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fs/ext3/super.c
83.8 KB
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/* * linux/fs/ext3/super.c * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) * Laboratoire MASI - Institut Blaise Pascal * Universite Pierre et Marie Curie (Paris VI) * * from * * linux/fs/minix/inode.c * * Copyright (C) 1991, 1992 Linus Torvalds * * Big-endian to little-endian byte-swapping/bitmaps by * David S. Miller (davem@caip.rutgers.edu), 1995 */ |
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#include <linux/module.h> #include <linux/string.h> #include <linux/fs.h> #include <linux/time.h> #include <linux/jbd.h> #include <linux/ext3_fs.h> #include <linux/ext3_jbd.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/blkdev.h> #include <linux/parser.h> |
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#include <linux/buffer_head.h> |
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#include <linux/exportfs.h> |
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#include <linux/vfs.h> #include <linux/random.h> #include <linux/mount.h> #include <linux/namei.h> #include <linux/quotaops.h> |
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#include <linux/seq_file.h> |
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#include <linux/log2.h> |
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#include <linux/cleancache.h> |
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|
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#include <asm/uaccess.h> |
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#include "xattr.h" #include "acl.h" |
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#include "namei.h" |
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|
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#define CREATE_TRACE_POINTS #include <trace/events/ext3.h> |
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#ifdef CONFIG_EXT3_DEFAULTS_TO_ORDERED #define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_ORDERED_DATA #else #define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_WRITEBACK_DATA #endif |
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static int ext3_load_journal(struct super_block *, struct ext3_super_block *, unsigned long journal_devnum); |
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static int ext3_create_journal(struct super_block *, struct ext3_super_block *, |
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unsigned int); |
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static int ext3_commit_super(struct super_block *sb, struct ext3_super_block *es, |
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int sync); static void ext3_mark_recovery_complete(struct super_block * sb, struct ext3_super_block * es); static void ext3_clear_journal_err(struct super_block * sb, struct ext3_super_block * es); static int ext3_sync_fs(struct super_block *sb, int wait); static const char *ext3_decode_error(struct super_block * sb, int errno, char nbuf[16]); static int ext3_remount (struct super_block * sb, int * flags, char * data); |
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static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf); |
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static int ext3_unfreeze(struct super_block *sb); |
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static int ext3_freeze(struct super_block *sb); |
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/* |
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* Wrappers for journal_start/end. * * The only special thing we need to do here is to make sure that all * journal_end calls result in the superblock being marked dirty, so * that sync() will call the filesystem's write_super callback if |
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* appropriate. |
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*/ handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks) { journal_t *journal; if (sb->s_flags & MS_RDONLY) return ERR_PTR(-EROFS); /* Special case here: if the journal has aborted behind our * backs (eg. EIO in the commit thread), then we still need to * take the FS itself readonly cleanly. */ journal = EXT3_SB(sb)->s_journal; if (is_journal_aborted(journal)) { |
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ext3_abort(sb, __func__, |
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"Detected aborted journal"); return ERR_PTR(-EROFS); } return journal_start(journal, nblocks); } |
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/* |
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* The only special thing we need to do here is to make sure that all * journal_stop calls result in the superblock being marked dirty, so * that sync() will call the filesystem's write_super callback if |
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* appropriate. |
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*/ int __ext3_journal_stop(const char *where, handle_t *handle) { struct super_block *sb; int err; int rc; sb = handle->h_transaction->t_journal->j_private; err = handle->h_err; rc = journal_stop(handle); if (!err) err = rc; if (err) __ext3_std_error(sb, where, err); return err; } void ext3_journal_abort_handle(const char *caller, const char *err_fn, struct buffer_head *bh, handle_t *handle, int err) { char nbuf[16]; const char *errstr = ext3_decode_error(NULL, err, nbuf); if (bh) BUFFER_TRACE(bh, "abort"); if (!handle->h_err) handle->h_err = err; if (is_handle_aborted(handle)) return; |
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printk(KERN_ERR "EXT3-fs: %s: aborting transaction: %s in %s ", caller, errstr, err_fn); |
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journal_abort_handle(handle); } |
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void ext3_msg(struct super_block *sb, const char *prefix, const char *fmt, ...) { |
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struct va_format vaf; |
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va_list args; va_start(args, fmt); |
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vaf.fmt = fmt; vaf.va = &args; printk("%sEXT3-fs (%s): %pV ", prefix, sb->s_id, &vaf); |
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va_end(args); } |
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/* Deal with the reporting of failure conditions on a filesystem such as * inconsistencies detected or read IO failures. * * On ext2, we can store the error state of the filesystem in the * superblock. That is not possible on ext3, because we may have other * write ordering constraints on the superblock which prevent us from * writing it out straight away; and given that the journal is about to * be aborted, we can't rely on the current, or future, transactions to * write out the superblock safely. * * We'll just use the journal_abort() error code to record an error in |
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* the journal instead. On recovery, the journal will complain about |
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* that error until we've noted it down and cleared it. */ static void ext3_handle_error(struct super_block *sb) { struct ext3_super_block *es = EXT3_SB(sb)->s_es; EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS; es->s_state |= cpu_to_le16(EXT3_ERROR_FS); if (sb->s_flags & MS_RDONLY) return; |
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if (!test_opt (sb, ERRORS_CONT)) { |
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journal_t *journal = EXT3_SB(sb)->s_journal; |
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set_opt(EXT3_SB(sb)->s_mount_opt, ABORT); |
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if (journal) journal_abort(journal, -EIO); } |
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if (test_opt (sb, ERRORS_RO)) { |
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ext3_msg(sb, KERN_CRIT, "error: remounting filesystem read-only"); |
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sb->s_flags |= MS_RDONLY; } ext3_commit_super(sb, es, 1); |
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if (test_opt(sb, ERRORS_PANIC)) |
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panic("EXT3-fs (%s): panic forced after error ", |
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sb->s_id); |
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} |
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void ext3_error(struct super_block *sb, const char *function, const char *fmt, ...) |
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{ |
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struct va_format vaf; |
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va_list args; va_start(args, fmt); |
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vaf.fmt = fmt; vaf.va = &args; printk(KERN_CRIT "EXT3-fs error (device %s): %s: %pV ", sb->s_id, function, &vaf); |
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va_end(args); ext3_handle_error(sb); } static const char *ext3_decode_error(struct super_block * sb, int errno, char nbuf[16]) { char *errstr = NULL; switch (errno) { case -EIO: errstr = "IO failure"; break; case -ENOMEM: errstr = "Out of memory"; break; case -EROFS: if (!sb || EXT3_SB(sb)->s_journal->j_flags & JFS_ABORT) errstr = "Journal has aborted"; else errstr = "Readonly filesystem"; break; default: /* If the caller passed in an extra buffer for unknown * errors, textualise them now. Else we just return * NULL. */ if (nbuf) { /* Check for truncated error codes... */ if (snprintf(nbuf, 16, "error %d", -errno) >= 0) errstr = nbuf; } break; } return errstr; } /* __ext3_std_error decodes expected errors from journaling functions * automatically and invokes the appropriate error response. */ void __ext3_std_error (struct super_block * sb, const char * function, int errno) { char nbuf[16]; |
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const char *errstr; |
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|
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/* Special case: if the error is EROFS, and we're not already * inside a transaction, then there's really no point in logging * an error. */ if (errno == -EROFS && journal_current_handle() == NULL && (sb->s_flags & MS_RDONLY)) return; errstr = ext3_decode_error(sb, errno, nbuf); |
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ext3_msg(sb, KERN_CRIT, "error in %s: %s", function, errstr); |
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ext3_handle_error(sb); } /* * ext3_abort is a much stronger failure handler than ext3_error. The * abort function may be used to deal with unrecoverable failures such * as journal IO errors or ENOMEM at a critical moment in log management. * * We unconditionally force the filesystem into an ABORT|READONLY state, * unless the error response on the fs has been set to panic in which * case we take the easy way out and panic immediately. */ |
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void ext3_abort(struct super_block *sb, const char *function, const char *fmt, ...) |
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{ |
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struct va_format vaf; |
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va_list args; |
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va_start(args, fmt); |
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vaf.fmt = fmt; vaf.va = &args; printk(KERN_CRIT "EXT3-fs (%s): error: %s: %pV ", sb->s_id, function, &vaf); |
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va_end(args); if (test_opt(sb, ERRORS_PANIC)) |
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panic("EXT3-fs: panic from previous error "); |
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if (sb->s_flags & MS_RDONLY) return; |
