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fs/reiserfs/namei.c
43.8 KB
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/* * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README * * Trivial changes by Alan Cox to remove EHASHCOLLISION for compatibility * * Trivial Changes: * Rights granted to Hans Reiser to redistribute under other terms providing * he accepts all liability including but not limited to patent, fitness * for purpose, and direct or indirect claims arising from failure to perform. * * NO WARRANTY */ |
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#include <linux/time.h> #include <linux/bitops.h> |
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#include <linux/slab.h> |
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#include "reiserfs.h" |
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#include "acl.h" |
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#include "xattr.h" |
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#include <linux/quotaops.h> |
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#define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) set_nlink(i, 1); } |
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#define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) drop_nlink(i); |
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|
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/* * directory item contains array of entry headers. This performs * binary search through that array */ |
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static int bin_search_in_dir_item(struct reiserfs_dir_entry *de, loff_t off) |
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{ |
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struct item_head *ih = de->de_ih; struct reiserfs_de_head *deh = de->de_deh; int rbound, lbound, j; lbound = 0; |
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rbound = ih_entry_count(ih) - 1; |
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for (j = (rbound + lbound) / 2; lbound <= rbound; j = (rbound + lbound) / 2) { if (off < deh_offset(deh + j)) { rbound = j - 1; continue; } if (off > deh_offset(deh + j)) { lbound = j + 1; continue; } |
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/* this is not name found, but matched third key component */ |
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de->de_entry_num = j; return NAME_FOUND; |
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} |
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|
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de->de_entry_num = lbound; return NAME_NOT_FOUND; |
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} |
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/* * comment? maybe something like set de to point to what the path points to? */ |
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static inline void set_de_item_location(struct reiserfs_dir_entry *de, |
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struct treepath *path) |
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{ |
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de->de_bh = get_last_bh(path); |
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de->de_ih = tp_item_head(path); |
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de->de_deh = B_I_DEH(de->de_bh, de->de_ih); de->de_item_num = PATH_LAST_POSITION(path); } |
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|
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/* * de_bh, de_ih, de_deh (points to first element of array), de_item_num is set */ |
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inline void set_de_name_and_namelen(struct reiserfs_dir_entry *de) |
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{ |
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struct reiserfs_de_head *deh = de->de_deh + de->de_entry_num; |
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|
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BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih)); |
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|
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de->de_entrylen = entry_length(de->de_bh, de->de_ih, de->de_entry_num); de->de_namelen = de->de_entrylen - (de_with_sd(deh) ? SD_SIZE : 0); |
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de->de_name = ih_item_body(de->de_bh, de->de_ih) + deh_location(deh); |
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if (de->de_name[de->de_namelen - 1] == 0) de->de_namelen = strlen(de->de_name); |
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} |
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/* what entry points to */ |
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static inline void set_de_object_key(struct reiserfs_dir_entry *de) |
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{ |
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BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih)); |
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de->de_dir_id = deh_dir_id(&de->de_deh[de->de_entry_num]); de->de_objectid = deh_objectid(&de->de_deh[de->de_entry_num]); |
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} |
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static inline void store_de_entry_key(struct reiserfs_dir_entry *de) |
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{ |
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struct reiserfs_de_head *deh = de->de_deh + de->de_entry_num; |
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BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih)); |
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/* store key of the found entry */ de->de_entry_key.version = KEY_FORMAT_3_5; de->de_entry_key.on_disk_key.k_dir_id = le32_to_cpu(de->de_ih->ih_key.k_dir_id); de->de_entry_key.on_disk_key.k_objectid = le32_to_cpu(de->de_ih->ih_key.k_objectid); |
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set_cpu_key_k_offset(&de->de_entry_key, deh_offset(deh)); set_cpu_key_k_type(&de->de_entry_key, TYPE_DIRENTRY); |
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} |
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/* * We assign a key to each directory item, and place multiple entries in a * single directory item. A directory item has a key equal to the key of * the first directory entry in it. * This function first calls search_by_key, then, if item whose first entry * matches is not found it looks for the entry inside directory item found * by search_by_key. Fills the path to the entry, and to the entry position * in the item */ |
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/* The function is NOT SCHEDULE-SAFE! */ |
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int search_by_entry_key(struct super_block *sb, const struct cpu_key *key, |
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struct treepath *path, struct reiserfs_dir_entry *de) |
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{ |
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int retval; retval = search_item(sb, key, path); switch (retval) { case ITEM_NOT_FOUND: if (!PATH_LAST_POSITION(path)) { |
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reiserfs_error(sb, "vs-7000", "search_by_key " "returned item position == 0"); |
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pathrelse(path); return IO_ERROR; } PATH_LAST_POSITION(path)--; case ITEM_FOUND: break; case IO_ERROR: return retval; default: pathrelse(path); |
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reiserfs_error(sb, "vs-7002", "no path to here"); |
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return IO_ERROR; |
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} |
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|
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set_de_item_location(de, path); |
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#ifdef CONFIG_REISERFS_CHECK |
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if (!is_direntry_le_ih(de->de_ih) || |
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COMP_SHORT_KEYS(&de->de_ih->ih_key, key)) { |
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print_block(de->de_bh, 0, -1, -1); |
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reiserfs_panic(sb, "vs-7005", "found item %h is not directory " "item or does not belong to the same directory " "as key %K", de->de_ih, key); |
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} #endif /* CONFIG_REISERFS_CHECK */ |
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/* * binary search in directory item by third component of the * key. sets de->de_entry_num of de */ |
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retval = bin_search_in_dir_item(de, cpu_key_k_offset(key)); path->pos_in_item = de->de_entry_num; if (retval != NAME_NOT_FOUND) { |
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/* * ugly, but rename needs de_bh, de_deh, de_name, * de_namelen, de_objectid set */ |
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set_de_name_and_namelen(de); set_de_object_key(de); } return retval; |
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} |
