_ON(PageWriteback(page)); set_page_writeback(page); unlock_page(page); |
1da177e4c Linux-2.6.12-rc2 |
2429 |
|
bd4c625c0 reiserfs: run scr... |
2430 |
/* |
0222e6571 reiserfs: strip t... |
2431 |
* since any buffer might be the only dirty buffer on the page, |
bd4c625c0 reiserfs: run scr... |
2432 2433 |
* the first submit_bh can bring the page out of writeback. * be careful with the buffers. |
1da177e4c Linux-2.6.12-rc2 |
2434 |
*/ |
1da177e4c Linux-2.6.12-rc2 |
2435 |
do { |
bd4c625c0 reiserfs: run scr... |
2436 2437 2438 2439 2440 2441 2442 2443 |
struct buffer_head *next = bh->b_this_page; if (buffer_async_write(bh)) { submit_bh(WRITE, bh); nr++; } put_bh(bh); bh = next; } while (bh != head); |
1da177e4c Linux-2.6.12-rc2 |
2444 |
|
bd4c625c0 reiserfs: run scr... |
2445 2446 2447 2448 2449 |
error = 0; done: if (nr == 0) { /* * if this page only had a direct item, it is very possible for |
0222e6571 reiserfs: strip t... |
2450 2451 |
* no io to be required without there being an error. Or, * someone else could have locked them and sent them down the |
bd4c625c0 reiserfs: run scr... |
2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 |
* pipe without locking the page */ bh = head; do { if (!buffer_uptodate(bh)) { partial = 1; break; } bh = bh->b_this_page; } while (bh != head); if (!partial) SetPageUptodate(page); end_page_writeback(page); } return error; |
1da177e4c Linux-2.6.12-rc2 |
2467 |
|
bd4c625c0 reiserfs: run scr... |
2468 2469 |
fail: /* catches various errors, we need to make sure any valid dirty blocks |
0222e6571 reiserfs: strip t... |
2470 |
* get to the media. The page is currently locked and not marked for |
bd4c625c0 reiserfs: run scr... |
2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 |
* writeback */ ClearPageUptodate(page); bh = head; do { get_bh(bh); if (buffer_mapped(bh) && buffer_dirty(bh) && bh->b_blocknr) { lock_buffer(bh); mark_buffer_async_write(bh); } else { /* * clear any dirty bits that might have come from getting * attached to a dirty page */ clear_buffer_dirty(bh); } bh = bh->b_this_page; } while (bh != head); SetPageError(page); BUG_ON(PageWriteback(page)); set_page_writeback(page); unlock_page(page); do { struct buffer_head *next = bh->b_this_page; if (buffer_async_write(bh)) { clear_buffer_dirty(bh); submit_bh(WRITE, bh); nr++; } put_bh(bh); bh = next; } while (bh != head); goto done; |
1da177e4c Linux-2.6.12-rc2 |
2504 |
} |
bd4c625c0 reiserfs: run scr... |
2505 2506 2507 2508 |
static int reiserfs_readpage(struct file *f, struct page *page) { return block_read_full_page(page, reiserfs_get_block); } |
1da177e4c Linux-2.6.12-rc2 |
2509 |
|
bd4c625c0 reiserfs: run scr... |
2510 |
static int reiserfs_writepage(struct page *page, struct writeback_control *wbc) |
1da177e4c Linux-2.6.12-rc2 |
2511 |
{ |
bd4c625c0 reiserfs: run scr... |
2512 2513 2514 |
struct inode *inode = page->mapping->host; reiserfs_wait_on_write_block(inode->i_sb); return reiserfs_write_full_page(page, wbc); |
1da177e4c Linux-2.6.12-rc2 |
2515 |
} |
ec8e2f746 reiserfs: truncat... |
2516 2517 2518 2519 2520 |
static void reiserfs_truncate_failed_write(struct inode *inode) { truncate_inode_pages(inode->i_mapping, inode->i_size); reiserfs_truncate_file(inode, 0); } |
ba9d8cec6 reiserfs: convert... |
2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 |
static int reiserfs_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata) { struct inode *inode; struct page *page; pgoff_t index; int ret; int old_ref = 0; |
f7557e8f7 reiserfs: use gen... |
2531 2532 2533 2534 2535 2536 2537 |
inode = mapping->host; *fsdata = 0; if (flags & AOP_FLAG_CONT_EXPAND && (pos & (inode->i_sb->s_blocksize - 1)) == 0) { pos ++; *fsdata = (void *)(unsigned long)flags; } |