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ext3_msg(sb, KERN_CRIT, "error: remounting filesystem read-only"); |
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EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS; sb->s_flags |= MS_RDONLY; |
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set_opt(EXT3_SB(sb)->s_mount_opt, ABORT); |
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if (EXT3_SB(sb)->s_journal) journal_abort(EXT3_SB(sb)->s_journal, -EIO); |
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} |
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void ext3_warning(struct super_block *sb, const char *function, const char *fmt, ...) |
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{ |
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struct va_format vaf; |
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va_list args; va_start(args, fmt); |
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vaf.fmt = fmt; vaf.va = &args; printk(KERN_WARNING "EXT3-fs (%s): warning: %s: %pV ", sb->s_id, function, &vaf); |
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va_end(args); } void ext3_update_dynamic_rev(struct super_block *sb) { struct ext3_super_block *es = EXT3_SB(sb)->s_es; if (le32_to_cpu(es->s_rev_level) > EXT3_GOOD_OLD_REV) return; |
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ext3_msg(sb, KERN_WARNING, "warning: updating to rev %d because of " "new feature flag, running e2fsck is recommended", EXT3_DYNAMIC_REV); |
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es->s_first_ino = cpu_to_le32(EXT3_GOOD_OLD_FIRST_INO); es->s_inode_size = cpu_to_le16(EXT3_GOOD_OLD_INODE_SIZE); es->s_rev_level = cpu_to_le32(EXT3_DYNAMIC_REV); /* leave es->s_feature_*compat flags alone */ /* es->s_uuid will be set by e2fsck if empty */ /* * The rest of the superblock fields should be zero, and if not it * means they are likely already in use, so leave them alone. We * can leave it up to e2fsck to clean up any inconsistencies there. */ } /* * Open the external journal device */ |
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static struct block_device *ext3_blkdev_get(dev_t dev, struct super_block *sb) |
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{ struct block_device *bdev; char b[BDEVNAME_SIZE]; |
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bdev = blkdev_get_by_dev(dev, FMODE_READ|FMODE_WRITE|FMODE_EXCL, sb); |
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if (IS_ERR(bdev)) goto fail; return bdev; fail: |
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ext3_msg(sb, "error: failed to open journal device %s: %ld", __bdevname(dev, b), PTR_ERR(bdev)); |
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return NULL; } /* * Release the journal device */ static int ext3_blkdev_put(struct block_device *bdev) { |
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return blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); |
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} static int ext3_blkdev_remove(struct ext3_sb_info *sbi) { struct block_device *bdev; int ret = -ENODEV; bdev = sbi->journal_bdev; if (bdev) { ret = ext3_blkdev_put(bdev); sbi->journal_bdev = NULL; } return ret; } static inline struct inode *orphan_list_entry(struct list_head *l) { return &list_entry(l, struct ext3_inode_info, i_orphan)->vfs_inode; } static void dump_orphan_list(struct super_block *sb, struct ext3_sb_info *sbi) { struct list_head *l; |
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ext3_msg(sb, KERN_ERR, "error: sb orphan head is %d", |
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le32_to_cpu(sbi->s_es->s_last_orphan)); |
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ext3_msg(sb, KERN_ERR, "sb_info orphan list:"); |
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list_for_each(l, &sbi->s_orphan) { struct inode *inode = orphan_list_entry(l); |
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ext3_msg(sb, KERN_ERR, " " |
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"inode %s:%lu at %p: mode %o, nlink %d, next %d ", |
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inode->i_sb->s_id, inode->i_ino, inode, |
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inode->i_mode, inode->i_nlink, |
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NEXT_ORPHAN(inode)); } } static void ext3_put_super (struct super_block * sb) { struct ext3_sb_info *sbi = EXT3_SB(sb); struct ext3_super_block *es = sbi->s_es; |
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int i, err; |
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dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED); |
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ext3_xattr_put_super(sb); |
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err = journal_destroy(sbi->s_journal); sbi->s_journal = NULL; if (err < 0) |
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ext3_abort(sb, __func__, "Couldn't clean up the journal"); |
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|
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if (!(sb->s_flags & MS_RDONLY)) { EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); es->s_state = cpu_to_le16(sbi->s_mount_state); BUFFER_TRACE(sbi->s_sbh, "marking dirty"); mark_buffer_dirty(sbi->s_sbh); ext3_commit_super(sb, es, 1); } for (i = 0; i < sbi->s_gdb_count; i++) brelse(sbi->s_group_desc[i]); kfree(sbi->s_group_desc); percpu_counter_destroy(&sbi->s_freeblocks_counter); percpu_counter_destroy(&sbi->s_freeinodes_counter); percpu_counter_destroy(&sbi->s_dirs_counter); brelse(sbi->s_sbh); #ifdef CONFIG_QUOTA for (i = 0; i < MAXQUOTAS; i++) kfree(sbi->s_qf_names[i]); #endif /* Debugging code just in case the in-memory inode orphan list * isn't empty. The on-disk one can be non-empty if we've * detected an error and taken the fs readonly, but the * in-memory list had better be clean by this point. */ if (!list_empty(&sbi->s_orphan)) dump_orphan_list(sb, sbi); J_ASSERT(list_empty(&sbi->s_orphan)); |
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invalidate_bdev(sb->s_bdev); |
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if (sbi->journal_bdev && sbi->journal_bdev != sb->s_bdev) { /* * Invalidate the journal device's buffers. We don't want them * floating about in memory - the physical journal device may * hotswapped, and it breaks the `ro-after' testing code. */ sync_blockdev(sbi->journal_bdev); |
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invalidate_bdev(sbi->journal_bdev); |
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ext3_blkdev_remove(sbi); } sb->s_fs_info = NULL; |
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kfree(sbi->s_blockgroup_lock); |
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kfree(sbi); |
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} |
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static struct kmem_cache *ext3_inode_cachep; |
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/* * Called inside transaction, so use GFP_NOFS */ static struct inode *ext3_alloc_inode(struct super_block *sb) { struct ext3_inode_info *ei; |
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ei = kmem_cache_alloc(ext3_inode_cachep, GFP_NOFS); |
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if (!ei) return NULL; |
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ei->i_block_alloc_info = NULL; ei->vfs_inode.i_version = 1; |
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atomic_set(&ei->i_datasync_tid, 0); atomic_set(&ei->i_sync_tid, 0); |
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return &ei->vfs_inode; } |
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static int ext3_drop_inode(struct inode *inode) { int drop = generic_drop_inode(inode); trace_ext3_drop_inode(inode, drop); return drop; } |
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static void ext3_i_callback(struct rcu_head *head) { struct inode *inode = container_of(head, struct inode, i_rcu); |
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kmem_cache_free(ext3_inode_cachep, EXT3_I(inode)); } |
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static void ext3_destroy_inode(struct inode *inode) { |
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if (!list_empty(&(EXT3_I(inode)->i_orphan))) { printk("EXT3 Inode %p: orphan list check failed! ", EXT3_I(inode)); print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4, EXT3_I(inode), sizeof(struct ext3_inode_info), false); dump_stack(); } |
fa0d7e3de fs: icache RCU fr... |
507 |
call_rcu(&inode->i_rcu, ext3_i_callback); |
1da177e4c Linux-2.6.12-rc2 |
508 |
} |
51cc50685 SL*B: drop kmem c... |
509 |
static void init_once(void *foo) |
1da177e4c Linux-2.6.12-rc2 |
510 511 |
{ struct ext3_inode_info *ei = (struct ext3_inode_info *) foo; |
a35afb830 Remove SLAB_CTOR_... |
512 |
INIT_LIST_HEAD(&ei->i_orphan); |
1da177e4c Linux-2.6.12-rc2 |
513 |
#ifdef CONFIG_EXT3_FS_XATTR |
a35afb830 Remove SLAB_CTOR_... |
514 |
init_rwsem(&ei->xattr_sem); |
1da177e4c Linux-2.6.12-rc2 |
515 |
#endif |
a35afb830 Remove SLAB_CTOR_... |
516 517 |
mutex_init(&ei->truncate_mutex); inode_init_once(&ei->vfs_inode); |
1da177e4c Linux-2.6.12-rc2 |
518 |
} |
ae6ddcc5f [PATCH] ext3 and ... |
519 |
|
1da177e4c Linux-2.6.12-rc2 |
520 521 522 523 |
static int init_inodecache(void) { ext3_inode_cachep = kmem_cache_create("ext3_inode_cache", sizeof(struct ext3_inode_info), |
fffb60f93 [PATCH] cpuset me... |
524 525 |
0, (SLAB_RECLAIM_ACCOUNT| SLAB_MEM_SPREAD), |
20c2df83d mm: Remove slab d... |
526 |
init_once); |
1da177e4c Linux-2.6.12-rc2 |
527 528 529 530 531 532 533 |
if (ext3_inode_cachep == NULL) return -ENOMEM; return 0; } static void destroy_inodecache(void) { |
1a1d92c10 [PATCH] Really ig... |
534 |
kmem_cache_destroy(ext3_inode_cachep); |
1da177e4c Linux-2.6.12-rc2 |
535 |
} |
6cd37cda7 [PATCH] Fix ext3 ... |
536 |
static inline void ext3_show_quota_options(struct seq_file *seq, struct super_block *sb) |
8fc2751be [PATCH] disk quot... |
537 |
{ |
6cd37cda7 [PATCH] Fix ext3 ... |
538 |
#if defined(CONFIG_QUOTA) |
275abf5b0 [PATCH] ext3: ext... |
539 |
struct ext3_sb_info *sbi = EXT3_SB(sb); |
8fc2751be [PATCH] disk quot... |
540 |
|
1aeec4343 ext3: Support for... |
541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 |
if (sbi->s_jquota_fmt) { char *fmtname = ""; switch (sbi->s_jquota_fmt) { case QFMT_VFS_OLD: fmtname = "vfsold"; break; case QFMT_VFS_V0: fmtname = "vfsv0"; break; case QFMT_VFS_V1: fmtname = "vfsv1"; break; } seq_printf(seq, ",jqfmt=%s", fmtname); } |
8fc2751be [PATCH] disk quot... |
557 558 559 560 561 562 |
if (sbi->s_qf_names[USRQUOTA]) seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]); if (sbi->s_qf_names[GRPQUOTA]) seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]); |
e3c964359 ext3: mount flags... |
563 |
if (test_opt(sb, USRQUOTA)) |
8fc2751be [PATCH] disk quot... |
564 |
seq_puts(seq, ",usrquota"); |
e3c964359 ext3: mount flags... |
565 |
if (test_opt(sb, GRPQUOTA)) |
8fc2751be [PATCH] disk quot... |
566 567 |
seq_puts(seq, ",grpquota"); #endif |
6cd37cda7 [PATCH] Fix ext3 ... |
568 |
} |
3c4cec652 ext3: Improve err... |
569 570 571 572 573 574 575 576 577 578 579 580 |
static char *data_mode_string(unsigned long mode) { switch (mode) { case EXT3_MOUNT_JOURNAL_DATA: return "journal"; case EXT3_MOUNT_ORDERED_DATA: return "ordered"; case EXT3_MOUNT_WRITEBACK_DATA: return "writeback"; } return "unknown"; } |
571beed8d ext3: show all mo... |
581 582 583 584 585 |
/* * Show an option if * - it's set to a non-default value OR * - if the per-sb default is different from the global default */ |
34c80b1d9 vfs: switch ->sho... |
586 |
static int ext3_show_options(struct seq_file *seq, struct dentry *root) |
6cd37cda7 [PATCH] Fix ext3 ... |
587 |
{ |
34c80b1d9 vfs: switch ->sho... |
588 |
struct super_block *sb = root->d_sb; |
571beed8d ext3: show all mo... |
589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 |