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/* Keyed 32-bit hash function using TEA in a Davis-Meyer function */ |
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/* * The third component is hashed, and you can choose from more than * one hash function. Per directory hashes are not yet implemented * but are thought about. This function should be moved to hashes.c * Jedi, please do so. -Hans */ |
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static __u32 get_third_component(struct super_block *s, const char *name, int len) |
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{ |
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__u32 res; if (!len || (len == 1 && name[0] == '.')) return DOT_OFFSET; if (len == 2 && name[0] == '.' && name[1] == '.') return DOT_DOT_OFFSET; res = REISERFS_SB(s)->s_hash_function(name, len); |
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/* take bits from 7-th to 30-th including both bounds */ |
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res = GET_HASH_VALUE(res); if (res == 0) |
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/* * needed to have no names before "." and ".." those have hash * value == 0 and generation conters 1 and 2 accordingly */ |
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res = 128; return res + MAX_GENERATION_NUMBER; |
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} |
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static int reiserfs_match(struct reiserfs_dir_entry *de, const char *name, int namelen) |
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{ |
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int retval = NAME_NOT_FOUND; |
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|
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if ((namelen == de->de_namelen) && !memcmp(de->de_name, name, de->de_namelen)) retval = (de_visible(de->de_deh + de->de_entry_num) ? NAME_FOUND : NAME_FOUND_INVISIBLE); |
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|
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return retval; |
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} |
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/* de's de_bh, de_ih, de_deh, de_item_num, de_entry_num are set already */ |
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/* used when hash collisions exist */ |
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|
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static int linear_search_in_dir_item(struct cpu_key *key, struct reiserfs_dir_entry *de, const char *name, int namelen) |
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{ |
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struct reiserfs_de_head *deh = de->de_deh; int retval; int i; |
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i = de->de_entry_num; |
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if (i == ih_entry_count(de->de_ih) || |
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GET_HASH_VALUE(deh_offset(deh + i)) != GET_HASH_VALUE(cpu_key_k_offset(key))) { i--; } |
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|
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RFALSE(de->de_deh != B_I_DEH(de->de_bh, de->de_ih), "vs-7010: array of entry headers not found"); |
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deh += i; |
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for (; i >= 0; i--, deh--) { |
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/* hash value does not match, no need to check whole name */ |
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if (GET_HASH_VALUE(deh_offset(deh)) != GET_HASH_VALUE(cpu_key_k_offset(key))) { |
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return NAME_NOT_FOUND; } |
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/* mark that this generation number is used */ |
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if (de->de_gen_number_bit_string) set_bit(GET_GENERATION_NUMBER(deh_offset(deh)), |
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de->de_gen_number_bit_string); |
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|
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/* calculate pointer to name and namelen */ |
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de->de_entry_num = i; set_de_name_and_namelen(de); |
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|
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/* * de's de_name, de_namelen, de_recordlen are set. * Fill the rest. */ |
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if ((retval = reiserfs_match(de, name, namelen)) != NAME_NOT_FOUND) { |
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|
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/* key of pointed object */ |
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set_de_object_key(de); |
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|
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store_de_entry_key(de); |
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|
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/* retval can be NAME_FOUND or NAME_FOUND_INVISIBLE */ |
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return retval; } |
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} |
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|
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if (GET_GENERATION_NUMBER(le_ih_k_offset(de->de_ih)) == 0) |
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/* * we have reached left most entry in the node. In common we * have to go to the left neighbor, but if generation counter * is 0 already, we know for sure, that there is no name with * the same hash value */ /* * FIXME: this work correctly only because hash value can not * be 0. Btw, in case of Yura's hash it is probably possible, * so, this is a bug */ |
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return NAME_NOT_FOUND; |
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|
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RFALSE(de->de_item_num, "vs-7015: two diritems of the same directory in one node?"); |
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|
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return GOTO_PREVIOUS_ITEM; } |
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|
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/* * may return NAME_FOUND, NAME_FOUND_INVISIBLE, NAME_NOT_FOUND * FIXME: should add something like IOERROR */ |
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static int reiserfs_find_entry(struct inode *dir, const char *name, int namelen, |
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struct treepath *path_to_entry, |
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struct reiserfs_dir_entry *de) |
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{ |
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struct cpu_key key_to_search; int retval; if (namelen > REISERFS_MAX_NAME(dir->i_sb->s_blocksize)) return NAME_NOT_FOUND; /* we will search for this key in the tree */ make_cpu_key(&key_to_search, dir, get_third_component(dir->i_sb, name, namelen), TYPE_DIRENTRY, 3); while (1) { retval = search_by_entry_key(dir->i_sb, &key_to_search, path_to_entry, de); if (retval == IO_ERROR) { |
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reiserfs_error(dir->i_sb, "zam-7001", "io error"); |
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return IO_ERROR; } /* compare names for all entries having given hash value */ retval = linear_search_in_dir_item(&key_to_search, de, name, namelen); |
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/* * there is no need to scan directory anymore. * Given entry found or does not exist */ |
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if (retval != GOTO_PREVIOUS_ITEM) { |
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path_to_entry->pos_in_item = de->de_entry_num; return retval; } |
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/* * there is left neighboring item of this directory * and given entry can be there */ |
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set_cpu_key_k_offset(&key_to_search, le_ih_k_offset(de->de_ih) - 1); pathrelse(path_to_entry); } /* while (1) */ |
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} |
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static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry, |
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unsigned int flags) |
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{ |
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int retval; struct inode *inode = NULL; struct reiserfs_dir_entry de; INITIALIZE_PATH(path_to_entry); if (REISERFS_MAX_NAME(dir->i_sb->s_blocksize) < dentry->d_name.len) return ERR_PTR(-ENAMETOOLONG); |
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reiserfs_write_lock(dir->i_sb); |
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|
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de.de_gen_number_bit_string = NULL; retval = reiserfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &path_to_entry, &de); pathrelse(&path_to_entry); if (retval == NAME_FOUND) { |