ba9d8cec6 reiserfs: convert... |
2538 |
index = pos >> PAGE_CACHE_SHIFT; |
54566b2c1 fs: symlink write... |
2539 |
page = grab_cache_page_write_begin(mapping, index, flags); |
ba9d8cec6 reiserfs: convert... |
2540 2541 2542 |
if (!page) return -ENOMEM; *pagep = page; |
ba9d8cec6 reiserfs: convert... |
2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 |
reiserfs_wait_on_write_block(inode->i_sb); fix_tail_page_for_writing(page); if (reiserfs_transaction_running(inode->i_sb)) { struct reiserfs_transaction_handle *th; th = (struct reiserfs_transaction_handle *)current-> journal_info; BUG_ON(!th->t_refcount); BUG_ON(!th->t_trans_id); old_ref = th->t_refcount; th->t_refcount++; } |
6e1db88d5 introduce __block... |
2554 |
ret = __block_write_begin(page, pos, len, reiserfs_get_block); |
ba9d8cec6 reiserfs: convert... |
2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 |
if (ret && reiserfs_transaction_running(inode->i_sb)) { struct reiserfs_transaction_handle *th = current->journal_info; /* this gets a little ugly. If reiserfs_get_block returned an * error and left a transacstion running, we've got to close it, * and we've got to free handle if it was a persistent transaction. * * But, if we had nested into an existing transaction, we need * to just drop the ref count on the handle. * * If old_ref == 0, the transaction is from reiserfs_get_block, * and it was a persistent trans. Otherwise, it was nested above. */ if (th->t_refcount > old_ref) { if (old_ref) th->t_refcount--; else { int err; reiserfs_write_lock(inode->i_sb); err = reiserfs_end_persistent_transaction(th); reiserfs_write_unlock(inode->i_sb); if (err) ret = err; } } } if (ret) { unlock_page(page); page_cache_release(page); |
ec8e2f746 reiserfs: truncat... |
2583 2584 |
/* Truncate allocated blocks */ reiserfs_truncate_failed_write(inode); |
ba9d8cec6 reiserfs: convert... |
2585 2586 2587 |
} return ret; } |
ebdec241d fs: kill block_pr... |
2588 |
int __reiserfs_write_begin(struct page *page, unsigned from, unsigned len) |
bd4c625c0 reiserfs: run scr... |
2589 2590 2591 2592 |
{ struct inode *inode = page->mapping->host; int ret; int old_ref = 0; |
8ebc42323 reiserfs: kill-th... |
2593 |
reiserfs_write_unlock(inode->i_sb); |
bd4c625c0 reiserfs: run scr... |
2594 |
reiserfs_wait_on_write_block(inode->i_sb); |
8ebc42323 reiserfs: kill-th... |
2595 |
reiserfs_write_lock(inode->i_sb); |
bd4c625c0 reiserfs: run scr... |
2596 2597 2598 2599 2600 2601 2602 2603 2604 |
fix_tail_page_for_writing(page); if (reiserfs_transaction_running(inode->i_sb)) { struct reiserfs_transaction_handle *th; th = (struct reiserfs_transaction_handle *)current-> journal_info; BUG_ON(!th->t_refcount); BUG_ON(!th->t_trans_id); old_ref = th->t_refcount; th->t_refcount++; |
1da177e4c Linux-2.6.12-rc2 |
2605 |
} |
1da177e4c Linux-2.6.12-rc2 |
2606 |
|
ebdec241d fs: kill block_pr... |
2607 |
ret = __block_write_begin(page, from, len, reiserfs_get_block); |
bd4c625c0 reiserfs: run scr... |
2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 |
if (ret && reiserfs_transaction_running(inode->i_sb)) { struct reiserfs_transaction_handle *th = current->journal_info; /* this gets a little ugly. If reiserfs_get_block returned an * error and left a transacstion running, we've got to close it, * and we've got to free handle if it was a persistent transaction. * * But, if we had nested into an existing transaction, we need * to just drop the ref count on the handle. * * If old_ref == 0, the transaction is from reiserfs_get_block, * and it was a persistent trans. Otherwise, it was nested above. */ if (th->t_refcount > old_ref) { if (old_ref) th->t_refcount--; else { int err; reiserfs_write_lock(inode->i_sb); err = reiserfs_end_persistent_transaction(th); reiserfs_write_unlock(inode->i_sb); if (err) ret = err; } } } return ret; |