struct ext3_sb_info *sbi = EXT3_SB(sb); struct ext3_super_block *es = sbi->s_es; unsigned long def_mount_opts; def_mount_opts = le32_to_cpu(es->s_default_mount_opts); if (sbi->s_sb_block != 1) seq_printf(seq, ",sb=%lu", sbi->s_sb_block); if (test_opt(sb, MINIX_DF)) seq_puts(seq, ",minixdf"); if (test_opt(sb, GRPID)) seq_puts(seq, ",grpid"); if (!test_opt(sb, GRPID) && (def_mount_opts & EXT3_DEFM_BSDGROUPS)) seq_puts(seq, ",nogrpid"); if (sbi->s_resuid != EXT3_DEF_RESUID || le16_to_cpu(es->s_def_resuid) != EXT3_DEF_RESUID) { seq_printf(seq, ",resuid=%u", sbi->s_resuid); } if (sbi->s_resgid != EXT3_DEF_RESGID || le16_to_cpu(es->s_def_resgid) != EXT3_DEF_RESGID) { seq_printf(seq, ",resgid=%u", sbi->s_resgid); } |
1eca93f9c ext3: change the ... |
611 |
if (test_opt(sb, ERRORS_RO)) { |
571beed8d ext3: show all mo... |
612 613 614 |
int def_errors = le16_to_cpu(es->s_errors); if (def_errors == EXT3_ERRORS_PANIC || |
1eca93f9c ext3: change the ... |
615 616 |
def_errors == EXT3_ERRORS_CONTINUE) { seq_puts(seq, ",errors=remount-ro"); |
571beed8d ext3: show all mo... |
617 618 |
} } |
1eca93f9c ext3: change the ... |
619 620 |
if (test_opt(sb, ERRORS_CONT)) seq_puts(seq, ",errors=continue"); |
571beed8d ext3: show all mo... |
621 622 623 624 625 626 |
if (test_opt(sb, ERRORS_PANIC)) seq_puts(seq, ",errors=panic"); if (test_opt(sb, NO_UID32)) seq_puts(seq, ",nouid32"); if (test_opt(sb, DEBUG)) seq_puts(seq, ",debug"); |
571beed8d ext3: show all mo... |
627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 |
#ifdef CONFIG_EXT3_FS_XATTR if (test_opt(sb, XATTR_USER)) seq_puts(seq, ",user_xattr"); if (!test_opt(sb, XATTR_USER) && (def_mount_opts & EXT3_DEFM_XATTR_USER)) { seq_puts(seq, ",nouser_xattr"); } #endif #ifdef CONFIG_EXT3_FS_POSIX_ACL if (test_opt(sb, POSIX_ACL)) seq_puts(seq, ",acl"); if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT3_DEFM_ACL)) seq_puts(seq, ",noacl"); #endif if (!test_opt(sb, RESERVATION)) seq_puts(seq, ",noreservation"); if (sbi->s_commit_interval) { seq_printf(seq, ",commit=%u", (unsigned) (sbi->s_commit_interval / HZ)); } |
0636c73ee ext3: make barrie... |
647 648 649 650 651 652 |
/* * Always display barrier state so it's clear what the status is. */ seq_puts(seq, ",barrier="); seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0"); |
e3c964359 ext3: mount flags... |
653 |
seq_printf(seq, ",data=%s", data_mode_string(test_opt(sb, DATA_FLAGS))); |
0e4fb5e28 ext3: add an opti... |
654 655 |
if (test_opt(sb, DATA_ERR_ABORT)) seq_puts(seq, ",data_err=abort"); |
dee1d3b62 ext3: make "norec... |
656 657 |
if (test_opt(sb, NOLOAD)) seq_puts(seq, ",norecovery"); |
6cd37cda7 [PATCH] Fix ext3 ... |
658 |
ext3_show_quota_options(seq, sb); |
8fc2751be [PATCH] disk quot... |
659 660 661 |
return 0; } |
1da177e4c Linux-2.6.12-rc2 |
662 |
|
fdb36673a [PATCH] knfsd: Ma... |
663 |
|
74af0baad ext3: new export ops |
664 665 |
static struct inode *ext3_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) |
fdb36673a [PATCH] knfsd: Ma... |
666 |
{ |
fdb36673a [PATCH] knfsd: Ma... |
667 |
struct inode *inode; |
fdb36673a [PATCH] knfsd: Ma... |
668 669 670 671 672 673 674 675 676 677 678 679 680 681 |
if (ino < EXT3_FIRST_INO(sb) && ino != EXT3_ROOT_INO) return ERR_PTR(-ESTALE); if (ino > le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count)) return ERR_PTR(-ESTALE); /* iget isn't really right if the inode is currently unallocated!! * * ext3_read_inode will return a bad_inode if the inode had been * deleted, so we should be safe. * * Currently we don't know the generation for parent directory, so * a generation of 0 means "accept any" */ |
473043dce iget: stop EXT3 f... |
682 683 684 685 |
inode = ext3_iget(sb, ino); if (IS_ERR(inode)) return ERR_CAST(inode); if (generation && inode->i_generation != generation) { |
fdb36673a [PATCH] knfsd: Ma... |
686 687 688 |
iput(inode); return ERR_PTR(-ESTALE); } |
74af0baad ext3: new export ops |
689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 |
return inode; } static struct dentry *ext3_fh_to_dentry(struct super_block *sb, struct fid *fid, int fh_len, int fh_type) { return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ext3_nfs_get_inode); } static struct dentry *ext3_fh_to_parent(struct super_block *sb, struct fid *fid, int fh_len, int fh_type) { return generic_fh_to_parent(sb, fid, fh_len, fh_type, ext3_nfs_get_inode); |
fdb36673a [PATCH] knfsd: Ma... |
705 |
} |
6b082b531 ext3: provide fun... |
706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 |
/* * Try to release metadata pages (indirect blocks, directories) which are * mapped via the block device. Since these pages could have journal heads * which would prevent try_to_free_buffers() from freeing them, we must use * jbd layer's try_to_free_buffers() function to release them. */ static int bdev_try_to_free_page(struct super_block *sb, struct page *page, gfp_t wait) { journal_t *journal = EXT3_SB(sb)->s_journal; WARN_ON(PageChecked(page)); if (!page_has_buffers(page)) return 0; if (journal) return journal_try_to_free_buffers(journal, page, wait & ~__GFP_WAIT); return try_to_free_buffers(page); } |
8fc2751be [PATCH] disk quot... |
725 |
#ifdef CONFIG_QUOTA |
1da177e4c Linux-2.6.12-rc2 |
726 727 |
#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group") #define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA)) |
1da177e4c Linux-2.6.12-rc2 |
728 729 730 731 732 |
static int ext3_write_dquot(struct dquot *dquot); static int ext3_acquire_dquot(struct dquot *dquot); static int ext3_release_dquot(struct dquot *dquot); static int ext3_mark_dquot_dirty(struct dquot *dquot); static int ext3_write_info(struct super_block *sb, int type); |
2fd83a4f3 quota: ext3: make... |
733 |
static int ext3_quota_on(struct super_block *sb, int type, int format_id, |
f00c9e44a quota: Fix deadlo... |
734 |
struct path *path); |
1da177e4c Linux-2.6.12-rc2 |
735 736 737 738 739 |
static int ext3_quota_on_mount(struct super_block *sb, int type); static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data, size_t len, loff_t off); static ssize_t ext3_quota_write(struct super_block *sb, int type, const char *data, size_t len, loff_t off); |
61e225dc3 const: make struc... |
740 |
static const struct dquot_operations ext3_quota_operations = { |
1da177e4c Linux-2.6.12-rc2 |
741 742 743 744 |
.write_dquot = ext3_write_dquot, .acquire_dquot = ext3_acquire_dquot, .release_dquot = ext3_release_dquot, .mark_dirty = ext3_mark_dquot_dirty, |
157091a2c ext3: Add default... |
745 746 747 |
.write_info = ext3_write_info, .alloc_dquot = dquot_alloc, .destroy_dquot = dquot_destroy, |
1da177e4c Linux-2.6.12-rc2 |
748 |
}; |
0d54b217a const: make struc... |
749 |
static const struct quotactl_ops ext3_qctl_operations = { |
1da177e4c Linux-2.6.12-rc2 |
750 |
.quota_on = ext3_quota_on, |
287a80958 quota: rename def... |
751 752 753 754 755 756 |
.quota_off = dquot_quota_off, .quota_sync = dquot_quota_sync, .get_info = dquot_get_dqinfo, .set_info = dquot_set_dqinfo, .get_dqblk = dquot_get_dqblk, .set_dqblk = dquot_set_dqblk |
1da177e4c Linux-2.6.12-rc2 |
757 758 |
}; #endif |
ee9b6d61a [PATCH] Mark stru... |
759 |
static const struct super_operations ext3_sops = { |
1da177e4c Linux-2.6.12-rc2 |
760 761 |
.alloc_inode = ext3_alloc_inode, .destroy_inode = ext3_destroy_inode, |
1da177e4c Linux-2.6.12-rc2 |
762 763 |
.write_inode = ext3_write_inode, .dirty_inode = ext3_dirty_inode, |
785c4bcc0 ext3: Add fixed t... |
764 |
.drop_inode = ext3_drop_inode, |
ac14a95b5 convert ext3 to -... |
765 |
.evict_inode = ext3_evict_inode, |
1da177e4c Linux-2.6.12-rc2 |
766 |
.put_super = ext3_put_super, |
1da177e4c Linux-2.6.12-rc2 |
767 |
.sync_fs = ext3_sync_fs, |
c4be0c1dc filesystem freeze... |
768 769 |
.freeze_fs = ext3_freeze, .unfreeze_fs = ext3_unfreeze, |
1da177e4c Linux-2.6.12-rc2 |
770 771 |
.statfs = ext3_statfs, .remount_fs = ext3_remount, |
8fc2751be [PATCH] disk quot... |
772 |
.show_options = ext3_show_options, |
1da177e4c Linux-2.6.12-rc2 |
773 774 775 776 |
#ifdef CONFIG_QUOTA .quota_read = ext3_quota_read, .quota_write = ext3_quota_write, #endif |
6b082b531 ext3: provide fun... |
777 |
.bdev_try_to_free_page = bdev_try_to_free_page, |
1da177e4c Linux-2.6.12-rc2 |
778 |
}; |
396551644 exportfs: make st... |
779 |
static const struct export_operations ext3_export_ops = { |
74af0baad ext3: new export ops |
780 781 |
.fh_to_dentry = ext3_fh_to_dentry, .fh_to_parent = ext3_fh_to_parent, |
1da177e4c Linux-2.6.12-rc2 |
782 783 784 785 786 787 |
.get_parent = ext3_get_parent, }; enum { Opt_bsd_df, Opt_minix_df, Opt_grpid, Opt_nogrpid, Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro, |
2860b733f [PATCH] remove CO... |
788 |
Opt_nouid32, Opt_nocheck, Opt_debug, Opt_oldalloc, Opt_orlov, |
1da177e4c Linux-2.6.12-rc2 |
789 |
Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl, |
ade1a29e1 [PATCH] ext3: Add... |
790 |
Opt_reservation, Opt_noreservation, Opt_noload, Opt_nobh, Opt_bh, |
71b962574 [PATCH] ext3: ext... |
791 |
Opt_commit, Opt_journal_update, Opt_journal_inum, Opt_journal_dev, |
1da177e4c Linux-2.6.12-rc2 |
792 |
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback, |
0e4fb5e28 ext3: add an opti... |
793 |
Opt_data_err_abort, Opt_data_err_ignore, |
1da177e4c Linux-2.6.12-rc2 |
794 |
Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota, |
1aeec4343 ext3: Support for... |
795 |
Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota, |
0636c73ee ext3: make barrie... |
796 797 |
Opt_noquota, Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err, Opt_resize, Opt_usrquota, Opt_grpquota |
1da177e4c Linux-2.6.12-rc2 |
798 |
}; |
a447c0932 vfs: Use const fo... |
799 |
static const match_table_t tokens = { |
1da177e4c Linux-2.6.12-rc2 |
800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 |
{Opt_bsd_df, "bsddf"}, {Opt_minix_df, "minixdf"}, {Opt_grpid, "grpid"}, {Opt_grpid, "bsdgroups"}, {Opt_nogrpid, "nogrpid"}, {Opt_nogrpid, "sysvgroups"}, {Opt_resgid, "resgid=%u"}, {Opt_resuid, "resuid=%u"}, {Opt_sb, "sb=%u"}, {Opt_err_cont, "errors=continue"}, {Opt_err_panic, "errors=panic"}, {Opt_err_ro, "errors=remount-ro"}, {Opt_nouid32, "nouid32"}, {Opt_nocheck, "nocheck"}, {Opt_nocheck, "check=none"}, |
1da177e4c Linux-2.6.12-rc2 |
815 816 817 818 819 820 821 822 823 824 |
{Opt_debug, "debug"}, {Opt_oldalloc, "oldalloc"}, {Opt_orlov, "orlov"}, {Opt_user_xattr, "user_xattr"}, {Opt_nouser_xattr, "nouser_xattr"}, {Opt_acl, "acl"}, {Opt_noacl, "noacl"}, {Opt_reservation, "reservation"}, {Opt_noreservation, "noreservation"}, {Opt_noload, "noload"}, |
dee1d3b62 ext3: make "norec... |
825 |
{Opt_noload, "norecovery"}, |
1da177e4c Linux-2.6.12-rc2 |
826 |
{Opt_nobh, "nobh"}, |
ade1a29e1 [PATCH] ext3: Add... |
827 |
{Opt_bh, "bh"}, |
1da177e4c Linux-2.6.12-rc2 |
828 829 830 |
{Opt_commit, "commit=%u"}, {Opt_journal_update, "journal=update"}, {Opt_journal_inum, "journal=%u"}, |
71b962574 [PATCH] ext3: ext... |
831 |
{Opt_journal_dev, "journal_dev=%u"}, |
1da177e4c Linux-2.6.12-rc2 |
832 833 834 835 |
{Opt_abort, "abort"}, {Opt_data_journal, "data=journal"}, {Opt_data_ordered, "data=ordered"}, {Opt_data_writeback, "data=writeback"}, |
0e4fb5e28 ext3: add an opti... |
836 837 |
{Opt_data_err_abort, "data_err=abort"}, {Opt_data_err_ignore, "data_err=ignore"}, |
1da177e4c Linux-2.6.12-rc2 |
838 839 840 841 842 843 |
{Opt_offusrjquota, "usrjquota="}, {Opt_usrjquota, "usrjquota=%s"}, {Opt_offgrpjquota, "grpjquota="}, {Opt_grpjquota, "grpjquota=%s"}, {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, |
1aeec4343 ext3: Support for... |
844 |
{Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, |
8fc2751be [PATCH] disk quot... |
845 |
{Opt_grpquota, "grpquota"}, |
1f54587be [PATCH] quota: ex... |
846 847 |
{Opt_noquota, "noquota"}, {Opt_quota, "quota"}, |
8fc2751be [PATCH] disk quot... |
848 |
{Opt_usrquota, "usrquota"}, |
1da177e4c Linux-2.6.12-rc2 |
849 |
{Opt_barrier, "barrier=%u"}, |
0636c73ee ext3: make barrie... |