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inode = reiserfs_iget(dir->i_sb, |
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(struct cpu_key *)&de.de_dir_id); |
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if (!inode || IS_ERR(inode)) { |
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reiserfs_write_unlock(dir->i_sb); |
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return ERR_PTR(-EACCES); } |
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/* * Propagate the private flag so we know we're * in the priv tree */ |
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if (IS_PRIVATE(dir)) inode->i_flags |= S_PRIVATE; |
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} |
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reiserfs_write_unlock(dir->i_sb); |
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if (retval == IO_ERROR) { return ERR_PTR(-EIO); |
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} |
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return d_splice_alias(inode, dentry); |
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} |
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|
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/* |
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* looks up the dentry of the parent directory for child. * taken from ext2_get_parent */ |
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struct dentry *reiserfs_get_parent(struct dentry *child) { |
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int retval; struct inode *inode = NULL; struct reiserfs_dir_entry de; INITIALIZE_PATH(path_to_entry); |
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struct inode *dir = d_inode(child); |
bd4c625c0 reiserfs: run scr... |
384 385 386 387 388 389 390 391 392 393 394 395 396 |
if (dir->i_nlink == 0) { return ERR_PTR(-ENOENT); } de.de_gen_number_bit_string = NULL; reiserfs_write_lock(dir->i_sb); retval = reiserfs_find_entry(dir, "..", 2, &path_to_entry, &de); pathrelse(&path_to_entry); if (retval != NAME_FOUND) { reiserfs_write_unlock(dir->i_sb); return ERR_PTR(-ENOENT); } |
a228bf8f0 reiserfs: cleanup... |
397 |
inode = reiserfs_iget(dir->i_sb, (struct cpu_key *)&de.de_dir_id); |
1da177e4c Linux-2.6.12-rc2 |
398 |
reiserfs_write_unlock(dir->i_sb); |
1da177e4c Linux-2.6.12-rc2 |
399 |
|
440037287 [PATCH] switch al... |
400 |
return d_obtain_alias(inode); |
bd4c625c0 reiserfs: run scr... |
401 |
} |
1da177e4c Linux-2.6.12-rc2 |
402 |
|
0222e6571 reiserfs: strip t... |
403 |
/* add entry to the directory (entry can be hidden). |
1da177e4c Linux-2.6.12-rc2 |
404 405 406 407 |
insert definition of when hidden directories are used here -Hans Does not mark dir inode dirty, do it after successesfull call to it */ |
bd4c625c0 reiserfs: run scr... |
408 409 410 |
static int reiserfs_add_entry(struct reiserfs_transaction_handle *th, struct inode *dir, const char *name, int namelen, struct inode *inode, int visible) |
1da177e4c Linux-2.6.12-rc2 |
411 |
{ |
bd4c625c0 reiserfs: run scr... |
412 413 414 415 |
struct cpu_key entry_key; struct reiserfs_de_head *deh; INITIALIZE_PATH(path); struct reiserfs_dir_entry de; |
3af1efe8a [PATCH] reiserfs:... |
416 |
DECLARE_BITMAP(bit_string, MAX_GENERATION_NUMBER + 1); |
bd4c625c0 reiserfs: run scr... |
417 |
int gen_number; |
098297b27 reiserfs: cleanup... |
418 419 420 421 422 423 |
/* * 48 bytes now and we avoid kmalloc if we * create file with short name */ char small_buf[32 + DEH_SIZE]; |
bd4c625c0 reiserfs: run scr... |
424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 |
char *buffer; int buflen, paste_size; int retval; BUG_ON(!th->t_trans_id); /* cannot allow items to be added into a busy deleted directory */ if (!namelen) return -EINVAL; if (namelen > REISERFS_MAX_NAME(dir->i_sb->s_blocksize)) return -ENAMETOOLONG; /* each entry has unique key. compose it */ make_cpu_key(&entry_key, dir, get_third_component(dir->i_sb, name, namelen), TYPE_DIRENTRY, 3); /* get memory for composing the entry */ buflen = DEH_SIZE + ROUND_UP(namelen); if (buflen > sizeof(small_buf)) { |
d739b42b8 [PATCH] reiserfs:... |
445 |
buffer = kmalloc(buflen, GFP_NOFS); |
9dce07f1a NULL noise: fs/*,... |
446 |
if (!buffer) |
bd4c625c0 reiserfs: run scr... |
447 448 449 450 451 452 453 |
return -ENOMEM; } else buffer = small_buf; paste_size = (get_inode_sd_version(dir) == STAT_DATA_V1) ? (DEH_SIZE + namelen) : buflen; |
098297b27 reiserfs: cleanup... |
454 455 456 457 |
/* * fill buffer : directory entry head, name[, dir objectid | , * stat data | ,stat data, dir objectid ] */ |
bd4c625c0 reiserfs: run scr... |
458 459 460 461 462 |
deh = (struct reiserfs_de_head *)buffer; deh->deh_location = 0; /* JDM Endian safe if 0 */ put_deh_offset(deh, cpu_key_k_offset(&entry_key)); deh->deh_state = 0; /* JDM Endian safe if 0 */ /* put key (ino analog) to de */ |
098297b27 reiserfs: cleanup... |
463 464 465 466 467 |
/* safe: k_dir_id is le */ deh->deh_dir_id = INODE_PKEY(inode)->k_dir_id; /* safe: k_objectid is le */ deh->deh_objectid = INODE_PKEY(inode)->k_objectid; |
bd4c625c0 reiserfs: run scr... |
468 469 470 471 472 |
/* copy name */ memcpy((char *)(deh + 1), name, namelen); /* padd by 0s to the 4 byte boundary */ padd_item((char *)(deh + 1), ROUND_UP(namelen), namelen); |
098297b27 reiserfs: cleanup... |
473 474 475 476 |
/* * entry is ready to be pasted into tree, set 'visibility' * and 'stat data in entry' attributes */ |
bd4c625c0 reiserfs: run scr... |
477 478 479 480 481 |
mark_de_without_sd(deh); visible ? mark_de_visible(deh) : mark_de_hidden(deh); /* find the proper place for the new entry */ memset(bit_string, 0, sizeof(bit_string)); |
3af1efe8a [PATCH] reiserfs:... |
482 |
de.de_gen_number_bit_string = bit_string; |
bd4c625c0 reiserfs: run scr... |
483 484 485 |
retval = reiserfs_find_entry(dir, name, namelen, &path, &de); if (retval != NAME_NOT_FOUND) { if (buffer != small_buf) |
d739b42b8 [PATCH] reiserfs:... |
486 |
kfree(buffer); |
bd4c625c0 reiserfs: run scr... |
487 488 489 490 491 492 493 |
pathrelse(&path); if (retval == IO_ERROR) { return -EIO; } if (retval != NAME_FOUND) { |
0030b6457 reiserfs: use rei... |
494 495 496 |
reiserfs_error(dir->i_sb, "zam-7002", "reiserfs_find_entry() returned " "unexpected value (%d)", retval); |
bd4c625c0 reiserfs: run scr... |
497 498 499 500 |
} return -EEXIST; } |
1da177e4c Linux-2.6.12-rc2 |
501 |
|
bd4c625c0 reiserfs: run scr... |
502 |
gen_number = |
3af1efe8a [PATCH] reiserfs:... |
503 |
find_first_zero_bit(bit_string, |
bd4c625c0 reiserfs: run scr... |
504 505 506 |
MAX_GENERATION_NUMBER + 1); if (gen_number > MAX_GENERATION_NUMBER) { /* there is no free generation number */ |
45b03d5e8 reiserfs: rework ... |
507 508 509 |
reiserfs_warning(dir->i_sb, "reiserfs-7010", "Congratulations! we have got hash function " "screwed up"); |
bd4c625c0 reiserfs: run scr... |
510 |
if (buffer != small_buf) |
d739b42b8 [PATCH] reiserfs:... |
511 |
kfree(buffer); |
bd4c625c0 reiserfs: run scr... |
512 513 514 515 516 517 518 519 520 |
pathrelse(&path); return -EBUSY; } /* adjust offset of directory enrty */ put_deh_offset(deh, SET_GENERATION_NUMBER(deh_offset(deh), gen_number)); set_cpu_key_k_offset(&entry_key, deh_offset(deh)); /* update max-hash-collisions counter in reiserfs_sb_info */ PROC_INFO_MAX(th->t_super, max_hash_collisions, gen_number); |
098297b27 reiserfs: cleanup... |
521 522 |
/* we need to re-search for the insertion point */ if (gen_number != 0) { |
bd4c625c0 reiserfs: run scr... |
523 524 |
if (search_by_entry_key(dir->i_sb, &entry_key, &path, &de) != NAME_NOT_FOUND) { |
45b03d5e8 reiserfs: rework ... |
525 526 527 |
reiserfs_warning(dir->i_sb, "vs-7032", "entry with this key (%K) already " "exists", &entry_key); |
bd4c625c0 reiserfs: run scr... |
528 529 |
if (buffer != small_buf) |
d739b42b8 [PATCH] reiserfs:... |
530 |
kfree(buffer); |
bd4c625c0 reiserfs: run scr... |
531 532 533 |
pathrelse(&path); return -EBUSY; } |
1da177e4c Linux-2.6.12-rc2 |
534 |
} |
bd4c625c0 reiserfs: run scr... |
535 536 537 538 539 |
/* perform the insertion of the entry that we have prepared */ retval = reiserfs_paste_into_item(th, &path, &entry_key, dir, buffer, paste_size); if (buffer != small_buf) |
d739b42b8 [PATCH] reiserfs:... |
540 |
kfree(buffer); |
bd4c625c0 reiserfs: run scr... |
541 542 543 |
if (retval) { reiserfs_check_path(&path); return retval; |
1da177e4c Linux-2.6.12-rc2 |
544 |
} |
1da177e4c Linux-2.6.12-rc2 |
545 |
|
bd4c625c0 reiserfs: run scr... |
546 |
dir->i_size += paste_size; |
02027d42c fs: Replace CURRE... |
547 |
dir->i_mtime = dir->i_ctime = current_time(dir); |
bd4c625c0 reiserfs: run scr... |
548 |
if (!S_ISDIR(inode->i_mode) && visible) |
098297b27 reiserfs: cleanup... |
549 |
/* reiserfs_mkdir or reiserfs_rename will do that by itself */ |
bd4c625c0 reiserfs: run scr... |
550 |
reiserfs_update_sd(th, dir); |
1da177e4c Linux-2.6.12-rc2 |
551 |
|
bd4c625c0 reiserfs: run scr... |
552 553 |
reiserfs_check_path(&path); return 0; |
1da177e4c Linux-2.6.12-rc2 |
554 |
} |
098297b27 reiserfs: cleanup... |
555 556 557 558 559 560 |
/* * quota utility function, call if you've had to abort after calling * new_inode_init, and have not called reiserfs_new_inode yet. * This should only be called on inodes that do not have stat data * inserted into the tree yet. */ |