1da177e4c Linux-2.6.12-rc2 |
2634 |
|
bd4c625c0 reiserfs: run scr... |
2635 |
} |
1da177e4c Linux-2.6.12-rc2 |
2636 |
|
bd4c625c0 reiserfs: run scr... |
2637 2638 2639 |
static sector_t reiserfs_aop_bmap(struct address_space *as, sector_t block) { return generic_block_bmap(as, block, reiserfs_bmap); |
1da177e4c Linux-2.6.12-rc2 |
2640 |
} |
ba9d8cec6 reiserfs: convert... |
2641 2642 2643 2644 2645 2646 2647 2648 2649 |
static int reiserfs_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata) { struct inode *inode = page->mapping->host; int ret = 0; int update_sd = 0; struct reiserfs_transaction_handle *th; unsigned start; |
d6f5b0aa0 kill-the-bkl/reis... |
2650 2651 |
int lock_depth = 0; bool locked = false; |
ba9d8cec6 reiserfs: convert... |
2652 |
|
f7557e8f7 reiserfs: use gen... |
2653 2654 |
if ((unsigned long)fsdata & AOP_FLAG_CONT_EXPAND) pos ++; |
ba9d8cec6 reiserfs: convert... |
2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 |
reiserfs_wait_on_write_block(inode->i_sb); if (reiserfs_transaction_running(inode->i_sb)) th = current->journal_info; else th = NULL; start = pos & (PAGE_CACHE_SIZE - 1); if (unlikely(copied < len)) { if (!PageUptodate(page)) copied = 0; page_zero_new_buffers(page, start + copied, start + len); } flush_dcache_page(page); reiserfs_commit_page(inode, page, start, start + copied); /* generic_commit_write does this for us, but does not update the ** transaction tracking stuff when the size changes. So, we have ** to do the i_size updates here. */ |
ec8e2f746 reiserfs: truncat... |
2677 |
if (pos + copied > inode->i_size) { |
ba9d8cec6 reiserfs: convert... |
2678 |
struct reiserfs_transaction_handle myth; |
d6f5b0aa0 kill-the-bkl/reis... |
2679 2680 |
lock_depth = reiserfs_write_lock_once(inode->i_sb); locked = true; |
ba9d8cec6 reiserfs: convert... |
2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 |
/* If the file have grown beyond the border where it can have a tail, unmark it as needing a tail packing */ if ((have_large_tails(inode->i_sb) && inode->i_size > i_block_size(inode) * 4) || (have_small_tails(inode->i_sb) && inode->i_size > i_block_size(inode))) REISERFS_I(inode)->i_flags &= ~i_pack_on_close_mask; ret = journal_begin(&myth, inode->i_sb, 1); |
d6f5b0aa0 kill-the-bkl/reis... |
2691 |
if (ret) |
ba9d8cec6 reiserfs: convert... |
2692 |
goto journal_error; |
d6f5b0aa0 kill-the-bkl/reis... |
2693 |
|
ba9d8cec6 reiserfs: convert... |
2694 |
reiserfs_update_inode_transaction(inode); |
ec8e2f746 reiserfs: truncat... |
2695 |
inode->i_size = pos + copied; |
ba9d8cec6 reiserfs: convert... |
2696 2697 2698 2699 2700 2701 2702 2703 2704 |
/* * this will just nest into our transaction. It's important * to use mark_inode_dirty so the inode gets pushed around on the * dirty lists, and so that O_SYNC works as expected */ mark_inode_dirty(inode); reiserfs_update_sd(&myth, inode); update_sd = 1; ret = journal_end(&myth, inode->i_sb, 1); |
ba9d8cec6 reiserfs: convert... |
2705 2706 2707 2708 |
if (ret) goto journal_error; } if (th) { |
d6f5b0aa0 kill-the-bkl/reis... |
2709 2710 2711 2712 |
if (!locked) { lock_depth = reiserfs_write_lock_once(inode->i_sb); locked = true; } |
ba9d8cec6 reiserfs: convert... |
2713 2714 2715 |
if (!update_sd) mark_inode_dirty(inode); ret = reiserfs_end_persistent_transaction(th); |
ba9d8cec6 reiserfs: convert... |
2716 2717 2718 2719 2720 |
if (ret) goto out; } out: |
d6f5b0aa0 kill-the-bkl/reis... |