850 851 |
{Opt_barrier, "barrier"}, {Opt_nobarrier, "nobarrier"}, |
1da177e4c Linux-2.6.12-rc2 |
852 |
{Opt_resize, "resize"}, |
92587216f ext3: fix mount o... |
853 |
{Opt_err, NULL}, |
1da177e4c Linux-2.6.12-rc2 |
854 |
}; |
4cf46b67e ext3: Unify log m... |
855 |
static ext3_fsblk_t get_sb_block(void **data, struct super_block *sb) |
1da177e4c Linux-2.6.12-rc2 |
856 |
{ |
e9ad5620b [PATCH] ext3: Mor... |
857 858 |
ext3_fsblk_t sb_block; char *options = (char *) *data; |
1da177e4c Linux-2.6.12-rc2 |
859 860 861 862 |
if (!options || strncmp(options, "sb=", 3) != 0) return 1; /* Default location */ options += 3; |
43d23f903 [PATCH] ext3_fsbl... |
863 |
/*todo: use simple_strtoll with >32bit ext3 */ |
1da177e4c Linux-2.6.12-rc2 |
864 865 |
sb_block = simple_strtoul(options, &options, 0); if (*options && *options != ',') { |
4cf46b67e ext3: Unify log m... |
866 |
ext3_msg(sb, "error: invalid sb specification: %s", |
1da177e4c Linux-2.6.12-rc2 |
867 868 869 870 871 872 873 874 |
(char *) *data); return 1; } if (*options == ',') options++; *data = (void *) options; return sb_block; } |
e1f5c67a1 ext3: trivial quo... |
875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 |
#ifdef CONFIG_QUOTA static int set_qf_name(struct super_block *sb, int qtype, substring_t *args) { struct ext3_sb_info *sbi = EXT3_SB(sb); char *qname; if (sb_any_quota_loaded(sb) && !sbi->s_qf_names[qtype]) { ext3_msg(sb, KERN_ERR, "Cannot change journaled " "quota options when quota turned on"); return 0; } qname = match_strdup(args); if (!qname) { ext3_msg(sb, KERN_ERR, "Not enough memory for storing quotafile name"); return 0; } if (sbi->s_qf_names[qtype] && strcmp(sbi->s_qf_names[qtype], qname)) { ext3_msg(sb, KERN_ERR, "%s quota file already specified", QTYPE2NAME(qtype)); kfree(qname); return 0; } sbi->s_qf_names[qtype] = qname; if (strchr(sbi->s_qf_names[qtype], '/')) { ext3_msg(sb, KERN_ERR, "quotafile must be on filesystem root"); kfree(sbi->s_qf_names[qtype]); sbi->s_qf_names[qtype] = NULL; return 0; } set_opt(sbi->s_mount_opt, QUOTA); return 1; } static int clear_qf_name(struct super_block *sb, int qtype) { struct ext3_sb_info *sbi = EXT3_SB(sb); if (sb_any_quota_loaded(sb) && sbi->s_qf_names[qtype]) { ext3_msg(sb, KERN_ERR, "Cannot change journaled quota options" " when quota turned on"); return 0; } /* * The space will be released later when all options are confirmed * to be correct */ sbi->s_qf_names[qtype] = NULL; return 1; } #endif |
71b962574 [PATCH] ext3: ext... |
931 |
static int parse_options (char *options, struct super_block *sb, |
eee194e76 [PATCH] ext3: ino... |
932 |
unsigned int *inum, unsigned long *journal_devnum, |
43d23f903 [PATCH] ext3_fsbl... |
933 |
ext3_fsblk_t *n_blocks_count, int is_remount) |
1da177e4c Linux-2.6.12-rc2 |
934 935 936 937 938 939 940 |
{ struct ext3_sb_info *sbi = EXT3_SB(sb); char * p; substring_t args[MAX_OPT_ARGS]; int data_opt = 0; int option; #ifdef CONFIG_QUOTA |
e1f5c67a1 ext3: trivial quo... |
941 |
int qfmt; |
1da177e4c Linux-2.6.12-rc2 |
942 943 944 945 946 947 948 949 950 |
#endif if (!options) return 1; while ((p = strsep (&options, ",")) != NULL) { int token; if (!*p) continue; |
0636c73ee ext3: make barrie... |
951 952 953 954 955 |
/* * Initialize args struct so we know whether arg was * found; some options take optional arguments. */ args[0].to = args[0].from = 0; |
1da177e4c Linux-2.6.12-rc2 |
956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 |
token = match_token(p, tokens, args); switch (token) { case Opt_bsd_df: clear_opt (sbi->s_mount_opt, MINIX_DF); break; case Opt_minix_df: set_opt (sbi->s_mount_opt, MINIX_DF); break; case Opt_grpid: set_opt (sbi->s_mount_opt, GRPID); break; case Opt_nogrpid: clear_opt (sbi->s_mount_opt, GRPID); break; case Opt_resuid: if (match_int(&args[0], &option)) return 0; sbi->s_resuid = option; break; case Opt_resgid: if (match_int(&args[0], &option)) return 0; sbi->s_resgid = option; break; case Opt_sb: /* handled by get_sb_block() instead of here */ /* *sb_block = match_int(&args[0]); */ break; case Opt_err_panic: clear_opt (sbi->s_mount_opt, ERRORS_CONT); clear_opt (sbi->s_mount_opt, ERRORS_RO); set_opt (sbi->s_mount_opt, ERRORS_PANIC); break; case Opt_err_ro: clear_opt (sbi->s_mount_opt, ERRORS_CONT); clear_opt (sbi->s_mount_opt, ERRORS_PANIC); set_opt (sbi->s_mount_opt, ERRORS_RO); break; case Opt_err_cont: clear_opt (sbi->s_mount_opt, ERRORS_RO); clear_opt (sbi->s_mount_opt, ERRORS_PANIC); set_opt (sbi->s_mount_opt, ERRORS_CONT); break; case Opt_nouid32: set_opt (sbi->s_mount_opt, NO_UID32); break; |
1da177e4c Linux-2.6.12-rc2 |
1002 1003 1004 1005 1006 1007 1008 |
case Opt_nocheck: clear_opt (sbi->s_mount_opt, CHECK); break; case Opt_debug: set_opt (sbi->s_mount_opt, DEBUG); break; case Opt_oldalloc: |
fbc854027 ext3: remove depr... |
1009 1010 |
ext3_msg(sb, KERN_WARNING, "Ignoring deprecated oldalloc option"); |
1da177e4c Linux-2.6.12-rc2 |
1011 1012 |
break; case Opt_orlov: |
fbc854027 ext3: remove depr... |
1013 1014 |
ext3_msg(sb, KERN_WARNING, "Ignoring deprecated orlov option"); |
1da177e4c Linux-2.6.12-rc2 |
1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 |
break; #ifdef CONFIG_EXT3_FS_XATTR case Opt_user_xattr: set_opt (sbi->s_mount_opt, XATTR_USER); break; case Opt_nouser_xattr: clear_opt (sbi->s_mount_opt, XATTR_USER); break; #else case Opt_user_xattr: case Opt_nouser_xattr: |
4cf46b67e ext3: Unify log m... |
1026 1027 |
ext3_msg(sb, KERN_INFO, "(no)user_xattr options not supported"); |
1da177e4c Linux-2.6.12-rc2 |
1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 |
break; #endif #ifdef CONFIG_EXT3_FS_POSIX_ACL case Opt_acl: set_opt(sbi->s_mount_opt, POSIX_ACL); break; case Opt_noacl: clear_opt(sbi->s_mount_opt, POSIX_ACL); break; #else case Opt_acl: case Opt_noacl: |
4cf46b67e ext3: Unify log m... |
1040 1041 |
ext3_msg(sb, KERN_INFO, "(no)acl options not supported"); |
1da177e4c Linux-2.6.12-rc2 |
1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 |
break; #endif case Opt_reservation: set_opt(sbi->s_mount_opt, RESERVATION); break; case Opt_noreservation: clear_opt(sbi->s_mount_opt, RESERVATION); break; case Opt_journal_update: /* @@@ FIXME */ /* Eventually we will want to be able to create a journal file here. For now, only allow the user to specify an existing inode to be the journal file. */ if (is_remount) { |
4cf46b67e ext3: Unify log m... |
1057 1058 |
ext3_msg(sb, KERN_ERR, "error: cannot specify " "journal on remount"); |
1da177e4c Linux-2.6.12-rc2 |
1059 1060 1061 1062 1063 1064 |
return 0; } set_opt (sbi->s_mount_opt, UPDATE_JOURNAL); break; case Opt_journal_inum: if (is_remount) { |
4cf46b67e ext3: Unify log m... |
1065 1066 |
ext3_msg(sb, KERN_ERR, "error: cannot specify " "journal on remount"); |
1da177e4c Linux-2.6.12-rc2 |
1067 1068 1069 1070 1071 1072 |
return 0; } if (match_int(&args[0], &option)) return 0; *inum = option; break; |
71b962574 [PATCH] ext3: ext... |
1073 1074 |
case Opt_journal_dev: if (is_remount) { |
4cf46b67e ext3: Unify log m... |
1075 1076 |
ext3_msg(sb, KERN_ERR, "error: cannot specify " "journal on remount"); |
71b962574 [PATCH] ext3: ext... |
1077 1078 1079 1080 1081 1082 |
return 0; } if (match_int(&args[0], &option)) return 0; *journal_devnum = option; break; |
1da177e4c Linux-2.6.12-rc2 |
1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 |
case Opt_noload: set_opt (sbi->s_mount_opt, NOLOAD); break; case Opt_commit: if (match_int(&args[0], &option)) return 0; if (option < 0) return 0; if (option == 0) option = JBD_DEFAULT_MAX_COMMIT_AGE; sbi->s_commit_interval = HZ * option; break; case Opt_data_journal: data_opt = EXT3_MOUNT_JOURNAL_DATA; goto datacheck; case Opt_data_ordered: data_opt = EXT3_MOUNT_ORDERED_DATA; goto datacheck; case Opt_data_writeback: data_opt = EXT3_MOUNT_WRITEBACK_DATA; datacheck: if (is_remount) { |
e3c964359 ext3: mount flags... |
1105 |
if (test_opt(sb, DATA_FLAGS) == data_opt) |
3c4cec652 ext3: Improve err... |
1106 |
break; |
4cf46b67e ext3: Unify log m... |
1107 1108 |
ext3_msg(sb, KERN_ERR, "error: cannot change " |
3c4cec652 ext3: Improve err... |
1109 1110 |
"data mode on remount. The filesystem " "is mounted in data=%s mode and you " |
4cf46b67e ext3: Unify log m... |
1111 |
"try to remount it in data=%s mode.", |
e3c964359 ext3: mount flags... |
1112 1113 |
data_mode_string(test_opt(sb, DATA_FLAGS)), |
3c4cec652 ext3: Improve err... |
1114 1115 |
data_mode_string(data_opt)); return 0; |
1da177e4c Linux-2.6.12-rc2 |
1116 |
} else { |
e3c964359 ext3: mount flags... |
1117 |
clear_opt(sbi->s_mount_opt, DATA_FLAGS); |
1da177e4c Linux-2.6.12-rc2 |
1118 1119 1120 |
sbi->s_mount_opt |= data_opt; } break; |
0e4fb5e28 ext3: add an opti... |
1121 1122 1123 1124 1125 1126 |
case Opt_data_err_abort: set_opt(sbi->s_mount_opt, DATA_ERR_ABORT); break; case Opt_data_err_ignore: clear_opt(sbi->s_mount_opt, DATA_ERR_ABORT); break; |
1da177e4c Linux-2.6.12-rc2 |
1127 1128 |
#ifdef CONFIG_QUOTA case Opt_usrjquota: |
e1f5c67a1 ext3: trivial quo... |
1129 |
if (!set_qf_name(sb, USRQUOTA, &args[0])) |
1da177e4c Linux-2.6.12-rc2 |
1130 |
return 0; |
e1f5c67a1 ext3: trivial quo... |
1131 1132 1133 |
break; case Opt_grpjquota: if (!set_qf_name(sb, GRPQUOTA, &args[0])) |
1da177e4c Linux-2.6.12-rc2 |
1134 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1135 1136 |
break; case Opt_offusrjquota: |
e1f5c67a1 ext3: trivial quo... |
1137 1138 1139 |
if (!clear_qf_name(sb, USRQUOTA)) return 0; break; |
1da177e4c Linux-2.6.12-rc2 |
1140 |
case Opt_offgrpjquota: |
e1f5c67a1 ext3: trivial quo... |
1141 |
if (!clear_qf_name(sb, GRPQUOTA)) |
1da177e4c Linux-2.6.12-rc2 |
1142 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1143 1144 |
break; case Opt_jqfmt_vfsold: |
d06bf1d25 ext3: correct mou... |
1145 1146 |
qfmt = QFMT_VFS_OLD; goto set_qf_format; |
1da177e4c Linux-2.6.12-rc2 |
1147 |
case Opt_jqfmt_vfsv0: |
d06bf1d25 ext3: correct mou... |
1148 |
qfmt = QFMT_VFS_V0; |
1aeec4343 ext3: Support for... |
1149 1150 1151 |
goto set_qf_format; case Opt_jqfmt_vfsv1: qfmt = QFMT_VFS_V1; |
d06bf1d25 ext3: correct mou... |
1152 |
set_qf_format: |
ee0d5ffe0 ext3: Use sb_any_... |
1153 |
if (sb_any_quota_loaded(sb) && |
d06bf1d25 ext3: correct mou... |
1154 |
sbi->s_jquota_fmt != qfmt) { |
4cf46b67e ext3: Unify log m... |
1155 |
ext3_msg(sb, KERN_ERR, "error: cannot change " |
d06bf1d25 ext3: correct mou... |
1156 |
"journaled quota options when " |
4cf46b67e ext3: Unify log m... |
1157 |
"quota turned on."); |
d06bf1d25 ext3: correct mou... |
1158 1159 1160 |
return 0; } sbi->s_jquota_fmt = qfmt; |
1da177e4c Linux-2.6.12-rc2 |
1161 |
break; |
1f54587be [PATCH] quota: ex... |
1162 |
case Opt_quota: |
8fc2751be [PATCH] disk quot... |
1163 1164 1165 1166 1167 |
case Opt_usrquota: set_opt(sbi->s_mount_opt, QUOTA); set_opt(sbi->s_mount_opt, USRQUOTA); break; case Opt_grpquota: |
1f54587be [PATCH] quota: ex... |
1168 |
set_opt(sbi->s_mount_opt, QUOTA); |
8fc2751be [PATCH] disk quot... |
1169 |
set_opt(sbi->s_mount_opt, GRPQUOTA); |
1f54587be [PATCH] quota: ex... |
1170 1171 |
break; case Opt_noquota: |
ee0d5ffe0 ext3: Use sb_any_... |
1172 |
if (sb_any_quota_loaded(sb)) { |
4cf46b67e ext3: Unify log m... |
1173 1174 |
ext3_msg(sb, KERN_ERR, "error: cannot change " "quota options when quota turned on."); |
1f54587be [PATCH] quota: ex... |
1175 1176 1177 |
return 0; } clear_opt(sbi->s_mount_opt, QUOTA); |
8fc2751be [PATCH] disk quot... |
1178 1179 |
clear_opt(sbi->s_mount_opt, USRQUOTA); clear_opt(sbi->s_mount_opt, GRPQUOTA); |
1f54587be [PATCH] quota: ex... |
1180 |
break; |
1da177e4c Linux-2.6.12-rc2 |
1181 |
#else |
8fc2751be [PATCH] disk quot... |
1182 1183 1184 |
case Opt_quota: case Opt_usrquota: case Opt_grpquota: |
4cf46b67e ext3: Unify log m... |
1185 1186 |
ext3_msg(sb, KERN_ERR, "error: quota options not supported."); |
fa1ff1e02 ext3: fix mount m... |
1187 |
break; |
1da177e4c Linux-2.6.12-rc2 |
1188 1189 1190 1191 1192 1193 |