bd4c625c0 reiserfs: run scr... |
561 562 |
static int drop_new_inode(struct inode *inode) { |
9f7547580 dquot: cleanup dq... |
563 |
dquot_drop(inode); |
bd4c625c0 reiserfs: run scr... |
564 565 566 567 |
make_bad_inode(inode); inode->i_flags |= S_NOQUOTA; iput(inode); return 0; |
1da177e4c Linux-2.6.12-rc2 |
568 |
} |
098297b27 reiserfs: cleanup... |
569 570 571 572 573 574 |
/* * utility function that does setup for reiserfs_new_inode. * dquot_initialize needs lots of credits so it's better to have it * outside of a transaction, so we had to pull some bits of * reiserfs_new_inode out into this func. */ |
8e0718924 reiserfs: propaga... |
575 |
static int new_inode_init(struct inode *inode, struct inode *dir, umode_t mode) |
bd4c625c0 reiserfs: run scr... |
576 |
{ |
098297b27 reiserfs: cleanup... |
577 578 579 580 |
/* * Make inode invalid - just in case we are going to drop it before * the initialization happens */ |
1b0a74d1c [PATCH] Fix error... |
581 |
INODE_PKEY(inode)->k_objectid = 0; |
098297b27 reiserfs: cleanup... |
582 583 584 585 |
/* * the quota init calls have to know who to charge the quota to, so * we have to set uid and gid here |
04b7ed0d3 reiserfs: replace... |
586 587 |
*/ inode_init_owner(inode, dir, mode); |
2e6c97ea4 reiserfs: Handle ... |
588 |
return dquot_initialize(inode); |
1da177e4c Linux-2.6.12-rc2 |
589 |
} |
4acdaf27e switch ->create()... |
590 |
static int reiserfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, |
ebfc3b49a don't pass nameid... |
591 |
bool excl) |
1da177e4c Linux-2.6.12-rc2 |
592 |
{ |
bd4c625c0 reiserfs: run scr... |
593 594 |
int retval; struct inode *inode; |
098297b27 reiserfs: cleanup... |
595 596 597 598 |
/* * We need blocks for transaction + (user+group)*(quotas * for new inode + update of quota for directory owner) */ |
bd4c625c0 reiserfs: run scr... |
599 600 601 602 603 |
int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) + REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb)); struct reiserfs_transaction_handle th; |
57fe60df6 reiserfs: add ato... |
604 |
struct reiserfs_security_handle security; |
bd4c625c0 reiserfs: run scr... |
605 |
|
2e6c97ea4 reiserfs: Handle ... |
606 607 608 |
retval = dquot_initialize(dir); if (retval) return retval; |
907f4554e dquot: move dquot... |
609 |
|
bd4c625c0 reiserfs: run scr... |
610 611 612 |
if (!(inode = new_inode(dir->i_sb))) { return -ENOMEM; } |
2e6c97ea4 reiserfs: Handle ... |
613 614 615 616 617 |
retval = new_inode_init(inode, dir, mode); if (retval) { drop_new_inode(inode); return retval; } |
1da177e4c Linux-2.6.12-rc2 |
618 |
|
0ab2621eb reiserfs: journal... |
619 |
jbegin_count += reiserfs_cache_default_acl(dir); |
2a7dba391 fs/vfs/security: ... |
620 |
retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security); |
57fe60df6 reiserfs: add ato... |
621 622 623 624 625 |
if (retval < 0) { drop_new_inode(inode); return retval; } jbegin_count += retval; |
bd4c625c0 reiserfs: run scr... |
626 |
reiserfs_write_lock(dir->i_sb); |
1da177e4c Linux-2.6.12-rc2 |
627 |
|
bd4c625c0 reiserfs: run scr... |
628 629 630 631 632 633 634 635 |
retval = journal_begin(&th, dir->i_sb, jbegin_count); if (retval) { drop_new_inode(inode); goto out_failed; } retval = reiserfs_new_inode(&th, dir, mode, NULL, 0 /*i_size */ , dentry, |
57fe60df6 reiserfs: add ato... |
636 |
inode, &security); |
bd4c625c0 reiserfs: run scr... |
637 638 |
if (retval) goto out_failed; |
bd4c625c0 reiserfs: run scr... |
639 640 641 642 643 644 645 646 647 |
inode->i_op = &reiserfs_file_inode_operations; inode->i_fop = &reiserfs_file_operations; inode->i_mapping->a_ops = &reiserfs_address_space_operations; retval = reiserfs_add_entry(&th, dir, dentry->d_name.name, dentry->d_name.len, inode, 1 /*visible */ ); if (retval) { int err; |
6d6b77f16 filesystems: add ... |
648 |
drop_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
649 |
reiserfs_update_sd(&th, inode); |
58d854265 reiserfs: cleanup... |
650 |
err = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
651 652 |
if (err) retval = err; |
c1eaa26b6 nfsd race fixes: ... |
653 |
unlock_new_inode(inode); |
bd4c625c0 reiserfs: run scr... |
654 655 656 657 658 |
iput(inode); goto out_failed; } reiserfs_update_inode_transaction(inode); reiserfs_update_inode_transaction(dir); |
1da177e4c Linux-2.6.12-rc2 |
659 |
|
f440ea85d do d_instantiate/... |
660 |
d_instantiate_new(dentry, inode); |
58d854265 reiserfs: cleanup... |
661 |
retval = journal_end(&th); |
1da177e4c Linux-2.6.12-rc2 |
662 |
|
cf776a7a4 reiserfs: cleanup... |
663 |
out_failed: |
bd4c625c0 reiserfs: run scr... |
664 665 666 |
reiserfs_write_unlock(dir->i_sb); return retval; } |
1da177e4c Linux-2.6.12-rc2 |
667 |
|
1a67aafb5 switch ->mknod() ... |
668 |
static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, |
bd4c625c0 reiserfs: run scr... |
669 670 671 672 673 |
dev_t rdev) { int retval; struct inode *inode; struct reiserfs_transaction_handle th; |
57fe60df6 reiserfs: add ato... |
674 |
struct reiserfs_security_handle security; |
098297b27 reiserfs: cleanup... |
675 676 677 678 |
/* * We need blocks for transaction + (user+group)*(quotas * for new inode + update of quota for directory owner) */ |
bd4c625c0 reiserfs: run scr... |
679 680 681 682 |
int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) + REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb)); |
bd4c625c0 reiserfs: run scr... |
683 |
|
2e6c97ea4 reiserfs: Handle ... |
684 685 686 |
retval = dquot_initialize(dir); if (retval) return retval; |
907f4554e dquot: move dquot... |
687 |
|
bd4c625c0 reiserfs: run scr... |
688 689 690 |
if (!(inode = new_inode(dir->i_sb))) { return -ENOMEM; } |
2e6c97ea4 reiserfs: Handle ... |
691 692 693 694 695 |
retval = new_inode_init(inode, dir, mode); if (retval) { drop_new_inode(inode); return retval; } |
1da177e4c Linux-2.6.12-rc2 |
696 |
|
0ab2621eb reiserfs: journal... |
697 |
jbegin_count += reiserfs_cache_default_acl(dir); |
2a7dba391 fs/vfs/security: ... |
698 |
retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security); |
57fe60df6 reiserfs: add ato... |
699 700 701 702 703 |
if (retval < 0) { drop_new_inode(inode); return retval; } jbegin_count += retval; |
bd4c625c0 reiserfs: run scr... |
704 |
reiserfs_write_lock(dir->i_sb); |
1da177e4c Linux-2.6.12-rc2 |
705 |
|
bd4c625c0 reiserfs: run scr... |
706 707 708 709 710 |
retval = journal_begin(&th, dir->i_sb, jbegin_count); if (retval) { drop_new_inode(inode); goto out_failed; } |
1da177e4c Linux-2.6.12-rc2 |
711 |
|
bd4c625c0 reiserfs: run scr... |
712 713 |
retval = reiserfs_new_inode(&th, dir, mode, NULL, 0 /*i_size */ , dentry, |
57fe60df6 reiserfs: add ato... |
714 |
inode, &security); |
bd4c625c0 reiserfs: run scr... |
715 716 717 |
if (retval) { goto out_failed; } |
1da177e4c Linux-2.6.12-rc2 |
718 |
|
bd4c625c0 reiserfs: run scr... |
719 720 |
inode->i_op = &reiserfs_special_inode_operations; init_special_inode(inode, inode->i_mode, rdev); |
098297b27 reiserfs: cleanup... |
721 |
/* FIXME: needed for block and char devices only */ |
bd4c625c0 reiserfs: run scr... |
722 723 724 725 726 727 728 729 730 731 |
reiserfs_update_sd(&th, inode); reiserfs_update_inode_transaction(inode); reiserfs_update_inode_transaction(dir); retval = reiserfs_add_entry(&th, dir, dentry->d_name.name, dentry->d_name.len, inode, 1 /*visible */ ); if (retval) { int err; |
6d6b77f16 filesystems: add ... |
732 |
drop_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
733 |
reiserfs_update_sd(&th, inode); |
58d854265 reiserfs: cleanup... |
734 |
err = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
735 736 |
if (err) retval = err; |
c1eaa26b6 nfsd race fixes: ... |
737 |
unlock_new_inode(inode); |
bd4c625c0 reiserfs: run scr... |
738 739 740 |
iput(inode); goto out_failed; } |
1da177e4c Linux-2.6.12-rc2 |
741 |
|
f440ea85d do d_instantiate/... |
742 |
d_instantiate_new(dentry, inode); |
58d854265 reiserfs: cleanup... |
743 |
retval = journal_end(&th); |
1da177e4c Linux-2.6.12-rc2 |
744 |
|
cf776a7a4 reiserfs: cleanup... |
745 |
out_failed: |
bd4c625c0 reiserfs: run scr... |
746 747 |
reiserfs_write_unlock(dir->i_sb); return retval; |
1da177e4c Linux-2.6.12-rc2 |
748 |
} |
18bb1db3e switch vfs_mkdir(... |
749 |
static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
1da177e4c Linux-2.6.12-rc2 |
750 |
{ |
bd4c625c0 reiserfs: run scr... |
751 752 753 |
int retval; struct inode *inode; struct reiserfs_transaction_handle th; |
57fe60df6 reiserfs: add ato... |
754 |
struct reiserfs_security_handle security; |
098297b27 reiserfs: cleanup... |
755 756 757 758 |
/* * We need blocks for transaction + (user+group)*(quotas * for new inode + update of quota for directory owner) */ |
bd4c625c0 reiserfs: run scr... |
759 760 761 762 |
int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) + REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb)); |
1da177e4c Linux-2.6.12-rc2 |
763 |
|
2e6c97ea4 reiserfs: Handle ... |
764 765 766 |
retval = dquot_initialize(dir); if (retval) return retval; |
907f4554e dquot: move dquot... |
767 |
|
1da177e4c Linux-2.6.12-rc2 |
768 |
#ifdef DISPLACE_NEW_PACKING_LOCALITIES |
098297b27 reiserfs: cleanup... |
769 770 771 772 |