2721 2722 |
if (locked) reiserfs_write_unlock_once(inode->i_sb, lock_depth); |
ba9d8cec6 reiserfs: convert... |
2723 2724 |
unlock_page(page); page_cache_release(page); |
ec8e2f746 reiserfs: truncat... |
2725 2726 2727 |
if (pos + len > inode->i_size) reiserfs_truncate_failed_write(inode); |
ba9d8cec6 reiserfs: convert... |
2728 2729 2730 |
return ret == 0 ? copied : ret; journal_error: |
d6f5b0aa0 kill-the-bkl/reis... |
2731 2732 |
reiserfs_write_unlock_once(inode->i_sb, lock_depth); locked = false; |
ba9d8cec6 reiserfs: convert... |
2733 |
if (th) { |
ba9d8cec6 reiserfs: convert... |
2734 2735 2736 |
if (!update_sd) reiserfs_update_sd(th, inode); ret = reiserfs_end_persistent_transaction(th); |
ba9d8cec6 reiserfs: convert... |
2737 |
} |
ba9d8cec6 reiserfs: convert... |
2738 2739 2740 2741 2742 |
goto out; } int reiserfs_commit_write(struct file *f, struct page *page, unsigned from, unsigned to) |
bd4c625c0 reiserfs: run scr... |
2743 2744 2745 2746 2747 2748 |
{ struct inode *inode = page->mapping->host; loff_t pos = ((loff_t) page->index << PAGE_CACHE_SHIFT) + to; int ret = 0; int update_sd = 0; struct reiserfs_transaction_handle *th = NULL; |
8ebc42323 reiserfs: kill-th... |
2749 |
reiserfs_write_unlock(inode->i_sb); |
bd4c625c0 reiserfs: run scr... |
2750 |
reiserfs_wait_on_write_block(inode->i_sb); |
8ebc42323 reiserfs: kill-th... |
2751 |
reiserfs_write_lock(inode->i_sb); |
bd4c625c0 reiserfs: run scr... |
2752 2753 2754 2755 |
if (reiserfs_transaction_running(inode->i_sb)) { th = current->journal_info; } reiserfs_commit_page(inode, page, from, to); |
1da177e4c Linux-2.6.12-rc2 |
2756 |
|
bd4c625c0 reiserfs: run scr... |
2757 2758 2759 2760 2761 2762 |
/* generic_commit_write does this for us, but does not update the ** transaction tracking stuff when the size changes. So, we have ** to do the i_size updates here. */ if (pos > inode->i_size) { struct reiserfs_transaction_handle myth; |
bd4c625c0 reiserfs: run scr... |
2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 |
/* If the file have grown beyond the border where it can have a tail, unmark it as needing a tail packing */ if ((have_large_tails(inode->i_sb) && inode->i_size > i_block_size(inode) * 4) || (have_small_tails(inode->i_sb) && inode->i_size > i_block_size(inode))) REISERFS_I(inode)->i_flags &= ~i_pack_on_close_mask; ret = journal_begin(&myth, inode->i_sb, 1); |
7e9427705 kill-the-bkl/reis... |
2773 |
if (ret) |
bd4c625c0 reiserfs: run scr... |
2774 |
goto journal_error; |
7e9427705 kill-the-bkl/reis... |
2775 |
|
bd4c625c0 reiserfs: run scr... |
2776 2777 |
reiserfs_update_inode_transaction(inode); inode->i_size = pos; |
9f03783ce [PATCH] reiserfs:... |
2778 2779 2780 2781 2782 2783 |
/* * this will just nest into our transaction. It's important * to use mark_inode_dirty so the inode gets pushed around on the * dirty lists, and so that O_SYNC works as expected */ mark_inode_dirty(inode); |
bd4c625c0 reiserfs: run scr... |
2784 2785 2786 |
reiserfs_update_sd(&myth, inode); update_sd = 1; ret = journal_end(&myth, inode->i_sb, 1); |
bd4c625c0 reiserfs: run scr... |
2787 2788 2789 2790 |
if (ret) goto journal_error; } if (th) { |
bd4c625c0 reiserfs: run scr... |
2791 |
if (!update_sd) |
9f03783ce [PATCH] reiserfs:... |
2792 |
mark_inode_dirty(inode); |
bd4c625c0 reiserfs: run scr... |
2793 |
ret = reiserfs_end_persistent_transaction(th); |
bd4c625c0 reiserfs: run scr... |
2794 2795 2796 |
if (ret) goto out; } |
bd4c625c0 reiserfs: run scr... |
2797 2798 |
out: return ret; |
1da177e4c Linux-2.6.12-rc2 |
2799 |
|
bd4c625c0 reiserfs: run scr... |
2800 2801 |
journal_error: if (th) { |
bd4c625c0 reiserfs: run scr... |