case Opt_usrjquota: case Opt_grpjquota: case Opt_offusrjquota: case Opt_offgrpjquota: case Opt_jqfmt_vfsold: case Opt_jqfmt_vfsv0: |
1aeec4343 ext3: Support for... |
1194 |
case Opt_jqfmt_vfsv1: |
4cf46b67e ext3: Unify log m... |
1195 1196 1197 |
ext3_msg(sb, KERN_ERR, "error: journaled quota options not " "supported."); |
1da177e4c Linux-2.6.12-rc2 |
1198 |
break; |
1f54587be [PATCH] quota: ex... |
1199 1200 |
case Opt_noquota: break; |
1da177e4c Linux-2.6.12-rc2 |
1201 1202 1203 1204 |
#endif case Opt_abort: set_opt(sbi->s_mount_opt, ABORT); break; |
0636c73ee ext3: make barrie... |
1205 1206 1207 |
case Opt_nobarrier: clear_opt(sbi->s_mount_opt, BARRIER); break; |
1da177e4c Linux-2.6.12-rc2 |
1208 |
case Opt_barrier: |
0636c73ee ext3: make barrie... |
1209 1210 1211 1212 1213 |
if (args[0].from) { if (match_int(&args[0], &option)) return 0; } else option = 1; /* No argument, default to 1 */ |
1da177e4c Linux-2.6.12-rc2 |
1214 1215 1216 1217 1218 1219 1220 1221 |
if (option) set_opt(sbi->s_mount_opt, BARRIER); else clear_opt(sbi->s_mount_opt, BARRIER); break; case Opt_ignore: break; case Opt_resize: |
08c6a96fd [PATCH] ext3: fix... |
1222 |
if (!is_remount) { |
4cf46b67e ext3: Unify log m... |
1223 1224 1225 |
ext3_msg(sb, KERN_ERR, "error: resize option only available " "for remount"); |
1da177e4c Linux-2.6.12-rc2 |
1226 1227 |
return 0; } |
c7f1721ef [PATCH] coverity:... |
1228 1229 |
if (match_int(&args[0], &option) != 0) return 0; |
1da177e4c Linux-2.6.12-rc2 |
1230 1231 1232 |
*n_blocks_count = option; break; case Opt_nobh: |
4c4d39012 ext3: remove vest... |
1233 1234 |
ext3_msg(sb, KERN_WARNING, "warning: ignoring deprecated nobh option"); |
1da177e4c Linux-2.6.12-rc2 |
1235 |
break; |
ade1a29e1 [PATCH] ext3: Add... |
1236 |
case Opt_bh: |
4c4d39012 ext3: remove vest... |
1237 1238 |
ext3_msg(sb, KERN_WARNING, "warning: ignoring deprecated bh option"); |
ade1a29e1 [PATCH] ext3: Add... |
1239 |
break; |
1da177e4c Linux-2.6.12-rc2 |
1240 |
default: |
4cf46b67e ext3: Unify log m... |
1241 1242 1243 |
ext3_msg(sb, KERN_ERR, "error: unrecognized mount option \"%s\" " "or missing value", p); |
1da177e4c Linux-2.6.12-rc2 |
1244 1245 1246 1247 |
return 0; } } #ifdef CONFIG_QUOTA |
8fc2751be [PATCH] disk quot... |
1248 |
if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) { |
e3c964359 ext3: mount flags... |
1249 |
if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA]) |
8fc2751be [PATCH] disk quot... |
1250 |
clear_opt(sbi->s_mount_opt, USRQUOTA); |
e3c964359 ext3: mount flags... |
1251 |
if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA]) |
8fc2751be [PATCH] disk quot... |
1252 |
clear_opt(sbi->s_mount_opt, GRPQUOTA); |
e1f5c67a1 ext3: trivial quo... |
1253 |
if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) { |
4cf46b67e ext3: Unify log m... |
1254 1255 |
ext3_msg(sb, KERN_ERR, "error: old and new quota " "format mixing."); |
8fc2751be [PATCH] disk quot... |
1256 1257 1258 1259 |
return 0; } if (!sbi->s_jquota_fmt) { |
4cf46b67e ext3: Unify log m... |
1260 1261 |
ext3_msg(sb, KERN_ERR, "error: journaled quota format " "not specified."); |
8fc2751be [PATCH] disk quot... |
1262 1263 1264 1265 |
return 0; } } else { if (sbi->s_jquota_fmt) { |
4cf46b67e ext3: Unify log m... |
1266 |
ext3_msg(sb, KERN_ERR, "error: journaled quota format " |
99aeaf639 ext3: fix typos i... |
1267 |
"specified with no journaling " |
4cf46b67e ext3: Unify log m... |
1268 |
"enabled."); |
8fc2751be [PATCH] disk quot... |
1269 1270 |
return 0; } |
1da177e4c Linux-2.6.12-rc2 |
1271 1272 |
} #endif |
1da177e4c Linux-2.6.12-rc2 |
1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 |
return 1; } static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es, int read_only) { struct ext3_sb_info *sbi = EXT3_SB(sb); int res = 0; if (le32_to_cpu(es->s_rev_level) > EXT3_MAX_SUPP_REV) { |
4cf46b67e ext3: Unify log m... |
1283 1284 1285 |
ext3_msg(sb, KERN_ERR, "error: revision level too high, " "forcing read-only mode"); |
1da177e4c Linux-2.6.12-rc2 |
1286 1287 1288 1289 1290 |
res = MS_RDONLY; } if (read_only) return res; if (!(sbi->s_mount_state & EXT3_VALID_FS)) |
4cf46b67e ext3: Unify log m... |
1291 1292 1293 |
ext3_msg(sb, KERN_WARNING, "warning: mounting unchecked fs, " "running e2fsck is recommended"); |
1da177e4c Linux-2.6.12-rc2 |
1294 |
else if ((sbi->s_mount_state & EXT3_ERROR_FS)) |
4cf46b67e ext3: Unify log m... |
1295 1296 1297 |
ext3_msg(sb, KERN_WARNING, "warning: mounting fs with errors, " "running e2fsck is recommended"); |
df0d6b8ff ext3: Cleanup ext... |
1298 |
else if ((__s16) le16_to_cpu(es->s_max_mnt_count) > 0 && |
1da177e4c Linux-2.6.12-rc2 |
1299 |
le16_to_cpu(es->s_mnt_count) >= |
df0d6b8ff ext3: Cleanup ext... |
1300 |
le16_to_cpu(es->s_max_mnt_count)) |
4cf46b67e ext3: Unify log m... |
1301 1302 1303 |
ext3_msg(sb, KERN_WARNING, "warning: maximal mount count reached, " "running e2fsck is recommended"); |
1da177e4c Linux-2.6.12-rc2 |
1304 1305 1306 |
else if (le32_to_cpu(es->s_checkinterval) && (le32_to_cpu(es->s_lastcheck) + le32_to_cpu(es->s_checkinterval) <= get_seconds())) |
4cf46b67e ext3: Unify log m... |
1307 1308 1309 |
ext3_msg(sb, KERN_WARNING, "warning: checktime reached, " "running e2fsck is recommended"); |
1da177e4c Linux-2.6.12-rc2 |
1310 1311 1312 1313 1314 |
#if 0 /* @@@ We _will_ want to clear the valid bit if we find inconsistencies, to force a fsck at reboot. But for a plain journaled filesystem we can keep it set as valid forever! :) */ |
e7f23ebde ext3: convert byt... |
1315 |
es->s_state &= cpu_to_le16(~EXT3_VALID_FS); |
1da177e4c Linux-2.6.12-rc2 |
1316 |
#endif |
df0d6b8ff ext3: Cleanup ext... |
1317 |
if (!le16_to_cpu(es->s_max_mnt_count)) |
1da177e4c Linux-2.6.12-rc2 |
1318 |
es->s_max_mnt_count = cpu_to_le16(EXT3_DFL_MAX_MNT_COUNT); |
50e8a2890 ext3: replace all... |
1319 |
le16_add_cpu(&es->s_mnt_count, 1); |
1da177e4c Linux-2.6.12-rc2 |
1320 1321 1322 1323 1324 1325 |
es->s_mtime = cpu_to_le32(get_seconds()); ext3_update_dynamic_rev(sb); EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); ext3_commit_super(sb, es, 1); if (test_opt(sb, DEBUG)) |
4cf46b67e ext3: Unify log m... |
1326 1327 |
ext3_msg(sb, KERN_INFO, "[bs=%lu, gc=%lu, " "bpg=%lu, ipg=%lu, mo=%04lx]", |
1da177e4c Linux-2.6.12-rc2 |
1328 1329 1330 1331 1332 |
sb->s_blocksize, sbi->s_groups_count, EXT3_BLOCKS_PER_GROUP(sb), EXT3_INODES_PER_GROUP(sb), sbi->s_mount_opt); |
1da177e4c Linux-2.6.12-rc2 |
1333 1334 |
if (EXT3_SB(sb)->s_journal->j_inode == NULL) { char b[BDEVNAME_SIZE]; |
4cf46b67e ext3: Unify log m... |
1335 |
ext3_msg(sb, KERN_INFO, "using external journal on %s", |
1da177e4c Linux-2.6.12-rc2 |
1336 1337 |
bdevname(EXT3_SB(sb)->s_journal->j_dev, b)); } else { |
4cf46b67e ext3: Unify log m... |
1338 |
ext3_msg(sb, KERN_INFO, "using internal journal"); |
1da177e4c Linux-2.6.12-rc2 |
1339 |
} |
d71bc6db5 ext3: add cleanca... |
1340 |
cleancache_init_fs(sb); |
1da177e4c Linux-2.6.12-rc2 |
1341 1342 1343 1344 |
return res; } /* Called at mount-time, super-block is locked */ |
197cd65ac ext[234]: use ext... |
1345 |
static int ext3_check_descriptors(struct super_block *sb) |
1da177e4c Linux-2.6.12-rc2 |
1346 1347 |
{ struct ext3_sb_info *sbi = EXT3_SB(sb); |
1da177e4c Linux-2.6.12-rc2 |
1348 1349 1350 |
int i; ext3_debug ("Checking group descriptors"); |
197cd65ac ext[234]: use ext... |
1351 1352 |
for (i = 0; i < sbi->s_groups_count; i++) { struct ext3_group_desc *gdp = ext3_get_group_desc(sb, i, NULL); |
1eaafeae4 ext3: use ext3_gr... |
1353 1354 |
ext3_fsblk_t first_block = ext3_group_first_block_no(sb, i); ext3_fsblk_t last_block; |
197cd65ac ext[234]: use ext... |
1355 |
|
855565e81 [PATCH] fix ext3 ... |
1356 1357 1358 1359 1360 |
if (i == sbi->s_groups_count - 1) last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1; else last_block = first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1); |
855565e81 [PATCH] fix ext3 ... |
1361 1362 |
if (le32_to_cpu(gdp->bg_block_bitmap) < first_block || le32_to_cpu(gdp->bg_block_bitmap) > last_block) |
1da177e4c Linux-2.6.12-rc2 |
1363 1364 1365 1366 1367 1368 1369 1370 |
{ ext3_error (sb, "ext3_check_descriptors", "Block bitmap for group %d" " not in group (block %lu)!", i, (unsigned long) le32_to_cpu(gdp->bg_block_bitmap)); return 0; } |
855565e81 [PATCH] fix ext3 ... |
1371 1372 |
if (le32_to_cpu(gdp->bg_inode_bitmap) < first_block || le32_to_cpu(gdp->bg_inode_bitmap) > last_block) |
1da177e4c Linux-2.6.12-rc2 |
1373 1374 1375 1376 1377 1378 1379 1380 |
{ ext3_error (sb, "ext3_check_descriptors", "Inode bitmap for group %d" " not in group (block %lu)!", i, (unsigned long) le32_to_cpu(gdp->bg_inode_bitmap)); return 0; } |
855565e81 [PATCH] fix ext3 ... |
1381 |
if (le32_to_cpu(gdp->bg_inode_table) < first_block || |
780dcdb21 fix inode_table t... |
1382 |
le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group - 1 > |
855565e81 [PATCH] fix ext3 ... |
1383 |
last_block) |
1da177e4c Linux-2.6.12-rc2 |
1384 1385 1386 1387 1388 1389 1390 1391 |
{ ext3_error (sb, "ext3_check_descriptors", "Inode table for group %d" " not in group (block %lu)!", i, (unsigned long) le32_to_cpu(gdp->bg_inode_table)); return 0; } |
1da177e4c Linux-2.6.12-rc2 |
1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 |
} sbi->s_es->s_free_blocks_count=cpu_to_le32(ext3_count_free_blocks(sb)); sbi->s_es->s_free_inodes_count=cpu_to_le32(ext3_count_free_inodes(sb)); return 1; } /* ext3_orphan_cleanup() walks a singly-linked list of inodes (starting at * the superblock) which were deleted from all directories, but held open by * a process at the time of a crash. We walk the list and try to delete these * inodes at recovery time (only with a read-write filesystem). * * In order to keep the orphan inode chain consistent during traversal (in * case of crash during recovery), we link each inode into the superblock * orphan list_head and handle it the same way as an inode deletion during * normal operation (which journals the operations for us). * * We only do an iget() and an iput() on each inode, which is very safe if we * accidentally point at an in-use or already deleted inode. The worst that * can happen in this case is that we get a "bit already cleared" message from * ext3_free_inode(). The only reason we would point at a wrong inode is if * e2fsck was run on this filesystem, and it must have already done the orphan * inode cleanup for us, so we can safely abort without any further action. */ static void ext3_orphan_cleanup (struct super_block * sb, struct ext3_super_block * es) { unsigned int s_flags = sb->s_flags; int nr_orphans = 0, nr_truncates = 0; #ifdef CONFIG_QUOTA int i; #endif if (!es->s_last_orphan) { jbd_debug(4, "no orphan inodes to clean up "); return; } |
a8f48a956 [PATCH] ext3/4: d... |
1430 |
if (bdev_read_only(sb->s_bdev)) { |
4cf46b67e ext3: Unify log m... |
1431 1432 |
ext3_msg(sb, KERN_ERR, "error: write access " "unavailable, skipping orphan cleanup."); |
a8f48a956 [PATCH] ext3/4: d... |
1433 1434 |
return; } |
ce654b37f ext3: skip orphan... |
1435 1436 1437 1438 1439 |
/* Check if feature set allows readwrite operations */ if (EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP)) { ext3_msg(sb, KERN_INFO, "Skipping orphan cleanup due to " "unknown ROCOMPAT features"); return; |
a8f48a956 [PATCH] ext3/4: d... |
1440 |
} |
1da177e4c Linux-2.6.12-rc2 |
1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 |
if (EXT3_SB(sb)->s_mount_state & EXT3_ERROR_FS) { if (es->s_last_orphan) jbd_debug(1, "Errors on filesystem, " "clearing orphan list. "); es->s_last_orphan = 0; jbd_debug(1, "Skipping orphan recovery on fs with errors. "); return; } if (s_flags & MS_RDONLY) { |
4cf46b67e ext3: Unify log m... |
1453 |
ext3_msg(sb, KERN_INFO, "orphan cleanup on readonly fs"); |
1da177e4c Linux-2.6.12-rc2 |
1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 |