/* * set flag that new packing locality created and new blocks * for the content of that directory are not displaced yet */ |
bd4c625c0 reiserfs: run scr... |
773 |
REISERFS_I(dir)->new_packing_locality = 1; |
1da177e4c Linux-2.6.12-rc2 |
774 |
#endif |
bd4c625c0 reiserfs: run scr... |
775 776 777 778 |
mode = S_IFDIR | mode; if (!(inode = new_inode(dir->i_sb))) { return -ENOMEM; } |
2e6c97ea4 reiserfs: Handle ... |
779 780 781 782 783 |
retval = new_inode_init(inode, dir, mode); if (retval) { drop_new_inode(inode); return retval; } |
bd4c625c0 reiserfs: run scr... |
784 |
|
0ab2621eb reiserfs: journal... |
785 |
jbegin_count += reiserfs_cache_default_acl(dir); |
2a7dba391 fs/vfs/security: ... |
786 |
retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security); |
57fe60df6 reiserfs: add ato... |
787 788 789 790 791 |
if (retval < 0) { drop_new_inode(inode); return retval; } jbegin_count += retval; |
278f6679f reiserfs: locking... |
792 |
reiserfs_write_lock(dir->i_sb); |
bd4c625c0 reiserfs: run scr... |
793 794 795 796 797 798 |
retval = journal_begin(&th, dir->i_sb, jbegin_count); if (retval) { drop_new_inode(inode); goto out_failed; } |
1da177e4c Linux-2.6.12-rc2 |
799 |
|
098297b27 reiserfs: cleanup... |
800 801 802 |
/* * inc the link count now, so another writer doesn't overflow * it while we sleep later on. |
bd4c625c0 reiserfs: run scr... |
803 804 805 806 807 808 |
*/ INC_DIR_INODE_NLINK(dir) retval = reiserfs_new_inode(&th, dir, mode, NULL /*symlink */ , old_format_only(dir->i_sb) ? EMPTY_DIR_SIZE_V1 : EMPTY_DIR_SIZE, |
57fe60df6 reiserfs: add ato... |
809 |
dentry, inode, &security); |
bd4c625c0 reiserfs: run scr... |
810 |
if (retval) { |
99890a3be fix reiserfs mkdi... |
811 |
DEC_DIR_INODE_NLINK(dir) |
bd4c625c0 reiserfs: run scr... |
812 813 |
goto out_failed; } |
bd4c625c0 reiserfs: run scr... |
814 815 816 817 818 |
reiserfs_update_inode_transaction(inode); reiserfs_update_inode_transaction(dir); inode->i_op = &reiserfs_dir_inode_operations; inode->i_fop = &reiserfs_dir_operations; |
098297b27 reiserfs: cleanup... |
819 |
/* note, _this_ add_entry will not update dir's stat data */ |
bd4c625c0 reiserfs: run scr... |
820 821 822 823 824 |
retval = reiserfs_add_entry(&th, dir, dentry->d_name.name, dentry->d_name.len, inode, 1 /*visible */ ); if (retval) { int err; |
6d6b77f16 filesystems: add ... |
825 |
clear_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
826 827 |
DEC_DIR_INODE_NLINK(dir); reiserfs_update_sd(&th, inode); |
58d854265 reiserfs: cleanup... |
828 |
err = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
829 830 |
if (err) retval = err; |
c1eaa26b6 nfsd race fixes: ... |
831 |
unlock_new_inode(inode); |
bd4c625c0 reiserfs: run scr... |
832 833 834 |
iput(inode); goto out_failed; } |
098297b27 reiserfs: cleanup... |
835 |
/* the above add_entry did not update dir's stat data */ |
bd4c625c0 reiserfs: run scr... |
836 |
reiserfs_update_sd(&th, dir); |
f440ea85d do d_instantiate/... |
837 |
d_instantiate_new(dentry, inode); |
58d854265 reiserfs: cleanup... |
838 |
retval = journal_end(&th); |
b10ab4c33 kill-the-bkl/reis... |
839 |
out_failed: |
278f6679f reiserfs: locking... |
840 |
reiserfs_write_unlock(dir->i_sb); |
bd4c625c0 reiserfs: run scr... |
841 |
return retval; |
1da177e4c Linux-2.6.12-rc2 |
842 |
} |
bd4c625c0 reiserfs: run scr... |
843 |
static inline int reiserfs_empty_dir(struct inode *inode) |
1da177e4c Linux-2.6.12-rc2 |
844 |
{ |
098297b27 reiserfs: cleanup... |
845 846 847 848 849 |
/* * we can cheat because an old format dir cannot have * EMPTY_DIR_SIZE, and a new format dir cannot have * EMPTY_DIR_SIZE_V1. So, if the inode is either size, * regardless of disk format version, the directory is empty. |
bd4c625c0 reiserfs: run scr... |
850 851 852 853 854 855 |
*/ if (inode->i_size != EMPTY_DIR_SIZE && inode->i_size != EMPTY_DIR_SIZE_V1) { return 0; } return 1; |
1da177e4c Linux-2.6.12-rc2 |
856 |
} |
bd4c625c0 reiserfs: run scr... |
857 |
static int reiserfs_rmdir(struct inode *dir, struct dentry *dentry) |
1da177e4c Linux-2.6.12-rc2 |
858 |
{ |
bd4c625c0 reiserfs: run scr... |
859 860 861 862 863 864 |
int retval, err; struct inode *inode; struct reiserfs_transaction_handle th; int jbegin_count; INITIALIZE_PATH(path); struct reiserfs_dir_entry de; |
098297b27 reiserfs: cleanup... |
865 866 867 868 869 870 |
/* * we will be doing 2 balancings and update 2 stat data, we * change quotas of the owner of the directory and of the owner * of the parent directory. The quota structure is possibly * deleted only on last iput => outside of this transaction */ |
bd4c625c0 reiserfs: run scr... |
871 872 873 |
jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb); |
2e6c97ea4 reiserfs: Handle ... |
874 875 876 |
retval = dquot_initialize(dir); if (retval) return retval; |
907f4554e dquot: move dquot... |
877 |
|
bd4c625c0 reiserfs: run scr... |
878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 |
reiserfs_write_lock(dir->i_sb); retval = journal_begin(&th, dir->i_sb, jbegin_count); if (retval) goto out_rmdir; de.de_gen_number_bit_string = NULL; if ((retval = reiserfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &path, &de)) == NAME_NOT_FOUND) { retval = -ENOENT; goto end_rmdir; } else if (retval == IO_ERROR) { retval = -EIO; goto end_rmdir; } |
2b0143b5c VFS: normal files... |
893 |
inode = d_inode(dentry); |
bd4c625c0 reiserfs: run scr... |
894 895 896 897 898 |
reiserfs_update_inode_transaction(inode); reiserfs_update_inode_transaction(dir); if (de.de_objectid != inode->i_ino) { |
098297b27 reiserfs: cleanup... |
899 900 901 |
/* * FIXME: compare key of an object and a key found in the entry */ |
bd4c625c0 reiserfs: run scr... |
902 903 904 905 906 907 908 909 910 |
retval = -EIO; goto end_rmdir; } if (!reiserfs_empty_dir(inode)) { retval = -ENOTEMPTY; goto end_rmdir; } /* cut entry from dir directory */ |
a228bf8f0 reiserfs: cleanup... |
911 912 |
retval = reiserfs_cut_from_item(&th, &path, &de.de_entry_key, dir, NULL, /* page */ |
bd4c625c0 reiserfs: run scr... |
913 914 915 916 917 |
0 /*new file size - not used here */ ); if (retval < 0) goto end_rmdir; if (inode->i_nlink != 2 && inode->i_nlink != 1) |
0030b6457 reiserfs: use rei... |
918 919 920 |
reiserfs_error(inode->i_sb, "reiserfs-7040", "empty directory has nlink != 2 (%d)", inode->i_nlink); |
bd4c625c0 reiserfs: run scr... |
921 |
|
ce71ec368 [PATCH] r/o bind ... |
922 |
clear_nlink(inode); |
02027d42c fs: Replace CURRE... |
923 |
inode->i_ctime = dir->i_ctime = dir->i_mtime = current_time(dir); |
bd4c625c0 reiserfs: run scr... |
924 925 926 927 928 929 930 931 |
reiserfs_update_sd(&th, inode); DEC_DIR_INODE_NLINK(dir) dir->i_size -= (DEH_SIZE + de.de_entrylen); reiserfs_update_sd(&th, dir); /* prevent empty directory from getting lost */ add_save_link(&th, inode, 0 /* not truncate */ ); |
58d854265 reiserfs: cleanup... |
932 |
retval = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
933 |
reiserfs_check_path(&path); |
cf776a7a4 reiserfs: cleanup... |
934 |
out_rmdir: |
bd4c625c0 reiserfs: run scr... |
935 936 |
reiserfs_write_unlock(dir->i_sb); return retval; |
cf776a7a4 reiserfs: cleanup... |
937 |
end_rmdir: |
098297b27 reiserfs: cleanup... |
938 939 940 941 942 |
/* * we must release path, because we did not call * reiserfs_cut_from_item, or reiserfs_cut_from_item does not * release path if operation was not complete */ |
bd4c625c0 reiserfs: run scr... |
943 |
pathrelse(&path); |
58d854265 reiserfs: cleanup... |
944 |
err = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
945 946 |
reiserfs_write_unlock(dir->i_sb); return err ? err : retval; |
1da177e4c Linux-2.6.12-rc2 |
947 |
} |
bd4c625c0 reiserfs: run scr... |
948 |
static int reiserfs_unlink(struct inode *dir, struct dentry *dentry) |
1da177e4c Linux-2.6.12-rc2 |
949 |
{ |
bd4c625c0 reiserfs: run scr... |
950 951 952 953 954 955 956 |
int retval, err; struct inode *inode; struct reiserfs_dir_entry de; INITIALIZE_PATH(path); struct reiserfs_transaction_handle th; int jbegin_count; unsigned long savelink; |
2e6c97ea4 reiserfs: Handle ... |
957 958 959 |
retval = dquot_initialize(dir); if (retval) return retval; |
907f4554e dquot: move dquot... |
960 |
|
2b0143b5c VFS: normal files... |
961 |
inode = d_inode(dentry); |
bd4c625c0 reiserfs: run scr... |
962 |
|
098297b27 reiserfs: cleanup... |
963 964 965 966 967 968 969 |
/* * in this transaction we can be doing at max two balancings and * update two stat datas, we change quotas of the owner of the * directory and of the owner of the parent directory. The quota * structure is possibly deleted only on iput => outside of * this transaction */ |
bd4c625c0 reiserfs: run scr... |
970 971 972 |
jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb); |
278f6679f reiserfs: locking... |
973 |
reiserfs_write_lock(dir->i_sb); |
bd4c625c0 reiserfs: run scr... |
974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 |
retval = journal_begin(&th, dir->i_sb, jbegin_count); if (retval) goto out_unlink; de.de_gen_number_bit_string = NULL; if ((retval = reiserfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &path, &de)) == NAME_NOT_FOUND) { retval = -ENOENT; goto end_unlink; } else if (retval == IO_ERROR) { retval = -EIO; goto end_unlink; } reiserfs_update_inode_transaction(inode); reiserfs_update_inode_transaction(dir); if (de.de_objectid != inode->i_ino) { |