2802 2803 2804 |
if (!update_sd) reiserfs_update_sd(th, inode); ret = reiserfs_end_persistent_transaction(th); |
bd4c625c0 reiserfs: run scr... |
2805 2806 2807 |
} return ret; |
1da177e4c Linux-2.6.12-rc2 |
2808 |
} |
bd4c625c0 reiserfs: run scr... |
2809 |
void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode) |
1da177e4c Linux-2.6.12-rc2 |
2810 |
{ |
bd4c625c0 reiserfs: run scr... |
2811 2812 2813 |
if (reiserfs_attrs(inode->i_sb)) { if (sd_attrs & REISERFS_SYNC_FL) inode->i_flags |= S_SYNC; |
1da177e4c Linux-2.6.12-rc2 |
2814 |
else |
bd4c625c0 reiserfs: run scr... |
2815 2816 2817 |
inode->i_flags &= ~S_SYNC; if (sd_attrs & REISERFS_IMMUTABLE_FL) inode->i_flags |= S_IMMUTABLE; |
1da177e4c Linux-2.6.12-rc2 |
2818 |
else |
bd4c625c0 reiserfs: run scr... |
2819 2820 2821 |
inode->i_flags &= ~S_IMMUTABLE; if (sd_attrs & REISERFS_APPEND_FL) inode->i_flags |= S_APPEND; |
1da177e4c Linux-2.6.12-rc2 |
2822 |
else |
bd4c625c0 reiserfs: run scr... |
2823 2824 2825 |
inode->i_flags &= ~S_APPEND; if (sd_attrs & REISERFS_NOATIME_FL) inode->i_flags |= S_NOATIME; |
1da177e4c Linux-2.6.12-rc2 |
2826 |
else |
bd4c625c0 reiserfs: run scr... |
2827 2828 |
inode->i_flags &= ~S_NOATIME; if (sd_attrs & REISERFS_NOTAIL_FL) |
1da177e4c Linux-2.6.12-rc2 |
2829 2830 2831 2832 2833 |
REISERFS_I(inode)->i_flags |= i_nopack_mask; else REISERFS_I(inode)->i_flags &= ~i_nopack_mask; } } |
bd4c625c0 reiserfs: run scr... |
2834 |
void i_attrs_to_sd_attrs(struct inode *inode, __u16 * sd_attrs) |
1da177e4c Linux-2.6.12-rc2 |
2835 |
{ |
bd4c625c0 reiserfs: run scr... |
2836 2837 |
if (reiserfs_attrs(inode->i_sb)) { if (inode->i_flags & S_IMMUTABLE) |
1da177e4c Linux-2.6.12-rc2 |
2838 2839 2840 |
*sd_attrs |= REISERFS_IMMUTABLE_FL; else *sd_attrs &= ~REISERFS_IMMUTABLE_FL; |
bd4c625c0 reiserfs: run scr... |
2841 |
if (inode->i_flags & S_SYNC) |
1da177e4c Linux-2.6.12-rc2 |
2842 2843 2844 |
*sd_attrs |= REISERFS_SYNC_FL; else *sd_attrs &= ~REISERFS_SYNC_FL; |
bd4c625c0 reiserfs: run scr... |
2845 |
if (inode->i_flags & S_NOATIME) |
1da177e4c Linux-2.6.12-rc2 |
2846 2847 2848 |
*sd_attrs |= REISERFS_NOATIME_FL; else *sd_attrs &= ~REISERFS_NOATIME_FL; |
bd4c625c0 reiserfs: run scr... |
2849 |
if (REISERFS_I(inode)->i_flags & i_nopack_mask) |
1da177e4c Linux-2.6.12-rc2 |
2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 |
*sd_attrs |= REISERFS_NOTAIL_FL; else *sd_attrs &= ~REISERFS_NOTAIL_FL; } } /* decide if this buffer needs to stay around for data logging or ordered ** write purposes */ static int invalidatepage_can_drop(struct inode *inode, struct buffer_head *bh) { |
bd4c625c0 reiserfs: run scr... |
2861 2862 |
int ret = 1; struct reiserfs_journal *j = SB_JOURNAL(inode->i_sb); |
d62b1b87a [PATCH] resierfs:... |
2863 |
lock_buffer(bh); |
bd4c625c0 reiserfs: run scr... |
2864 2865 2866 2867 2868 2869 |
spin_lock(&j->j_dirty_buffers_lock); if (!buffer_mapped(bh)) { goto free_jh; } /* the page is locked, and the only places that log a data buffer * also lock the page. |
1da177e4c Linux-2.6.12-rc2 |
2870 |
*/ |
bd4c625c0 reiserfs: run scr... |
2871 2872 2873 2874 2875 2876 2877 2878 |
if (reiserfs_file_data_log(inode)) { /* * very conservative, leave the buffer pinned if * anyone might need it. */ if (buffer_journaled(bh) || buffer_journal_dirty(bh)) { ret = 0; } |
d62b1b87a [PATCH] resierfs:... |
2879 |
} else if (buffer_dirty(bh)) { |
bd4c625c0 reiserfs: run scr... |
2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 |