sb->s_flags &= ~MS_RDONLY; } #ifdef CONFIG_QUOTA /* Needed for iput() to work correctly and not trash data */ sb->s_flags |= MS_ACTIVE; /* Turn on quotas so that they are updated correctly */ for (i = 0; i < MAXQUOTAS; i++) { if (EXT3_SB(sb)->s_qf_names[i]) { int ret = ext3_quota_on_mount(sb, i); if (ret < 0) |
4cf46b67e ext3: Unify log m... |
1464 1465 1466 |
ext3_msg(sb, KERN_ERR, "error: cannot turn on journaled " "quota: %d", ret); |
1da177e4c Linux-2.6.12-rc2 |
1467 1468 1469 1470 1471 1472 |
} } #endif while (es->s_last_orphan) { struct inode *inode; |
473043dce iget: stop EXT3 f... |
1473 1474 |
inode = ext3_orphan_get(sb, le32_to_cpu(es->s_last_orphan)); if (IS_ERR(inode)) { |
1da177e4c Linux-2.6.12-rc2 |
1475 1476 1477 1478 1479 |
es->s_last_orphan = 0; break; } list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan); |
871a29315 dquot: cleanup dq... |
1480 |
dquot_initialize(inode); |
1da177e4c Linux-2.6.12-rc2 |
1481 1482 |
if (inode->i_nlink) { printk(KERN_DEBUG |
eee194e76 [PATCH] ext3: ino... |
1483 1484 |
"%s: truncating inode %lu to %Ld bytes ", |
e05b6b524 ext3: replace rem... |
1485 |
__func__, inode->i_ino, inode->i_size); |
eee194e76 [PATCH] ext3: ino... |
1486 1487 |
jbd_debug(2, "truncating inode %lu to %Ld bytes ", |
1da177e4c Linux-2.6.12-rc2 |
1488 1489 1490 1491 1492 |
inode->i_ino, inode->i_size); ext3_truncate(inode); nr_truncates++; } else { printk(KERN_DEBUG |
eee194e76 [PATCH] ext3: ino... |
1493 1494 |
"%s: deleting unreferenced inode %lu ", |
e05b6b524 ext3: replace rem... |
1495 |
__func__, inode->i_ino); |
eee194e76 [PATCH] ext3: ino... |
1496 1497 |
jbd_debug(2, "deleting unreferenced inode %lu ", |
1da177e4c Linux-2.6.12-rc2 |
1498 1499 1500 1501 1502 1503 1504 1505 1506 |
inode->i_ino); nr_orphans++; } iput(inode); /* The delete magic happens here! */ } #define PLURAL(x) (x), ((x)==1) ? "" : "s" if (nr_orphans) |
4cf46b67e ext3: Unify log m... |
1507 1508 |
ext3_msg(sb, KERN_INFO, "%d orphan inode%s deleted", PLURAL(nr_orphans)); |
1da177e4c Linux-2.6.12-rc2 |
1509 |
if (nr_truncates) |
4cf46b67e ext3: Unify log m... |
1510 1511 |
ext3_msg(sb, KERN_INFO, "%d truncate%s cleaned up", PLURAL(nr_truncates)); |
1da177e4c Linux-2.6.12-rc2 |
1512 1513 1514 1515 |
#ifdef CONFIG_QUOTA /* Turn quotas off */ for (i = 0; i < MAXQUOTAS; i++) { if (sb_dqopt(sb)->files[i]) |
287a80958 quota: rename def... |
1516 |
dquot_quota_off(sb, i); |
1da177e4c Linux-2.6.12-rc2 |
1517 1518 1519 1520 |
} #endif sb->s_flags = s_flags; /* Restore MS_RDONLY status */ } |
1da177e4c Linux-2.6.12-rc2 |
1521 1522 1523 1524 1525 1526 1527 1528 |
/* * Maximal file size. There is a direct, and {,double-,triple-}indirect * block limit, and also a limit of (2^32 - 1) 512-byte sectors in i_blocks. * We need to be 1 filesystem block less than the 2^32 sector limit. */ static loff_t ext3_max_size(int bits) { loff_t res = EXT3_NDIR_BLOCKS; |
fe7fdc37b ext3: Fix the max... |
1529 1530 1531 1532 1533 |
int meta_blocks; loff_t upper_limit; /* This is calculated to be the largest file size for a * dense, file such that the total number of |
1da177e4c Linux-2.6.12-rc2 |
1534 |
* sectors in the file, including data and all indirect blocks, |
fe7fdc37b ext3: Fix the max... |
1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 |
* does not exceed 2^32 -1 * __u32 i_blocks representing the total number of * 512 bytes blocks of the file */ upper_limit = (1LL << 32) - 1; /* total blocks in file system block size */ upper_limit >>= (bits - 9); /* indirect blocks */ meta_blocks = 1; /* double indirect blocks */ meta_blocks += 1 + (1LL << (bits-2)); /* tripple indirect blocks */ meta_blocks += 1 + (1LL << (bits-2)) + (1LL << (2*(bits-2))); upper_limit -= meta_blocks; upper_limit <<= bits; |
1da177e4c Linux-2.6.12-rc2 |
1554 1555 1556 1557 1558 1559 1560 |
res += 1LL << (bits-2); res += 1LL << (2*(bits-2)); res += 1LL << (3*(bits-2)); res <<= bits; if (res > upper_limit) res = upper_limit; |
fe7fdc37b ext3: Fix the max... |
1561 1562 1563 |
if (res > MAX_LFS_FILESIZE) res = MAX_LFS_FILESIZE; |
1da177e4c Linux-2.6.12-rc2 |
1564 1565 |
return res; } |
43d23f903 [PATCH] ext3_fsbl... |
1566 1567 |
static ext3_fsblk_t descriptor_loc(struct super_block *sb, ext3_fsblk_t logic_sb_block, |
1da177e4c Linux-2.6.12-rc2 |
1568 1569 1570 |
int nr) { struct ext3_sb_info *sbi = EXT3_SB(sb); |
43d23f903 [PATCH] ext3_fsbl... |
1571 |
unsigned long bg, first_meta_bg; |
1da177e4c Linux-2.6.12-rc2 |
1572 |
int has_super = 0; |
1da177e4c Linux-2.6.12-rc2 |
1573 1574 1575 1576 1577 1578 1579 1580 |
first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg); if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_META_BG) || nr < first_meta_bg) return (logic_sb_block + nr + 1); bg = sbi->s_desc_per_block * nr; if (ext3_bg_has_super(sb, bg)) has_super = 1; |
43d23f903 [PATCH] ext3_fsbl... |
1581 |
return (has_super + ext3_group_first_block_no(sb, bg)); |
1da177e4c Linux-2.6.12-rc2 |
1582 1583 1584 1585 1586 1587 1588 1589 |
} static int ext3_fill_super (struct super_block *sb, void *data, int silent) { struct buffer_head * bh; struct ext3_super_block *es = NULL; struct ext3_sb_info *sbi; |
43d23f903 [PATCH] ext3_fsbl... |
1590 |
ext3_fsblk_t block; |
4cf46b67e ext3: Unify log m... |
1591 |
ext3_fsblk_t sb_block = get_sb_block(&data, sb); |
43d23f903 [PATCH] ext3_fsbl... |
1592 |
ext3_fsblk_t logic_sb_block; |
1da177e4c Linux-2.6.12-rc2 |
1593 |
unsigned long offset = 0; |
eee194e76 [PATCH] ext3: ino... |
1594 |
unsigned int journal_inum = 0; |
71b962574 [PATCH] ext3: ext... |
1595 |
unsigned long journal_devnum = 0; |
1da177e4c Linux-2.6.12-rc2 |
1596 1597 1598 1599 1600 1601 1602 |
unsigned long def_mount_opts; struct inode *root; int blocksize; int hblock; int db_count; int i; int needs_recovery; |
473043dce iget: stop EXT3 f... |
1603 |
int ret = -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
1604 |
__le32 features; |
833f4077b lib: percpu_count... |
1605 |
int err; |
1da177e4c Linux-2.6.12-rc2 |
1606 |
|
f8314dc60 [PATCH] fs: Conve... |
1607 |
sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); |
1da177e4c Linux-2.6.12-rc2 |
1608 1609 |
if (!sbi) return -ENOMEM; |
5df096d67 ext3: allocate ->... |
1610 1611 1612 1613 1614 1615 1616 |
sbi->s_blockgroup_lock = kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL); if (!sbi->s_blockgroup_lock) { kfree(sbi); return -ENOMEM; } |
1da177e4c Linux-2.6.12-rc2 |
1617 |
sb->s_fs_info = sbi; |
1da177e4c Linux-2.6.12-rc2 |
1618 1619 1620 |
sbi->s_mount_opt = 0; sbi->s_resuid = EXT3_DEF_RESUID; sbi->s_resgid = EXT3_DEF_RESGID; |
571beed8d ext3: show all mo... |
1621 |
sbi->s_sb_block = sb_block; |
1da177e4c Linux-2.6.12-rc2 |
1622 |
|
1da177e4c Linux-2.6.12-rc2 |
1623 1624 |
blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE); if (!blocksize) { |
4cf46b67e ext3: Unify log m... |
1625 |
ext3_msg(sb, KERN_ERR, "error: unable to set blocksize"); |
1da177e4c Linux-2.6.12-rc2 |
1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 |
goto out_fail; } /* * The ext3 superblock will not be buffer aligned for other than 1kB * block sizes. We need to calculate the offset from buffer start. */ if (blocksize != EXT3_MIN_BLOCK_SIZE) { logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize; offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize; } else { logic_sb_block = sb_block; } if (!(bh = sb_bread(sb, logic_sb_block))) { |
4cf46b67e ext3: Unify log m... |
1641 |
ext3_msg(sb, KERN_ERR, "error: unable to read superblock"); |
1da177e4c Linux-2.6.12-rc2 |
1642 1643 1644 1645 1646 1647 |
goto out_fail; } /* * Note: s_es must be initialized as soon as possible because * some ext3 macro-instructions depend on its value */ |
57e94d864 ext3: Remove unne... |
1648 |
es = (struct ext3_super_block *) (bh->b_data + offset); |
1da177e4c Linux-2.6.12-rc2 |
1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 |
sbi->s_es = es; sb->s_magic = le16_to_cpu(es->s_magic); if (sb->s_magic != EXT3_SUPER_MAGIC) goto cantfind_ext3; /* Set defaults before we parse the mount options */ def_mount_opts = le32_to_cpu(es->s_default_mount_opts); if (def_mount_opts & EXT3_DEFM_DEBUG) set_opt(sbi->s_mount_opt, DEBUG); if (def_mount_opts & EXT3_DEFM_BSDGROUPS) set_opt(sbi->s_mount_opt, GRPID); if (def_mount_opts & EXT3_DEFM_UID16) set_opt(sbi->s_mount_opt, NO_UID32); |
2e7842b88 [PATCH] fix umask... |
1662 |
#ifdef CONFIG_EXT3_FS_XATTR |
1da177e4c Linux-2.6.12-rc2 |
1663 1664 |
if (def_mount_opts & EXT3_DEFM_XATTR_USER) set_opt(sbi->s_mount_opt, XATTR_USER); |
2e7842b88 [PATCH] fix umask... |
1665 1666 |
#endif #ifdef CONFIG_EXT3_FS_POSIX_ACL |
1da177e4c Linux-2.6.12-rc2 |
1667 1668 |
if (def_mount_opts & EXT3_DEFM_ACL) set_opt(sbi->s_mount_opt, POSIX_ACL); |
2e7842b88 [PATCH] fix umask... |
1669 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
1670 |
if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_DATA) |
e3c964359 ext3: mount flags... |
1671 |
set_opt(sbi->s_mount_opt, JOURNAL_DATA); |
1da177e4c Linux-2.6.12-rc2 |
1672 |
else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_ORDERED) |
e3c964359 ext3: mount flags... |
1673 |
set_opt(sbi->s_mount_opt, ORDERED_DATA); |
1da177e4c Linux-2.6.12-rc2 |
1674 |
else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_WBACK) |
e3c964359 ext3: mount flags... |
1675 |
set_opt(sbi->s_mount_opt, WRITEBACK_DATA); |
1da177e4c Linux-2.6.12-rc2 |
1676 1677 1678 |
if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_PANIC) set_opt(sbi->s_mount_opt, ERRORS_PANIC); |
1eca93f9c ext3: change the ... |
1679 |
else if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_CONTINUE) |
2245d7c21 [PATCH] ext3: err... |
1680 |
set_opt(sbi->s_mount_opt, ERRORS_CONT); |
1eca93f9c ext3: change the ... |
1681 1682 |
else set_opt(sbi->s_mount_opt, ERRORS_RO); |
1da177e4c Linux-2.6.12-rc2 |
1683 1684 1685 |
sbi->s_resuid = le16_to_cpu(es->s_def_resuid); sbi->s_resgid = le16_to_cpu(es->s_def_resgid); |
00eacd66c ext3: make ext3 m... |
1686 1687 |
/* enable barriers by default */ set_opt(sbi->s_mount_opt, BARRIER); |
1da177e4c Linux-2.6.12-rc2 |
1688 |
set_opt(sbi->s_mount_opt, RESERVATION); |
71b962574 [PATCH] ext3: ext... |
1689 1690 |
if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum, NULL, 0)) |
1da177e4c Linux-2.6.12-rc2 |
1691 1692 1693 |
goto failed_mount; sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
e3c964359 ext3: mount flags... |
1694 |
(test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); |
1da177e4c Linux-2.6.12-rc2 |
1695 1696 1697 1698 1699 |
if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV && (EXT3_HAS_COMPAT_FEATURE(sb, ~0U) || EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) || EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U))) |
4cf46b67e ext3: Unify log m... |
1700 1701 1702 |
ext3_msg(sb, KERN_WARNING, "warning: feature flags set on rev 0 fs, " "running e2fsck is recommended"); |
1da177e4c Linux-2.6.12-rc2 |
1703 1704 1705 1706 1707 1708 1709 |
/* * Check feature flags regardless of the revision level, since we * previously didn't change the revision level when setting the flags, * so there is a chance incompat flags are set on a rev 0 filesystem. */ features = EXT3_HAS_INCOMPAT_FEATURE(sb, ~EXT3_FEATURE_INCOMPAT_SUPP); if (features) { |
4cf46b67e ext3: Unify log m... |
1710 1711 1712 |
ext3_msg(sb, KERN_ERR, "error: couldn't mount because of unsupported " "optional features (%x)", le32_to_cpu(features)); |
1da177e4c Linux-2.6.12-rc2 |
1713 1714 1715 1716 |
goto failed_mount; } features = EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP); if (!(sb->s_flags & MS_RDONLY) && features) { |
4cf46b67e ext3: Unify log m... |
1717 1718 1719 |
ext3_msg(sb, KERN_ERR, "error: couldn't mount RDWR because of unsupported " "optional features (%x)", le32_to_cpu(features)); |
1da177e4c Linux-2.6.12-rc2 |
1720 1721 1722 1723 1724 1725 |
goto failed_mount; } blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size); if (blocksize < EXT3_MIN_BLOCK_SIZE || blocksize > EXT3_MAX_BLOCK_SIZE) { |
4cf46b67e ext3: Unify log m... |
1726 1727 1728 |