098297b27 reiserfs: cleanup... |
993 994 995 |
/* * FIXME: compare key of an object and a key found in the entry */ |
bd4c625c0 reiserfs: run scr... |
996 997 998 999 1000 |
retval = -EIO; goto end_unlink; } if (!inode->i_nlink) { |
45b03d5e8 reiserfs: rework ... |
1001 1002 1003 |
reiserfs_warning(inode->i_sb, "reiserfs-7042", "deleting nonexistent file (%lu), %d", inode->i_ino, inode->i_nlink); |
bfe868486 filesystems: add ... |
1004 |
set_nlink(inode, 1); |
bd4c625c0 reiserfs: run scr... |
1005 |
} |
9a53c3a78 [PATCH] r/o bind ... |
1006 |
drop_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
1007 1008 1009 1010 1011 1012 1013 1014 |
/* * we schedule before doing the add_save_link call, save the link * count so we don't race */ savelink = inode->i_nlink; retval = |
a228bf8f0 reiserfs: cleanup... |
1015 |
reiserfs_cut_from_item(&th, &path, &de.de_entry_key, dir, NULL, |
bd4c625c0 reiserfs: run scr... |
1016 1017 |
0); if (retval < 0) { |
d8c76e6f4 [PATCH] r/o bind ... |
1018 |
inc_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
1019 1020 |
goto end_unlink; } |
02027d42c fs: Replace CURRE... |
1021 |
inode->i_ctime = current_time(inode); |
bd4c625c0 reiserfs: run scr... |
1022 1023 1024 |
reiserfs_update_sd(&th, inode); dir->i_size -= (de.de_entrylen + DEH_SIZE); |
02027d42c fs: Replace CURRE... |
1025 |
dir->i_ctime = dir->i_mtime = current_time(dir); |
bd4c625c0 reiserfs: run scr... |
1026 1027 1028 1029 1030 |
reiserfs_update_sd(&th, dir); if (!savelink) /* prevent file from getting lost */ add_save_link(&th, inode, 0 /* not truncate */ ); |
58d854265 reiserfs: cleanup... |
1031 |
retval = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1032 |
reiserfs_check_path(&path); |
278f6679f reiserfs: locking... |
1033 |
reiserfs_write_unlock(dir->i_sb); |
bd4c625c0 reiserfs: run scr... |
1034 |
return retval; |
cf776a7a4 reiserfs: cleanup... |
1035 |
end_unlink: |
bd4c625c0 reiserfs: run scr... |
1036 |
pathrelse(&path); |
58d854265 reiserfs: cleanup... |
1037 |
err = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1038 |
reiserfs_check_path(&path); |
1da177e4c Linux-2.6.12-rc2 |
1039 |
if (err) |
bd4c625c0 reiserfs: run scr... |
1040 |
retval = err; |
cf776a7a4 reiserfs: cleanup... |
1041 |
out_unlink: |
278f6679f reiserfs: locking... |
1042 |
reiserfs_write_unlock(dir->i_sb); |
bd4c625c0 reiserfs: run scr... |
1043 |
return retval; |
1da177e4c Linux-2.6.12-rc2 |
1044 |
} |
bd4c625c0 reiserfs: run scr... |
1045 1046 |
static int reiserfs_symlink(struct inode *parent_dir, struct dentry *dentry, const char *symname) |
1da177e4c Linux-2.6.12-rc2 |
1047 |
{ |
bd4c625c0 reiserfs: run scr... |
1048 1049 1050 1051 1052 |
int retval; struct inode *inode; char *name; int item_len; struct reiserfs_transaction_handle th; |
57fe60df6 reiserfs: add ato... |
1053 |
struct reiserfs_security_handle security; |
bd4c625c0 reiserfs: run scr... |
1054 |
int mode = S_IFLNK | S_IRWXUGO; |
098297b27 reiserfs: cleanup... |
1055 1056 1057 1058 |
/* * We need blocks for transaction + (user+group)*(quotas for * new inode + update of quota for directory owner) */ |
bd4c625c0 reiserfs: run scr... |
1059 1060 1061 1062 |
int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(parent_dir->i_sb) + REISERFS_QUOTA_TRANS_BLOCKS(parent_dir->i_sb)); |
2e6c97ea4 reiserfs: Handle ... |
1063 1064 1065 |
retval = dquot_initialize(parent_dir); if (retval) return retval; |
907f4554e dquot: move dquot... |
1066 |
|
bd4c625c0 reiserfs: run scr... |
1067 1068 1069 |
if (!(inode = new_inode(parent_dir->i_sb))) { return -ENOMEM; } |
2e6c97ea4 reiserfs: Handle ... |
1070 1071 1072 1073 1074 |
retval = new_inode_init(inode, parent_dir, mode); if (retval) { drop_new_inode(inode); return retval; } |
bd4c625c0 reiserfs: run scr... |
1075 |
|
2a7dba391 fs/vfs/security: ... |
1076 1077 |
retval = reiserfs_security_init(parent_dir, inode, &dentry->d_name, &security); |
57fe60df6 reiserfs: add ato... |
1078 1079 1080 1081 1082 |
if (retval < 0) { drop_new_inode(inode); return retval; } jbegin_count += retval; |
bd4c625c0 reiserfs: run scr... |
1083 1084 1085 1086 1087 1088 1089 |
reiserfs_write_lock(parent_dir->i_sb); item_len = ROUND_UP(strlen(symname)); if (item_len > MAX_DIRECT_ITEM_LEN(parent_dir->i_sb->s_blocksize)) { retval = -ENAMETOOLONG; drop_new_inode(inode); goto out_failed; } |
d739b42b8 [PATCH] reiserfs:... |
1090 |
name = kmalloc(item_len, GFP_NOFS); |
bd4c625c0 reiserfs: run scr... |
1091 1092 1093 1094 1095 1096 1097 |
if (!name) { drop_new_inode(inode); retval = -ENOMEM; goto out_failed; } memcpy(name, symname, strlen(symname)); padd_item(name, item_len, strlen(symname)); |
bd4c625c0 reiserfs: run scr... |
1098 1099 1100 |
retval = journal_begin(&th, parent_dir->i_sb, jbegin_count); if (retval) { drop_new_inode(inode); |
d739b42b8 [PATCH] reiserfs:... |
1101 |
kfree(name); |
bd4c625c0 reiserfs: run scr... |
1102 1103 1104 1105 1106 |
goto out_failed; } retval = reiserfs_new_inode(&th, parent_dir, mode, name, strlen(symname), |
57fe60df6 reiserfs: add ato... |
1107 |
dentry, inode, &security); |
d739b42b8 [PATCH] reiserfs:... |
1108 |
kfree(name); |
bd4c625c0 reiserfs: run scr... |
1109 1110 1111 |
if (retval) { /* reiserfs_new_inode iputs for us */ goto out_failed; } |
1da177e4c Linux-2.6.12-rc2 |
1112 |
|
bd4c625c0 reiserfs: run scr... |
1113 1114 1115 1116 |
reiserfs_update_inode_transaction(inode); reiserfs_update_inode_transaction(parent_dir); inode->i_op = &reiserfs_symlink_inode_operations; |
21fc61c73 don't put symlink... |
1117 |
inode_nohighmem(inode); |
bd4c625c0 reiserfs: run scr... |
1118 |
inode->i_mapping->a_ops = &reiserfs_address_space_operations; |
bd4c625c0 reiserfs: run scr... |
1119 1120 1121 1122 |
retval = reiserfs_add_entry(&th, parent_dir, dentry->d_name.name, dentry->d_name.len, inode, 1 /*visible */ ); if (retval) { int err; |
6d6b77f16 filesystems: add ... |
1123 |
drop_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
1124 |
reiserfs_update_sd(&th, inode); |
58d854265 reiserfs: cleanup... |
1125 |
err = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1126 1127 |
if (err) retval = err; |
c1eaa26b6 nfsd race fixes: ... |
1128 |
unlock_new_inode(inode); |
bd4c625c0 reiserfs: run scr... |
1129 1130 1131 |
iput(inode); goto out_failed; } |
1da177e4c Linux-2.6.12-rc2 |
1132 |
|
f440ea85d do d_instantiate/... |
1133 |
d_instantiate_new(dentry, inode); |
58d854265 reiserfs: cleanup... |
1134 |
retval = journal_end(&th); |
cf776a7a4 reiserfs: cleanup... |
1135 |
out_failed: |
bd4c625c0 reiserfs: run scr... |
1136 1137 |
reiserfs_write_unlock(parent_dir->i_sb); return retval; |
1da177e4c Linux-2.6.12-rc2 |
1138 |
} |
bd4c625c0 reiserfs: run scr... |
1139 1140 1141 1142 |
static int reiserfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { int retval; |
2b0143b5c VFS: normal files... |
1143 |
struct inode *inode = d_inode(old_dentry); |
bd4c625c0 reiserfs: run scr... |
1144 |
struct reiserfs_transaction_handle th; |
098297b27 reiserfs: cleanup... |
1145 1146 1147 1148 |
/* * We need blocks for transaction + update of quotas for * the owners of the directory */ |
bd4c625c0 reiserfs: run scr... |
1149 1150 1151 |
int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb); |
2e6c97ea4 reiserfs: Handle ... |
1152 1153 1154 |
retval = dquot_initialize(dir); if (retval) return retval; |
907f4554e dquot: move dquot... |
1155 |
|
bd4c625c0 reiserfs: run scr... |
1156 1157 |
reiserfs_write_lock(dir->i_sb); if (inode->i_nlink >= REISERFS_LINK_MAX) { |
098297b27 reiserfs: cleanup... |
1158 |
/* FIXME: sd_nlink is 32 bit for new files */ |
bd4c625c0 reiserfs: run scr... |
1159 1160 1161 |
reiserfs_write_unlock(dir->i_sb); return -EMLINK; } |
bd4c625c0 reiserfs: run scr... |
1162 1163 |
/* inc before scheduling so reiserfs_unlink knows we are here */ |
d8c76e6f4 [PATCH] r/o bind ... |
1164 |
inc_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
1165 1166 1167 |
retval = journal_begin(&th, dir->i_sb, jbegin_count); if (retval) { |
6d6b77f16 filesystems: add ... |
1168 |
drop_nlink(inode); |
bd4c625c0 reiserfs: run scr... |
1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 |
reiserfs_write_unlock(dir->i_sb); return retval; } /* create new entry */ retval = reiserfs_add_entry(&th, dir, dentry->d_name.name, dentry->d_name.len, inode, 1 /*visible */ ); reiserfs_update_inode_transaction(inode); reiserfs_update_inode_transaction(dir); if (retval) { int err; |
6d6b77f16 filesystems: add ... |
1183 |
drop_nlink(inode); |
58d854265 reiserfs: cleanup... |
1184 |
err = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1185 1186 1187 |
reiserfs_write_unlock(dir->i_sb); return err ? err : retval; } |
02027d42c fs: Replace CURRE... |
1188 |
inode->i_ctime = current_time(inode); |
bd4c625c0 reiserfs: run scr... |
1189 |
reiserfs_update_sd(&th, inode); |
7de9c6ee3 new helper: ihold() |
1190 |
ihold(inode); |
bd4c625c0 reiserfs: run scr... |
1191 |
d_instantiate(dentry, inode); |
58d854265 reiserfs: cleanup... |
1192 |
retval = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1193 1194 1195 |
reiserfs_write_unlock(dir->i_sb); return retval; } |
1da177e4c Linux-2.6.12-rc2 |
1196 |
|