struct reiserfs_journal_list *jl; struct reiserfs_jh *jh = bh->b_private; /* why is this safe? * reiserfs_setattr updates i_size in the on disk * stat data before allowing vmtruncate to be called. * * If buffer was put onto the ordered list for this * transaction, we know for sure either this transaction * or an older one already has updated i_size on disk, * and this ordered data won't be referenced in the file * if we crash. * * if the buffer was put onto the ordered list for an older * transaction, we need to leave it around */ if (jh && (jl = jh->jl) && jl != SB_JOURNAL(inode->i_sb)->j_current_jl) ret = 0; } free_jh: if (ret && bh->b_private) { reiserfs_free_jh(bh); } spin_unlock(&j->j_dirty_buffers_lock); |
d62b1b87a [PATCH] resierfs:... |
2905 |
unlock_buffer(bh); |
bd4c625c0 reiserfs: run scr... |
2906 |
return ret; |
1da177e4c Linux-2.6.12-rc2 |
2907 2908 2909 |
} /* clm -- taken from fs/buffer.c:block_invalidate_page */ |
2ff28e22b [PATCH] Make addr... |
2910 |
static void reiserfs_invalidatepage(struct page *page, unsigned long offset) |
1da177e4c Linux-2.6.12-rc2 |
2911 |
{ |
bd4c625c0 reiserfs: run scr... |
2912 2913 2914 2915 |
struct buffer_head *head, *bh, *next; struct inode *inode = page->mapping->host; unsigned int curr_off = 0; int ret = 1; |
1da177e4c Linux-2.6.12-rc2 |
2916 |
|
bd4c625c0 reiserfs: run scr... |
2917 |
BUG_ON(!PageLocked(page)); |
1da177e4c Linux-2.6.12-rc2 |
2918 |
|
bd4c625c0 reiserfs: run scr... |
2919 2920 |
if (offset == 0) ClearPageChecked(page); |
1da177e4c Linux-2.6.12-rc2 |
2921 |
|
bd4c625c0 reiserfs: run scr... |
2922 2923 2924 2925 2926 2927 2928 2929 |
if (!page_has_buffers(page)) goto out; head = page_buffers(page); bh = head; do { unsigned int next_off = curr_off + bh->b_size; next = bh->b_this_page; |
1da177e4c Linux-2.6.12-rc2 |
2930 |
|
bd4c625c0 reiserfs: run scr... |
2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 |
/* * is this block fully invalidated? */ if (offset <= curr_off) { if (invalidatepage_can_drop(inode, bh)) reiserfs_unmap_buffer(bh); else ret = 0; } curr_off = next_off; bh = next; } while (bh != head); |
1da177e4c Linux-2.6.12-rc2 |
2943 2944 |
/* |
bd4c625c0 reiserfs: run scr... |
2945 2946 2947 |
* We release buffers only if the entire page is being invalidated. * The get_block cached value has been unconditionally invalidated, * so real IO is not possible anymore. |
1da177e4c Linux-2.6.12-rc2 |
2948 |
*/ |
2ff28e22b [PATCH] Make addr... |
2949 |
if (!offset && ret) { |
bd4c625c0 reiserfs: run scr... |
2950 |
ret = try_to_release_page(page, 0); |
2ff28e22b [PATCH] Make addr... |
2951 2952 |
/* maybe should BUG_ON(!ret); - neilb */ } |
bd4c625c0 reiserfs: run scr... |
2953 |
out: |
2ff28e22b [PATCH] Make addr... |
2954 |
return; |
1da177e4c Linux-2.6.12-rc2 |
2955 |
} |
bd4c625c0 reiserfs: run scr... |
2956 2957 2958 2959 2960 2961 2962 2963 |
static int reiserfs_set_page_dirty(struct page *page) { struct inode *inode = page->mapping->host; if (reiserfs_file_data_log(inode)) { SetPageChecked(page); return __set_page_dirty_nobuffers(page); } return __set_page_dirty_buffers(page); |
1da177e4c Linux-2.6.12-rc2 |
2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 |
} /* * Returns 1 if the page's buffers were dropped. The page is locked. * * Takes j_dirty_buffers_lock to protect the b_assoc_buffers list_heads * in the buffers at page_buffers(page). * * even in -o notail mode, we can't be sure an old mount without -o notail * didn't create files with tails. */ |
27496a8c6 [PATCH] gfp_t: fs/* |
2975 |
static int reiserfs_releasepage(struct page *page, gfp_t unused_gfp_flags) |
1da177e4c Linux-2.6.12-rc2 |
2976 |
{ |
bd4c625c0 reiserfs: run scr... |
2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 |