ext3_msg(sb, KERN_ERR, "error: couldn't mount because of unsupported " "filesystem blocksize %d", blocksize); |
1da177e4c Linux-2.6.12-rc2 |
1729 1730 |
goto failed_mount; } |
e1defc4ff block: Do away wi... |
1731 |
hblock = bdev_logical_block_size(sb->s_bdev); |
1da177e4c Linux-2.6.12-rc2 |
1732 1733 1734 1735 1736 1737 |
if (sb->s_blocksize != blocksize) { /* * Make sure the blocksize for the filesystem is larger * than the hardware sectorsize for the machine. */ if (blocksize < hblock) { |
4cf46b67e ext3: Unify log m... |
1738 1739 1740 |
ext3_msg(sb, KERN_ERR, "error: fsblocksize %d too small for " "hardware sectorsize %d", blocksize, hblock); |
1da177e4c Linux-2.6.12-rc2 |
1741 1742 1743 1744 |
goto failed_mount; } brelse (bh); |
0f0a89ebe ext3: support lar... |
1745 |
if (!sb_set_blocksize(sb, blocksize)) { |
4cf46b67e ext3: Unify log m... |
1746 1747 |
ext3_msg(sb, KERN_ERR, "error: bad blocksize %d", blocksize); |
0f0a89ebe ext3: support lar... |
1748 1749 |
goto out_fail; } |
1da177e4c Linux-2.6.12-rc2 |
1750 1751 1752 1753 |
logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize; offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize; bh = sb_bread(sb, logic_sb_block); if (!bh) { |
4cf46b67e ext3: Unify log m... |
1754 1755 |
ext3_msg(sb, KERN_ERR, "error: can't read superblock on 2nd try"); |
1da177e4c Linux-2.6.12-rc2 |
1756 1757 |
goto failed_mount; } |
57e94d864 ext3: Remove unne... |
1758 |
es = (struct ext3_super_block *)(bh->b_data + offset); |
1da177e4c Linux-2.6.12-rc2 |
1759 1760 |
sbi->s_es = es; if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) { |
4cf46b67e ext3: Unify log m... |
1761 1762 |
ext3_msg(sb, KERN_ERR, "error: magic mismatch"); |
1da177e4c Linux-2.6.12-rc2 |
1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 |
goto failed_mount; } } sb->s_maxbytes = ext3_max_size(sb->s_blocksize_bits); if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV) { sbi->s_inode_size = EXT3_GOOD_OLD_INODE_SIZE; sbi->s_first_ino = EXT3_GOOD_OLD_FIRST_INO; } else { sbi->s_inode_size = le16_to_cpu(es->s_inode_size); sbi->s_first_ino = le32_to_cpu(es->s_first_ino); if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) || |
3fc74269c is_power_of_2: ex... |
1776 |
(!is_power_of_2(sbi->s_inode_size)) || |
1da177e4c Linux-2.6.12-rc2 |
1777 |
(sbi->s_inode_size > blocksize)) { |
4cf46b67e ext3: Unify log m... |
1778 1779 |
ext3_msg(sb, KERN_ERR, "error: unsupported inode size: %d", |
1da177e4c Linux-2.6.12-rc2 |
1780 1781 1782 1783 1784 1785 1786 |
sbi->s_inode_size); goto failed_mount; } } sbi->s_frag_size = EXT3_MIN_FRAG_SIZE << le32_to_cpu(es->s_log_frag_size); if (blocksize != sbi->s_frag_size) { |
4cf46b67e ext3: Unify log m... |
1787 1788 |
ext3_msg(sb, KERN_ERR, "error: fragsize %lu != blocksize %u (unsupported)", |
1da177e4c Linux-2.6.12-rc2 |
1789 1790 1791 1792 1793 1794 1795 |
sbi->s_frag_size, blocksize); goto failed_mount; } sbi->s_frags_per_block = 1; sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group); sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group); sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group); |
b47b6f38e ext3, ext4: avoid... |
1796 |
if (EXT3_INODE_SIZE(sb) == 0 || EXT3_INODES_PER_GROUP(sb) == 0) |
1da177e4c Linux-2.6.12-rc2 |
1797 1798 1799 1800 1801 1802 1803 1804 1805 |
goto cantfind_ext3; sbi->s_inodes_per_block = blocksize / EXT3_INODE_SIZE(sb); if (sbi->s_inodes_per_block == 0) goto cantfind_ext3; sbi->s_itb_per_group = sbi->s_inodes_per_group / sbi->s_inodes_per_block; sbi->s_desc_per_block = blocksize / sizeof(struct ext3_group_desc); sbi->s_sbh = bh; sbi->s_mount_state = le16_to_cpu(es->s_state); |
f0d1b0b30 [PATCH] LOG2: Imp... |
1806 1807 |
sbi->s_addr_per_block_bits = ilog2(EXT3_ADDR_PER_BLOCK(sb)); sbi->s_desc_per_block_bits = ilog2(EXT3_DESC_PER_BLOCK(sb)); |
1da177e4c Linux-2.6.12-rc2 |
1808 1809 1810 |
for (i=0; i < 4; i++) sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]); sbi->s_def_hash_version = es->s_def_hash_version; |
5e1f8c9e2 ext3: Add support... |
1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 |
i = le32_to_cpu(es->s_flags); if (i & EXT2_FLAGS_UNSIGNED_HASH) sbi->s_hash_unsigned = 3; else if ((i & EXT2_FLAGS_SIGNED_HASH) == 0) { #ifdef __CHAR_UNSIGNED__ es->s_flags |= cpu_to_le32(EXT2_FLAGS_UNSIGNED_HASH); sbi->s_hash_unsigned = 3; #else es->s_flags |= cpu_to_le32(EXT2_FLAGS_SIGNED_HASH); #endif |
5e1f8c9e2 ext3: Add support... |
1821 |
} |
1da177e4c Linux-2.6.12-rc2 |
1822 1823 |
if (sbi->s_blocks_per_group > blocksize * 8) { |
4cf46b67e ext3: Unify log m... |
1824 1825 |
ext3_msg(sb, KERN_ERR, "#blocks per group too big: %lu", |
1da177e4c Linux-2.6.12-rc2 |
1826 1827 1828 1829 |
sbi->s_blocks_per_group); goto failed_mount; } if (sbi->s_frags_per_group > blocksize * 8) { |
4cf46b67e ext3: Unify log m... |
1830 1831 |
ext3_msg(sb, KERN_ERR, "error: #fragments per group too big: %lu", |
1da177e4c Linux-2.6.12-rc2 |
1832 1833 1834 1835 |
sbi->s_frags_per_group); goto failed_mount; } if (sbi->s_inodes_per_group > blocksize * 8) { |
4cf46b67e ext3: Unify log m... |
1836 1837 |
ext3_msg(sb, KERN_ERR, "error: #inodes per group too big: %lu", |
1da177e4c Linux-2.6.12-rc2 |
1838 1839 1840 |
sbi->s_inodes_per_group); goto failed_mount; } |
ad692bf3e ext3: Return erro... |
1841 1842 1843 |
err = generic_check_addressable(sb->s_blocksize_bits, le32_to_cpu(es->s_blocks_count)); if (err) { |
4cf46b67e ext3: Unify log m... |
1844 1845 |
ext3_msg(sb, KERN_ERR, "error: filesystem is too large to mount safely"); |
fcd5df358 [PATCH] Avoid dis... |
1846 |
if (sizeof(sector_t) < 8) |
4cf46b67e ext3: Unify log m... |
1847 1848 |
ext3_msg(sb, KERN_ERR, "error: CONFIG_LBDAF not enabled"); |
ad692bf3e ext3: Return erro... |
1849 |
ret = err; |
fcd5df358 [PATCH] Avoid dis... |
1850 1851 |
goto failed_mount; } |
1da177e4c Linux-2.6.12-rc2 |
1852 1853 |
if (EXT3_BLOCKS_PER_GROUP(sb) == 0) goto cantfind_ext3; |
855565e81 [PATCH] fix ext3 ... |
1854 1855 1856 |
sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) - le32_to_cpu(es->s_first_data_block) - 1) / EXT3_BLOCKS_PER_GROUP(sb)) + 1; |
81a4e320e ext3: Use DIV_ROU... |
1857 |
db_count = DIV_ROUND_UP(sbi->s_groups_count, EXT3_DESC_PER_BLOCK(sb)); |
1da177e4c Linux-2.6.12-rc2 |
1858 1859 1860 |
sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *), GFP_KERNEL); if (sbi->s_group_desc == NULL) { |
4cf46b67e ext3: Unify log m... |
1861 1862 |
ext3_msg(sb, KERN_ERR, "error: not enough memory"); |
4569cd1b0 ext3: Return prop... |
1863 |
ret = -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
1864 1865 |
goto failed_mount; } |
5df096d67 ext3: allocate ->... |
1866 |
bgl_lock_init(sbi->s_blockgroup_lock); |
1da177e4c Linux-2.6.12-rc2 |
1867 1868 1869 1870 1871 |
for (i = 0; i < db_count; i++) { block = descriptor_loc(sb, logic_sb_block, i); sbi->s_group_desc[i] = sb_bread(sb, block); if (!sbi->s_group_desc[i]) { |
4cf46b67e ext3: Unify log m... |
1872 1873 |
ext3_msg(sb, KERN_ERR, "error: can't read group descriptor %d", i); |
1da177e4c Linux-2.6.12-rc2 |
1874 1875 1876 1877 1878 |
db_count = i; goto failed_mount2; } } if (!ext3_check_descriptors (sb)) { |
4cf46b67e ext3: Unify log m... |
1879 1880 |
ext3_msg(sb, KERN_ERR, "error: group descriptors corrupted"); |
1da177e4c Linux-2.6.12-rc2 |
1881 1882 1883 1884 1885 |
goto failed_mount2; } sbi->s_gdb_count = db_count; get_random_bytes(&sbi->s_next_generation, sizeof(u32)); spin_lock_init(&sbi->s_next_gen_lock); |
0216bfcff [PATCH] percpu co... |
1886 |
|
1da177e4c Linux-2.6.12-rc2 |
1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 |
/* per fileystem reservation list head & lock */ spin_lock_init(&sbi->s_rsv_window_lock); sbi->s_rsv_window_root = RB_ROOT; /* Add a single, static dummy reservation to the start of the * reservation window list --- it gives us a placeholder for * append-at-start-of-list which makes the allocation logic * _much_ simpler. */ sbi->s_rsv_window_head.rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED; sbi->s_rsv_window_head.rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED; sbi->s_rsv_window_head.rsv_alloc_hit = 0; sbi->s_rsv_window_head.rsv_goal_size = 0; ext3_rsv_window_add(sb, &sbi->s_rsv_window_head); /* * set up enough so that it can read an inode */ sb->s_op = &ext3_sops; sb->s_export_op = &ext3_export_ops; sb->s_xattr = ext3_xattr_handlers; #ifdef CONFIG_QUOTA sb->s_qcop = &ext3_qctl_operations; sb->dq_op = &ext3_quota_operations; #endif |
03cb5f03d ext3: Copy fs UUI... |
1910 |
memcpy(sb->s_uuid, es->s_uuid, sizeof(es->s_uuid)); |
1da177e4c Linux-2.6.12-rc2 |
1911 |
INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */ |
b8a052d01 ext3: Replace loc... |
1912 |
mutex_init(&sbi->s_orphan_lock); |
96d2a495c ext3: Replace loc... |
1913 |
mutex_init(&sbi->s_resize_lock); |
1da177e4c Linux-2.6.12-rc2 |
1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 |
sb->s_root = NULL; needs_recovery = (es->s_last_orphan != 0 || EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)); /* * The first inode we look at is the journal inode. Don't try * root first: it may be modified in the journal! */ if (!test_opt(sb, NOLOAD) && EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { |
71b962574 [PATCH] ext3: ext... |
1927 |
if (ext3_load_journal(sb, es, journal_devnum)) |
41d1a636b ext3: init statis... |
1928 |
goto failed_mount2; |
1da177e4c Linux-2.6.12-rc2 |
1929 1930 |
} else if (journal_inum) { if (ext3_create_journal(sb, es, journal_inum)) |
41d1a636b ext3: init statis... |
1931 |
goto failed_mount2; |
1da177e4c Linux-2.6.12-rc2 |
1932 1933 |
} else { if (!silent) |
4cf46b67e ext3: Unify log m... |
1934 1935 1936 |
ext3_msg(sb, KERN_ERR, "error: no journal found. " "mounting ext3 over ext2?"); |
41d1a636b ext3: init statis... |
1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 |
goto failed_mount2; } err = percpu_counter_init(&sbi->s_freeblocks_counter, ext3_count_free_blocks(sb)); if (!err) { err = percpu_counter_init(&sbi->s_freeinodes_counter, ext3_count_free_inodes(sb)); } if (!err) { err = percpu_counter_init(&sbi->s_dirs_counter, ext3_count_dirs(sb)); } if (err) { ext3_msg(sb, KERN_ERR, "error: insufficient memory"); |
4569cd1b0 ext3: Return prop... |
1951 |
ret = err; |
0216bfcff [PATCH] percpu co... |
1952 |
goto failed_mount3; |
1da177e4c Linux-2.6.12-rc2 |
1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 |
} /* We have now updated the journal if required, so we can * validate the data journaling mode. */ switch (test_opt(sb, DATA_FLAGS)) { case 0: /* No mode set, assume a default based on the journal capabilities: ORDERED_DATA if the journal can cope, else JOURNAL_DATA */ if (journal_check_available_features (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) |
bbae8bcc4 ext3: make defaul... |
1964 |
set_opt(sbi->s_mount_opt, DEFAULT_DATA_MODE); |
1da177e4c Linux-2.6.12-rc2 |
1965 1966 1967 1968 1969 1970 1971 1972 |
else set_opt(sbi->s_mount_opt, JOURNAL_DATA); break; case EXT3_MOUNT_ORDERED_DATA: case EXT3_MOUNT_WRITEBACK_DATA: if (!journal_check_available_features (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) { |
4cf46b67e ext3: Unify log m... |
1973 1974 1975 |
ext3_msg(sb, KERN_ERR, "error: journal does not support " "requested data journaling mode"); |
41d1a636b ext3: init statis... |
1976 |
goto failed_mount3; |
1da177e4c Linux-2.6.12-rc2 |
1977 1978 1979 1980 |
} default: break; } |
1da177e4c Linux-2.6.12-rc2 |
1981 1982 1983 1984 |
/* * The journal_load will have done any necessary log recovery, * so we can safely mount the rest of the filesystem now. */ |
473043dce iget: stop EXT3 f... |
1985 1986 |
root = ext3_iget(sb, EXT3_ROOT_INO); if (IS_ERR(root)) { |
4cf46b67e ext3: Unify log m... |
1987 |
ext3_msg(sb, KERN_ERR, "error: get root inode failed"); |
473043dce iget: stop EXT3 f... |
1988 |
ret = PTR_ERR(root); |
41d1a636b ext3: init statis... |
1989 |
goto failed_mount3; |
1da177e4c Linux-2.6.12-rc2 |
1990 1991 |