0222e6571 reiserfs: strip t... |
1197 |
/* de contains information pointing to an entry which */ |
bd4c625c0 reiserfs: run scr... |
1198 1199 |
static int de_still_valid(const char *name, int len, struct reiserfs_dir_entry *de) |
1da177e4c Linux-2.6.12-rc2 |
1200 |
{ |
bd4c625c0 reiserfs: run scr... |
1201 |
struct reiserfs_dir_entry tmp = *de; |
098297b27 reiserfs: cleanup... |
1202 |
/* recalculate pointer to name and name length */ |
bd4c625c0 reiserfs: run scr... |
1203 |
set_de_name_and_namelen(&tmp); |
098297b27 reiserfs: cleanup... |
1204 |
/* FIXME: could check more */ |
bd4c625c0 reiserfs: run scr... |
1205 1206 1207 |
if (tmp.de_namelen != len || memcmp(name, de->de_name, len)) return 0; return 1; |
1da177e4c Linux-2.6.12-rc2 |
1208 |
} |
bd4c625c0 reiserfs: run scr... |
1209 1210 1211 |
static int entry_points_to_object(const char *name, int len, struct reiserfs_dir_entry *de, struct inode *inode) |
1da177e4c Linux-2.6.12-rc2 |
1212 |
{ |
bd4c625c0 reiserfs: run scr... |
1213 1214 1215 1216 1217 |
if (!de_still_valid(name, len, de)) return 0; if (inode) { if (!de_visible(de->de_deh + de->de_entry_num)) |
c3a9c2109 reiserfs: rework ... |
1218 1219 |
reiserfs_panic(inode->i_sb, "vs-7042", "entry must be visible"); |
bd4c625c0 reiserfs: run scr... |
1220 1221 |
return (de->de_objectid == inode->i_ino) ? 1 : 0; } |
1da177e4c Linux-2.6.12-rc2 |
1222 |
|
bd4c625c0 reiserfs: run scr... |
1223 1224 |
/* this must be added hidden entry */ if (de_visible(de->de_deh + de->de_entry_num)) |
c3a9c2109 reiserfs: rework ... |
1225 |
reiserfs_panic(NULL, "vs-7043", "entry must be visible"); |
1da177e4c Linux-2.6.12-rc2 |
1226 |
|
bd4c625c0 reiserfs: run scr... |
1227 |
return 1; |
1da177e4c Linux-2.6.12-rc2 |
1228 |
} |
1da177e4c Linux-2.6.12-rc2 |
1229 |
/* sets key of objectid the entry has to point to */ |
bd4c625c0 reiserfs: run scr... |
1230 1231 |
static void set_ino_in_dir_entry(struct reiserfs_dir_entry *de, struct reiserfs_key *key) |
1da177e4c Linux-2.6.12-rc2 |
1232 |
{ |
bd4c625c0 reiserfs: run scr... |
1233 1234 1235 |
/* JDM These operations are endian safe - both are le */ de->de_deh[de->de_entry_num].deh_dir_id = key->k_dir_id; de->de_deh[de->de_entry_num].deh_objectid = key->k_objectid; |
1da177e4c Linux-2.6.12-rc2 |
1236 |
} |
0222e6571 reiserfs: strip t... |
1237 |
/* |
1da177e4c Linux-2.6.12-rc2 |
1238 1239 |
* process, that is going to call fix_nodes/do_balance must hold only * one path. If it holds 2 or more, it can get into endless waiting in |
0222e6571 reiserfs: strip t... |
1240 |
* get_empty_nodes or its clones |
1da177e4c Linux-2.6.12-rc2 |
1241 |
*/ |
bd4c625c0 reiserfs: run scr... |
1242 |
static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry, |
f03b8ad8d fs: support RENAM... |
1243 1244 |
struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) |
1da177e4c Linux-2.6.12-rc2 |
1245 |
{ |
bd4c625c0 reiserfs: run scr... |
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 |
int retval; INITIALIZE_PATH(old_entry_path); INITIALIZE_PATH(new_entry_path); INITIALIZE_PATH(dot_dot_entry_path); struct item_head new_entry_ih, old_entry_ih, dot_dot_ih; struct reiserfs_dir_entry old_de, new_de, dot_dot_de; struct inode *old_inode, *new_dentry_inode; struct reiserfs_transaction_handle th; int jbegin_count; umode_t old_inode_mode; unsigned long savelink = 1; struct timespec ctime; |
f03b8ad8d fs: support RENAM... |
1258 1259 |
if (flags & ~RENAME_NOREPLACE) return -EINVAL; |
098297b27 reiserfs: cleanup... |
1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 |
/* * three balancings: (1) old name removal, (2) new name insertion * and (3) maybe "save" link insertion * stat data updates: (1) old directory, * (2) new directory and (3) maybe old object stat data (when it is * directory) and (4) maybe stat data of object to which new entry * pointed initially and (5) maybe block containing ".." of * renamed directory * quota updates: two parent directories */ |
bd4c625c0 reiserfs: run scr... |
1270 1271 1272 |
jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 5 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(old_dir->i_sb); |
2e6c97ea4 reiserfs: Handle ... |
1273 1274 1275 1276 1277 1278 |
retval = dquot_initialize(old_dir); if (retval) return retval; retval = dquot_initialize(new_dir); if (retval) return retval; |
907f4554e dquot: move dquot... |
1279 |
|
2b0143b5c VFS: normal files... |
1280 1281 |
old_inode = d_inode(old_dentry); new_dentry_inode = d_inode(new_dentry); |
bd4c625c0 reiserfs: run scr... |
1282 |
|
098297b27 reiserfs: cleanup... |
1283 1284 1285 1286 |
/* * make sure that oldname still exists and points to an object we * are going to rename */ |
bd4c625c0 reiserfs: run scr... |
1287 1288 1289 1290 1291 1292 1293 1294 |
old_de.de_gen_number_bit_string = NULL; reiserfs_write_lock(old_dir->i_sb); retval = reiserfs_find_entry(old_dir, old_dentry->d_name.name, old_dentry->d_name.len, &old_entry_path, &old_de); pathrelse(&old_entry_path); if (retval == IO_ERROR) { |
1da177e4c Linux-2.6.12-rc2 |
1295 |
reiserfs_write_unlock(old_dir->i_sb); |
bd4c625c0 reiserfs: run scr... |
1296 |
return -EIO; |
1da177e4c Linux-2.6.12-rc2 |
1297 |
} |
bd4c625c0 reiserfs: run scr... |
1298 1299 1300 1301 |
if (retval != NAME_FOUND || old_de.de_objectid != old_inode->i_ino) { reiserfs_write_unlock(old_dir->i_sb); return -ENOENT; |
1da177e4c Linux-2.6.12-rc2 |
1302 |
} |
bd4c625c0 reiserfs: run scr... |
1303 1304 |
old_inode_mode = old_inode->i_mode; if (S_ISDIR(old_inode_mode)) { |
098297b27 reiserfs: cleanup... |
1305 1306 1307 1308 1309 |
/* * make sure that directory being renamed has correct ".." * and that its new parent directory has not too many links * already */ |
bd4c625c0 reiserfs: run scr... |
1310 1311 1312 1313 1314 1315 |
if (new_dentry_inode) { if (!reiserfs_empty_dir(new_dentry_inode)) { reiserfs_write_unlock(old_dir->i_sb); return -ENOTEMPTY; } } |
098297b27 reiserfs: cleanup... |
1316 1317 1318 |
/* * directory is renamed, its parent directory will be changed, * so find ".." entry |
bd4c625c0 reiserfs: run scr... |
1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 |
*/ dot_dot_de.de_gen_number_bit_string = NULL; retval = reiserfs_find_entry(old_inode, "..", 2, &dot_dot_entry_path, &dot_dot_de); pathrelse(&dot_dot_entry_path); if (retval != NAME_FOUND) { reiserfs_write_unlock(old_dir->i_sb); return -EIO; } /* inode number of .. must equal old_dir->i_ino */ if (dot_dot_de.de_objectid != old_dir->i_ino) { reiserfs_write_unlock(old_dir->i_sb); return -EIO; } |
1da177e4c Linux-2.6.12-rc2 |
1335 |
} |
bd4c625c0 reiserfs: run scr... |
1336 1337 1338 1339 1340 |
retval = journal_begin(&th, old_dir->i_sb, jbegin_count); if (retval) { reiserfs_write_unlock(old_dir->i_sb); return retval; |
1da177e4c Linux-2.6.12-rc2 |
1341 |
} |
bd4c625c0 reiserfs: run scr... |
1342 1343 1344 1345 1346 1347 1348 |
/* add new entry (or find the existing one) */ retval = reiserfs_add_entry(&th, new_dir, new_dentry->d_name.name, new_dentry->d_name.len, old_inode, 0); if (retval == -EEXIST) { if (!new_dentry_inode) { |
c3a9c2109 reiserfs: rework ... |
1349 1350 |
reiserfs_panic(old_dir->i_sb, "vs-7050", "new entry is found, new inode == 0"); |
bd4c625c0 reiserfs: run scr... |
1351 1352 |
} } else if (retval) { |
58d854265 reiserfs: cleanup... |
1353 |
int err = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1354 1355 |
reiserfs_write_unlock(old_dir->i_sb); return err ? err : retval; |
1da177e4c Linux-2.6.12-rc2 |
1356 |
} |
bd4c625c0 reiserfs: run scr... |
1357 1358 |
reiserfs_update_inode_transaction(old_dir); reiserfs_update_inode_transaction(new_dir); |
098297b27 reiserfs: cleanup... |
1359 1360 1361 |
/* * this makes it so an fsync on an open fd for the old name will * commit the rename operation |
bd4c625c0 reiserfs: run scr... |
1362 1363 1364 1365 1366 1367 1368 |
*/ reiserfs_update_inode_transaction(old_inode); if (new_dentry_inode) reiserfs_update_inode_transaction(new_dentry_inode); while (1) { |
098297b27 reiserfs: cleanup... |
1369 1370 1371 1372 |
/* * look for old name using corresponding entry key * (found by reiserfs_find_entry) */ |
bd4c625c0 reiserfs: run scr... |
1373 1374 1375 1376 1377 |
if ((retval = search_by_entry_key(new_dir->i_sb, &old_de.de_entry_key, &old_entry_path, &old_de)) != NAME_FOUND) { pathrelse(&old_entry_path); |
58d854265 reiserfs: cleanup... |
1378 |
journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1379 1380 1381 |
reiserfs_write_unlock(old_dir->i_sb); return -EIO; } |
4cf5f7add reiserfs: cleanup... |
1382 |
copy_item_head(&old_entry_ih, tp_item_head(&old_entry_path)); |
bd4c625c0 reiserfs: run scr... |
1383 1384 |
reiserfs_prepare_for_journal(old_inode->i_sb, old_de.de_bh, 1); |
098297b27 reiserfs: cleanup... |
1385 |
/* look for new name by reiserfs_find_entry */ |
bd4c625c0 reiserfs: run scr... |
1386 1387 1388 1389 1390 |
new_de.de_gen_number_bit_string = NULL; retval = reiserfs_find_entry(new_dir, new_dentry->d_name.name, new_dentry->d_name.len, &new_entry_path, &new_de); |
098297b27 reiserfs: cleanup... |
1391 1392 1393 1394 1395 1396 |
/* * reiserfs_add_entry should not return IO_ERROR, * because it is called with essentially same parameters from * reiserfs_add_entry above, and we'll catch any i/o errors * before we get here. */ |