struct inode *inode = page->mapping->host; struct reiserfs_journal *j = SB_JOURNAL(inode->i_sb); struct buffer_head *head; struct buffer_head *bh; int ret = 1; WARN_ON(PageChecked(page)); spin_lock(&j->j_dirty_buffers_lock); head = page_buffers(page); bh = head; do { if (bh->b_private) { if (!buffer_dirty(bh) && !buffer_locked(bh)) { reiserfs_free_jh(bh); } else { ret = 0; break; } } bh = bh->b_this_page; } while (bh != head); if (ret) ret = try_to_free_buffers(page); spin_unlock(&j->j_dirty_buffers_lock); return ret; |
1da177e4c Linux-2.6.12-rc2 |
3002 3003 3004 3005 3006 |
} /* We thank Mingming Cao for helping us understand in great detail what to do in this section of the code. */ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb, |
bd4c625c0 reiserfs: run scr... |
3007 3008 |
const struct iovec *iov, loff_t offset, unsigned long nr_segs) |
1da177e4c Linux-2.6.12-rc2 |
3009 |
{ |
bd4c625c0 reiserfs: run scr... |
3010 3011 |
struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; |
eafdc7d19 sort out blockdev... |
3012 |
ssize_t ret; |
1da177e4c Linux-2.6.12-rc2 |
3013 |
|
aacfc19c6 fs: simplify the ... |
3014 3015 |
ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs, reiserfs_get_blocks_direct_io); |
eafdc7d19 sort out blockdev... |
3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 |
/* * In case of error extending write may have instantiated a few * blocks outside i_size. Trim these off again. */ if (unlikely((rw & WRITE) && ret < 0)) { loff_t isize = i_size_read(inode); loff_t end = offset + iov_length(iov, nr_segs); if (end > isize) vmtruncate(inode, isize); } return ret; |
1da177e4c Linux-2.6.12-rc2 |
3030 |
} |
bd4c625c0 reiserfs: run scr... |
3031 3032 3033 |
int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = dentry->d_inode; |
cdd6fe6e2 reiserfs: turn of... |
3034 |
unsigned int ia_valid; |
5fe1533fd reiserfs: Fix rec... |
3035 3036 |
int depth; int error; |
cdd6fe6e2 reiserfs: turn of... |
3037 |
|
db78b877f always call inode... |
3038 3039 3040 |
error = inode_change_ok(inode, attr); if (error) return error; |
cdd6fe6e2 reiserfs: turn of... |
3041 3042 |
/* must be turned off for recursive notify_change calls */ ia_valid = attr->ia_valid &= ~(ATTR_KILL_SUID|ATTR_KILL_SGID); |
5fe1533fd reiserfs: Fix rec... |
3043 |
depth = reiserfs_write_lock_once(inode->i_sb); |
12755627b quota: unify quot... |
3044 |
if (is_quota_modification(inode, attr)) |
871a29315 dquot: cleanup dq... |
3045 |
dquot_initialize(inode); |
907f4554e dquot: move dquot... |
3046 |
|
12755627b quota: unify quot... |
3047 |
if (attr->ia_valid & ATTR_SIZE) { |
bd4c625c0 reiserfs: run scr... |
3048 3049 3050 3051 3052 3053 3054 3055 |
/* version 2 items will be caught by the s_maxbytes check ** done for us in vmtruncate */ if (get_inode_item_key_version(inode) == KEY_FORMAT_3_5 && attr->ia_size > MAX_NON_LFS) { error = -EFBIG; goto out; } |
562c72aa5 fs: move inode_di... |
3056 3057 |
inode_dio_wait(inode); |
bd4c625c0 reiserfs: run scr... |
3058 3059 |
/* fill in hole pointers in the expanding truncate case. */ if (attr->ia_size > inode->i_size) { |
f7557e8f7 reiserfs: use gen... |
3060 |
error = generic_cont_expand_simple(inode, attr->ia_size); |
bd4c625c0 reiserfs: run scr... |
3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 |
if (REISERFS_I(inode)->i_prealloc_count > 0) { int err; struct reiserfs_transaction_handle th; /* we're changing at most 2 bitmaps, inode + super */ err = journal_begin(&th, inode->i_sb, 4); if (!err) { reiserfs_discard_prealloc(&th, inode); err = journal_end(&th, inode->i_sb, 4); } if (err) error = err; } if (error) goto out; |
dd535a596 [PATCH] reiserfs:... |
3075 3076 3077 3078 3079 |
/* * file size is changed, ctime and mtime are * to be updated */ attr->ia_valid |= (ATTR_MTIME | ATTR_CTIME); |