bd4c625c0 reiserfs: run scr... |
1397 1398 1399 |
if (retval != NAME_FOUND_INVISIBLE && retval != NAME_FOUND) { pathrelse(&new_entry_path); pathrelse(&old_entry_path); |
58d854265 reiserfs: cleanup... |
1400 |
journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1401 1402 1403 |
reiserfs_write_unlock(old_dir->i_sb); return -EIO; } |
4cf5f7add reiserfs: cleanup... |
1404 |
copy_item_head(&new_entry_ih, tp_item_head(&new_entry_path)); |
bd4c625c0 reiserfs: run scr... |
1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 |
reiserfs_prepare_for_journal(old_inode->i_sb, new_de.de_bh, 1); if (S_ISDIR(old_inode->i_mode)) { if ((retval = search_by_entry_key(new_dir->i_sb, &dot_dot_de.de_entry_key, &dot_dot_entry_path, &dot_dot_de)) != NAME_FOUND) { pathrelse(&dot_dot_entry_path); pathrelse(&new_entry_path); pathrelse(&old_entry_path); |
58d854265 reiserfs: cleanup... |
1417 |
journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1418 1419 1420 1421 |
reiserfs_write_unlock(old_dir->i_sb); return -EIO; } copy_item_head(&dot_dot_ih, |
4cf5f7add reiserfs: cleanup... |
1422 |
tp_item_head(&dot_dot_entry_path)); |
098297b27 reiserfs: cleanup... |
1423 |
/* node containing ".." gets into transaction */ |
bd4c625c0 reiserfs: run scr... |
1424 1425 1426 |
reiserfs_prepare_for_journal(old_inode->i_sb, dot_dot_de.de_bh, 1); } |
098297b27 reiserfs: cleanup... |
1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 |
/* * we should check seals here, not do * this stuff, yes? Then, having * gathered everything into RAM we * should lock the buffers, yes? -Hans */ /* * probably. our rename needs to hold more * than one path at once. The seals would * have to be written to deal with multi-path * issues -chris |
bd4c625c0 reiserfs: run scr... |
1438 |
*/ |
098297b27 reiserfs: cleanup... |
1439 1440 1441 1442 |
/* * sanity checking before doing the rename - avoid races many * of the above checks could have scheduled. We have to be * sure our items haven't been shifted by another process. |
bd4c625c0 reiserfs: run scr... |
1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 |
*/ if (item_moved(&new_entry_ih, &new_entry_path) || !entry_points_to_object(new_dentry->d_name.name, new_dentry->d_name.len, &new_de, new_dentry_inode) || item_moved(&old_entry_ih, &old_entry_path) || !entry_points_to_object(old_dentry->d_name.name, old_dentry->d_name.len, &old_de, old_inode)) { reiserfs_restore_prepared_buffer(old_inode->i_sb, new_de.de_bh); reiserfs_restore_prepared_buffer(old_inode->i_sb, old_de.de_bh); if (S_ISDIR(old_inode_mode)) reiserfs_restore_prepared_buffer(old_inode-> i_sb, dot_dot_de. de_bh); continue; } if (S_ISDIR(old_inode_mode)) { if (item_moved(&dot_dot_ih, &dot_dot_entry_path) || !entry_points_to_object("..", 2, &dot_dot_de, old_dir)) { reiserfs_restore_prepared_buffer(old_inode-> i_sb, old_de.de_bh); reiserfs_restore_prepared_buffer(old_inode-> i_sb, new_de.de_bh); reiserfs_restore_prepared_buffer(old_inode-> i_sb, dot_dot_de. de_bh); continue; } } RFALSE(S_ISDIR(old_inode_mode) && !buffer_journal_prepared(dot_dot_de.de_bh), ""); break; |
1da177e4c Linux-2.6.12-rc2 |
1485 |
} |
098297b27 reiserfs: cleanup... |
1486 1487 1488 1489 |
/* * ok, all the changes can be done in one fell swoop when we * have claimed all the buffers needed. */ |
1da177e4c Linux-2.6.12-rc2 |
1490 |
|
bd4c625c0 reiserfs: run scr... |
1491 1492 |
mark_de_visible(new_de.de_deh + new_de.de_entry_num); set_ino_in_dir_entry(&new_de, INODE_PKEY(old_inode)); |
09f1b80ba reiserfs: cleanup... |
1493 |
journal_mark_dirty(&th, new_de.de_bh); |
1da177e4c Linux-2.6.12-rc2 |
1494 |
|
bd4c625c0 reiserfs: run scr... |
1495 |
mark_de_hidden(old_de.de_deh + old_de.de_entry_num); |
09f1b80ba reiserfs: cleanup... |
1496 |
journal_mark_dirty(&th, old_de.de_bh); |
02027d42c fs: Replace CURRE... |
1497 |
ctime = current_time(old_dir); |
bd4c625c0 reiserfs: run scr... |
1498 1499 |
old_dir->i_ctime = old_dir->i_mtime = ctime; new_dir->i_ctime = new_dir->i_mtime = ctime; |
098297b27 reiserfs: cleanup... |
1500 1501 1502 1503 |
/* * thanks to Alex Adriaanse <alex_a@caltech.edu> for patch * which adds ctime update of renamed object */ |
bd4c625c0 reiserfs: run scr... |
1504 1505 1506 |
old_inode->i_ctime = ctime; if (new_dentry_inode) { |
098297b27 reiserfs: cleanup... |
1507 |
/* adjust link number of the victim */ |
bd4c625c0 reiserfs: run scr... |
1508 |
if (S_ISDIR(new_dentry_inode->i_mode)) { |
ce71ec368 [PATCH] r/o bind ... |
1509 |
clear_nlink(new_dentry_inode); |
bd4c625c0 reiserfs: run scr... |
1510 |
} else { |
9a53c3a78 [PATCH] r/o bind ... |
1511 |
drop_nlink(new_dentry_inode); |
bd4c625c0 reiserfs: run scr... |
1512 1513 1514 |
} new_dentry_inode->i_ctime = ctime; savelink = new_dentry_inode->i_nlink; |
1da177e4c Linux-2.6.12-rc2 |
1515 |
} |
bd4c625c0 reiserfs: run scr... |
1516 |
|
1da177e4c Linux-2.6.12-rc2 |
1517 |
if (S_ISDIR(old_inode_mode)) { |
0222e6571 reiserfs: strip t... |
1518 |
/* adjust ".." of renamed directory */ |
bd4c625c0 reiserfs: run scr... |
1519 |
set_ino_in_dir_entry(&dot_dot_de, INODE_PKEY(new_dir)); |
09f1b80ba reiserfs: cleanup... |
1520 |
journal_mark_dirty(&th, dot_dot_de.de_bh); |
bd4c625c0 reiserfs: run scr... |
1521 |
|
098297b27 reiserfs: cleanup... |
1522 1523 1524 1525 |
/* * there (in new_dir) was no directory, so it got new link * (".." of renamed directory) */ |
bd4c625c0 reiserfs: run scr... |
1526 |
if (!new_dentry_inode) |
bd4c625c0 reiserfs: run scr... |
1527 1528 1529 1530 |
INC_DIR_INODE_NLINK(new_dir); /* old directory lost one link - ".. " of renamed directory */ DEC_DIR_INODE_NLINK(old_dir); |
1da177e4c Linux-2.6.12-rc2 |
1531 |
} |
098297b27 reiserfs: cleanup... |
1532 1533 1534 1535 |
/* * looks like in 2.3.99pre3 brelse is atomic. * so we can use pathrelse */ |
bd4c625c0 reiserfs: run scr... |
1536 1537 |
pathrelse(&new_entry_path); pathrelse(&dot_dot_entry_path); |
1da177e4c Linux-2.6.12-rc2 |
1538 |
|
098297b27 reiserfs: cleanup... |
1539 1540 1541 1542 1543 |
/* * FIXME: this reiserfs_cut_from_item's return value may screw up * anybody, but it will panic if will not be able to find the * entry. This needs one more clean up */ |
bd4c625c0 reiserfs: run scr... |
1544 |
if (reiserfs_cut_from_item |
a228bf8f0 reiserfs: cleanup... |
1545 |
(&th, &old_entry_path, &old_de.de_entry_key, old_dir, NULL, |
bd4c625c0 reiserfs: run scr... |
1546 |
0) < 0) |
0030b6457 reiserfs: use rei... |
1547 1548 |
reiserfs_error(old_dir->i_sb, "vs-7060", "couldn't not cut old name. Fsck later?"); |
bd4c625c0 reiserfs: run scr... |
1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 |
old_dir->i_size -= DEH_SIZE + old_de.de_entrylen; reiserfs_update_sd(&th, old_dir); reiserfs_update_sd(&th, new_dir); reiserfs_update_sd(&th, old_inode); if (new_dentry_inode) { if (savelink == 0) add_save_link(&th, new_dentry_inode, 0 /* not truncate */ ); reiserfs_update_sd(&th, new_dentry_inode); |
1da177e4c Linux-2.6.12-rc2 |
1561 |
} |
bd4c625c0 reiserfs: run scr... |
1562 |
|
58d854265 reiserfs: cleanup... |
1563 |
retval = journal_end(&th); |
bd4c625c0 reiserfs: run scr... |
1564 1565 |
reiserfs_write_unlock(old_dir->i_sb); return retval; |
1da177e4c Linux-2.6.12-rc2 |
1566 |
} |
098297b27 reiserfs: cleanup... |
1567 |
/* directories can handle most operations... */ |
c5ef1c42c [PATCH] mark stru... |
1568 |
const struct inode_operations reiserfs_dir_inode_operations = { |
bd4c625c0 reiserfs: run scr... |
1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 |
.create = reiserfs_create, .lookup = reiserfs_lookup, .link = reiserfs_link, .unlink = reiserfs_unlink, .symlink = reiserfs_symlink, .mkdir = reiserfs_mkdir, .rmdir = reiserfs_rmdir, .mknod = reiserfs_mknod, .rename = reiserfs_rename, .setattr = reiserfs_setattr, |
bd4c625c0 reiserfs: run scr... |
1579 |
.listxattr = reiserfs_listxattr, |
bd4c625c0 reiserfs: run scr... |
1580 |
.permission = reiserfs_permission, |
4e34e719e fs: take the ACL ... |
1581 |
.get_acl = reiserfs_get_acl, |
47f70d08f reiserfs: use gen... |
1582 |
.set_acl = reiserfs_set_acl, |
1da177e4c Linux-2.6.12-rc2 |
1583 1584 1585 1586 1587 1588 |
}; /* * symlink operations.. same as page_symlink_inode_operations, with xattr * stuff added */ |
c5ef1c42c [PATCH] mark stru... |
1589 |
const struct inode_operations reiserfs_symlink_inode_operations = { |
6b2553918 replace ->follow_... |
1590 |
.get_link = page_get_link, |
bd4c625c0 reiserfs: run scr... |
1591 |
.setattr = reiserfs_setattr, |
bd4c625c0 reiserfs: run scr... |
1592 |
.listxattr = reiserfs_listxattr, |
bd4c625c0 reiserfs: run scr... |
1593 |
.permission = reiserfs_permission, |
1da177e4c Linux-2.6.12-rc2 |
1594 |
}; |
1da177e4c Linux-2.6.12-rc2 |
1595 1596 1597 |
/* * special file operations.. just xattr/acl stuff */ |
c5ef1c42c [PATCH] mark stru... |
1598 |
const struct inode_operations reiserfs_special_inode_operations = { |
bd4c625c0 reiserfs: run scr... |
1599 |
.setattr = reiserfs_setattr, |
bd4c625c0 reiserfs: run scr... |
1600 |
.listxattr = reiserfs_listxattr, |
bd4c625c0 reiserfs: run scr... |
1601 |
.permission = reiserfs_permission, |
4e34e719e fs: take the ACL ... |
1602 |
.get_acl = reiserfs_get_acl, |
47f70d08f reiserfs: use gen... |
1603 |
.set_acl = reiserfs_set_acl, |
1da177e4c Linux-2.6.12-rc2 |
1604 |
}; |