1da177e4c Linux-2.6.12-rc2 |
3080 |
} |
1da177e4c Linux-2.6.12-rc2 |
3081 |
} |
1da177e4c Linux-2.6.12-rc2 |
3082 |
|
bd4c625c0 reiserfs: run scr... |
3083 3084 3085 |
if ((((attr->ia_valid & ATTR_UID) && (attr->ia_uid & ~0xffff)) || ((attr->ia_valid & ATTR_GID) && (attr->ia_gid & ~0xffff))) && (get_inode_sd_version(inode) == STAT_DATA_V1)) { |
1da177e4c Linux-2.6.12-rc2 |
3086 |
/* stat data of format v3.5 has 16 bit uid and gid */ |
bd4c625c0 reiserfs: run scr... |
3087 3088 3089 |
error = -EINVAL; goto out; } |
1da177e4c Linux-2.6.12-rc2 |
3090 |
|
1025774ce remove inode_setattr |
3091 3092 3093 3094 3095 3096 3097 3098 |
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) { struct reiserfs_transaction_handle th; int jbegin_count = 2 * (REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb) + REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb)) + 2; |
bd4c625c0 reiserfs: run scr... |
3099 |
|
1025774ce remove inode_setattr |
3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 |
error = reiserfs_chown_xattrs(inode, attr); if (error) return error; /* (user+group)*(old+new) structure - we count quota info and , inode write (sb, inode) */ error = journal_begin(&th, inode->i_sb, jbegin_count); if (error) goto out; error = dquot_transfer(inode, attr); if (error) { journal_end(&th, inode->i_sb, jbegin_count); goto out; |
108d3943c reiserfs: Relax t... |
3113 |
} |
1025774ce remove inode_setattr |
3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 |
/* Update corresponding info in inode so that everything is in * one transaction */ if (attr->ia_valid & ATTR_UID) inode->i_uid = attr->ia_uid; if (attr->ia_valid & ATTR_GID) inode->i_gid = attr->ia_gid; mark_inode_dirty(inode); error = journal_end(&th, inode->i_sb, jbegin_count); if (error) goto out; |
bd4c625c0 reiserfs: run scr... |
3125 |
} |
1da177e4c Linux-2.6.12-rc2 |
3126 |
|
1025774ce remove inode_setattr |
3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 |
/* * Relax the lock here, as it might truncate the * inode pages and wait for inode pages locks. * To release such page lock, the owner needs the * reiserfs lock */ reiserfs_write_unlock_once(inode->i_sb, depth); if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size != i_size_read(inode)) error = vmtruncate(inode, attr->ia_size); if (!error) { setattr_copy(inode, attr); mark_inode_dirty(inode); |
bd4c625c0 reiserfs: run scr... |
3141 |
} |
1025774ce remove inode_setattr |
3142 |
depth = reiserfs_write_lock_once(inode->i_sb); |
1da177e4c Linux-2.6.12-rc2 |
3143 |
|
bd4c625c0 reiserfs: run scr... |
3144 3145 3146 3147 |
if (!error && reiserfs_posixacl(inode->i_sb)) { if (attr->ia_valid & ATTR_MODE) error = reiserfs_acl_chmod(inode); } |
1da177e4c Linux-2.6.12-rc2 |
3148 |
|
bd4c625c0 reiserfs: run scr... |
3149 |
out: |
5fe1533fd reiserfs: Fix rec... |
3150 |
reiserfs_write_unlock_once(inode->i_sb, depth); |
bd4c625c0 reiserfs: run scr... |
3151 |
return error; |
1da177e4c Linux-2.6.12-rc2 |
3152 |
} |
f5e54d6e5 [PATCH] mark addr... |
3153 |
const struct address_space_operations reiserfs_address_space_operations = { |
bd4c625c0 reiserfs: run scr... |
3154 3155 3156 3157 3158 |
.writepage = reiserfs_writepage, .readpage = reiserfs_readpage, .readpages = reiserfs_readpages, .releasepage = reiserfs_releasepage, .invalidatepage = reiserfs_invalidatepage, |
ba9d8cec6 reiserfs: convert... |
3159 3160 |
.write_begin = reiserfs_write_begin, .write_end = reiserfs_write_end, |
bd4c625c0 reiserfs: run scr... |
3161 3162 3163 3164 |
.bmap = reiserfs_aop_bmap, .direct_IO = reiserfs_direct_IO, .set_page_dirty = reiserfs_set_page_dirty, }; |