} if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
473043dce iget: stop EXT3 f... |
1992 |
iput(root); |
4cf46b67e ext3: Unify log m... |
1993 |
ext3_msg(sb, KERN_ERR, "error: corrupt root inode, run e2fsck"); |
41d1a636b ext3: init statis... |
1994 |
goto failed_mount3; |
1da177e4c Linux-2.6.12-rc2 |
1995 |
} |
473043dce iget: stop EXT3 f... |
1996 1997 |
sb->s_root = d_alloc_root(root); if (!sb->s_root) { |
4cf46b67e ext3: Unify log m... |
1998 |
ext3_msg(sb, KERN_ERR, "error: get root dentry failed"); |
473043dce iget: stop EXT3 f... |
1999 2000 |
iput(root); ret = -ENOMEM; |
41d1a636b ext3: init statis... |
2001 |
goto failed_mount3; |
473043dce iget: stop EXT3 f... |
2002 |
} |
1da177e4c Linux-2.6.12-rc2 |
2003 2004 |
ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY); |
ed505ee45 ext3: Remove outd... |
2005 |
|
1da177e4c Linux-2.6.12-rc2 |
2006 2007 2008 |
EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS; ext3_orphan_cleanup(sb, es); EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS; |
63894ab9f ext3: call ext3_m... |
2009 2010 |
if (needs_recovery) { ext3_mark_recovery_complete(sb, es); |
4cf46b67e ext3: Unify log m... |
2011 |
ext3_msg(sb, KERN_INFO, "recovery complete"); |
63894ab9f ext3: call ext3_m... |
2012 |
} |
4cf46b67e ext3: Unify log m... |
2013 |
ext3_msg(sb, KERN_INFO, "mounted filesystem with %s data mode", |
1da177e4c Linux-2.6.12-rc2 |
2014 2015 2016 |
test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ? "journal": test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered": "writeback"); |
1da177e4c Linux-2.6.12-rc2 |
2017 2018 2019 2020 |
return 0; cantfind_ext3: if (!silent) |
4cf46b67e ext3: Unify log m... |
2021 2022 |
ext3_msg(sb, KERN_INFO, "error: can't find ext3 filesystem on dev %s.", |
1da177e4c Linux-2.6.12-rc2 |
2023 2024 |
sb->s_id); goto failed_mount; |
0216bfcff [PATCH] percpu co... |
2025 2026 2027 2028 |
failed_mount3: percpu_counter_destroy(&sbi->s_freeblocks_counter); percpu_counter_destroy(&sbi->s_freeinodes_counter); percpu_counter_destroy(&sbi->s_dirs_counter); |
41d1a636b ext3: init statis... |
2029 |
journal_destroy(sbi->s_journal); |
1da177e4c Linux-2.6.12-rc2 |
2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 |
failed_mount2: for (i = 0; i < db_count; i++) brelse(sbi->s_group_desc[i]); kfree(sbi->s_group_desc); failed_mount: #ifdef CONFIG_QUOTA for (i = 0; i < MAXQUOTAS; i++) kfree(sbi->s_qf_names[i]); #endif ext3_blkdev_remove(sbi); brelse(bh); out_fail: sb->s_fs_info = NULL; |
de5ce0373 ext3: Fix memory ... |
2043 |
kfree(sbi->s_blockgroup_lock); |
1da177e4c Linux-2.6.12-rc2 |
2044 |
kfree(sbi); |
473043dce iget: stop EXT3 f... |
2045 |
return ret; |
1da177e4c Linux-2.6.12-rc2 |
2046 2047 2048 2049 2050 |
} /* * Setup any per-fs journal parameters now. We'll do this both on * initial mount, once the journal has been initialised but before we've |
ae6ddcc5f [PATCH] ext3 and ... |
2051 |
* done any recovery; and again on any subsequent remount. |
1da177e4c Linux-2.6.12-rc2 |
2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 |
*/ static void ext3_init_journal_params(struct super_block *sb, journal_t *journal) { struct ext3_sb_info *sbi = EXT3_SB(sb); if (sbi->s_commit_interval) journal->j_commit_interval = sbi->s_commit_interval; /* We could also set up an ext3-specific default for the commit * interval here, but for now we'll just fall back to the jbd * default. */ spin_lock(&journal->j_state_lock); if (test_opt(sb, BARRIER)) journal->j_flags |= JFS_BARRIER; else journal->j_flags &= ~JFS_BARRIER; |
0e4fb5e28 ext3: add an opti... |
2068 2069 2070 2071 |
if (test_opt(sb, DATA_ERR_ABORT)) journal->j_flags |= JFS_ABORT_ON_SYNCDATA_ERR; else journal->j_flags &= ~JFS_ABORT_ON_SYNCDATA_ERR; |
1da177e4c Linux-2.6.12-rc2 |
2072 2073 |
spin_unlock(&journal->j_state_lock); } |
eee194e76 [PATCH] ext3: ino... |
2074 2075 |
static journal_t *ext3_get_journal(struct super_block *sb, unsigned int journal_inum) |
1da177e4c Linux-2.6.12-rc2 |
2076 2077 2078 2079 2080 2081 2082 |
{ struct inode *journal_inode; journal_t *journal; /* First, test for the existence of a valid inode on disk. Bad * things happen if we iget() an unused inode, as the subsequent * iput() will try to delete it. */ |
473043dce iget: stop EXT3 f... |
2083 2084 |
journal_inode = ext3_iget(sb, journal_inum); if (IS_ERR(journal_inode)) { |
4cf46b67e ext3: Unify log m... |
2085 |
ext3_msg(sb, KERN_ERR, "error: no journal found"); |
1da177e4c Linux-2.6.12-rc2 |
2086 2087 2088 2089 2090 |
return NULL; } if (!journal_inode->i_nlink) { make_bad_inode(journal_inode); iput(journal_inode); |
4cf46b67e ext3: Unify log m... |
2091 |
ext3_msg(sb, KERN_ERR, "error: journal inode is deleted"); |
1da177e4c Linux-2.6.12-rc2 |
2092 2093 2094 2095 2096 2097 |
return NULL; } jbd_debug(2, "Journal inode found at %p: %Ld bytes ", journal_inode, journal_inode->i_size); |
473043dce iget: stop EXT3 f... |
2098 |
if (!S_ISREG(journal_inode->i_mode)) { |
4cf46b67e ext3: Unify log m... |
2099 |
ext3_msg(sb, KERN_ERR, "error: invalid journal inode"); |
1da177e4c Linux-2.6.12-rc2 |
2100 2101 2102 2103 2104 2105 |
iput(journal_inode); return NULL; } journal = journal_init_inode(journal_inode); if (!journal) { |
4cf46b67e ext3: Unify log m... |
2106 |
ext3_msg(sb, KERN_ERR, "error: could not load journal inode"); |
1da177e4c Linux-2.6.12-rc2 |
2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 |
iput(journal_inode); return NULL; } journal->j_private = sb; ext3_init_journal_params(sb, journal); return journal; } static journal_t *ext3_get_dev_journal(struct super_block *sb, dev_t j_dev) { struct buffer_head * bh; journal_t *journal; |
43d23f903 [PATCH] ext3_fsbl... |
2120 |
ext3_fsblk_t start; |
1c2bf374a [PATCH] ext3_fsbl... |
2121 |
ext3_fsblk_t len; |
1da177e4c Linux-2.6.12-rc2 |
2122 |
int hblock, blocksize; |
43d23f903 [PATCH] ext3_fsbl... |
2123 |
ext3_fsblk_t sb_block; |
1da177e4c Linux-2.6.12-rc2 |
2124 2125 2126 |
unsigned long offset; struct ext3_super_block * es; struct block_device *bdev; |
4cf46b67e ext3: Unify log m... |
2127 |
bdev = ext3_blkdev_get(j_dev, sb); |
1da177e4c Linux-2.6.12-rc2 |
2128 2129 |
if (bdev == NULL) return NULL; |
1da177e4c Linux-2.6.12-rc2 |
2130 |
blocksize = sb->s_blocksize; |
e1defc4ff block: Do away wi... |
2131 |
hblock = bdev_logical_block_size(bdev); |
1da177e4c Linux-2.6.12-rc2 |
2132 |
if (blocksize < hblock) { |
4cf46b67e ext3: Unify log m... |
2133 2134 |
ext3_msg(sb, KERN_ERR, "error: blocksize too small for journal device"); |
1da177e4c Linux-2.6.12-rc2 |
2135 2136 2137 2138 2139 2140 2141 |
goto out_bdev; } sb_block = EXT3_MIN_BLOCK_SIZE / blocksize; offset = EXT3_MIN_BLOCK_SIZE % blocksize; set_blocksize(bdev, blocksize); if (!(bh = __bread(bdev, sb_block, blocksize))) { |
4cf46b67e ext3: Unify log m... |
2142 2143 |
ext3_msg(sb, KERN_ERR, "error: couldn't read superblock of " "external journal"); |
1da177e4c Linux-2.6.12-rc2 |
2144 2145 |
goto out_bdev; } |
57e94d864 ext3: Remove unne... |
2146 |
es = (struct ext3_super_block *) (bh->b_data + offset); |
1da177e4c Linux-2.6.12-rc2 |
2147 2148 2149 |
if ((le16_to_cpu(es->s_magic) != EXT3_SUPER_MAGIC) || !(le32_to_cpu(es->s_feature_incompat) & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) { |
4cf46b67e ext3: Unify log m... |
2150 2151 |
ext3_msg(sb, KERN_ERR, "error: external journal has " "bad superblock"); |
1da177e4c Linux-2.6.12-rc2 |
2152 2153 2154 2155 2156 |
brelse(bh); goto out_bdev; } if (memcmp(EXT3_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) { |
4cf46b67e ext3: Unify log m... |
2157 |
ext3_msg(sb, KERN_ERR, "error: journal UUID does not match"); |
1da177e4c Linux-2.6.12-rc2 |
2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 |
brelse(bh); goto out_bdev; } len = le32_to_cpu(es->s_blocks_count); start = sb_block + 1; brelse(bh); /* we're done with the superblock */ journal = journal_init_dev(bdev, sb->s_bdev, start, len, blocksize); if (!journal) { |
4cf46b67e ext3: Unify log m... |
2169 2170 |
ext3_msg(sb, KERN_ERR, "error: failed to create device journal"); |
1da177e4c Linux-2.6.12-rc2 |
2171 2172 2173 |
goto out_bdev; } journal->j_private = sb; |
d03e1292c ext3: replace ll_... |
2174 2175 2176 2177 2178 |
if (!bh_uptodate_or_lock(journal->j_sb_buffer)) { if (bh_submit_read(journal->j_sb_buffer)) { ext3_msg(sb, KERN_ERR, "I/O error on journal device"); goto out_journal; } |
1da177e4c Linux-2.6.12-rc2 |
2179 2180 |
} if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) { |
4cf46b67e ext3: Unify log m... |
2181 2182 2183 |
ext3_msg(sb, KERN_ERR, "error: external journal has more than one " "user (unsupported) - %d", |
1da177e4c Linux-2.6.12-rc2 |
2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 |
be32_to_cpu(journal->j_superblock->s_nr_users)); goto out_journal; } EXT3_SB(sb)->journal_bdev = bdev; ext3_init_journal_params(sb, journal); return journal; out_journal: journal_destroy(journal); out_bdev: ext3_blkdev_put(bdev); return NULL; } |
71b962574 [PATCH] ext3: ext... |
2196 2197 2198 |
static int ext3_load_journal(struct super_block *sb, struct ext3_super_block *es, unsigned long journal_devnum) |
1da177e4c Linux-2.6.12-rc2 |
2199 2200 |
{ journal_t *journal; |
eee194e76 [PATCH] ext3: ino... |
2201 |
unsigned int journal_inum = le32_to_cpu(es->s_journal_inum); |
71b962574 [PATCH] ext3: ext... |
2202 |
dev_t journal_dev; |
1da177e4c Linux-2.6.12-rc2 |
2203 2204 |
int err = 0; int really_read_only; |
71b962574 [PATCH] ext3: ext... |
2205 2206 |
if (journal_devnum && journal_devnum != le32_to_cpu(es->s_journal_dev)) { |
4cf46b67e ext3: Unify log m... |
2207 2208 |
ext3_msg(sb, KERN_INFO, "external journal device major/minor " "numbers have changed"); |
71b962574 [PATCH] ext3: ext... |
2209 2210 2211 |
journal_dev = new_decode_dev(journal_devnum); } else journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev)); |
1da177e4c Linux-2.6.12-rc2 |
2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 |
really_read_only = bdev_read_only(sb->s_bdev); /* * Are we loading a blank journal or performing recovery after a * crash? For recovery, we need to check in advance whether we * can get read-write access to the device. */ if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) { if (sb->s_flags & MS_RDONLY) { |
4cf46b67e ext3: Unify log m... |
2222 2223 |
ext3_msg(sb, KERN_INFO, "recovery required on readonly filesystem"); |
1da177e4c Linux-2.6.12-rc2 |
2224 |
if (really_read_only) { |
4cf46b67e ext3: Unify log m... |
2225 2226 |
ext3_msg(sb, KERN_ERR, "error: write access " "unavailable, cannot proceed"); |
1da177e4c Linux-2.6.12-rc2 |
2227 2228 |
return -EROFS; } |
4cf46b67e ext3: Unify log m... |
2229 2230 |
ext3_msg(sb, KERN_INFO, "write access will be enabled during recovery"); |
1da177e4c Linux-2.6.12-rc2 |
2231 2232 2233 2234 |
} } if (journal_inum && journal_dev) { |
4cf46b67e ext3: Unify log m... |
2235 2236 |
ext3_msg(sb, KERN_ERR, "error: filesystem has both journal " "and inode journals"); |
1da177e4c Linux-2.6.12-rc2 |
2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 |
return -EINVAL; } if (journal_inum) { if (!(journal = ext3_get_journal(sb, journal_inum))) return -EINVAL; } else { if (!(journal = ext3_get_dev_journal(sb, journal_dev))) return -EINVAL; } |
0636c73ee ext3: make barrie... |
2247 2248 2249 |
if (!(journal->j_flags & JFS_BARRIER)) printk(KERN_INFO "EXT3-fs: barriers not enabled "); |
1da177e4c Linux-2.6.12-rc2 |
2250 2251 2252 |
if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) { err = journal_update_format(journal); if (err) { |
4cf46b67e ext3: Unify log m... |
2253 |
ext3_msg(sb, KERN_ERR, "error updating journal"); |
1da177e4c Linux-2.6.12-rc2 |
2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 |
journal_destroy(journal); return err; } } if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) err = journal_wipe(journal, !really_read_only); if (!err) err = journal_load(journal); if (err) { |
4cf46b67e ext3: Unify log m... |
2265 |
ext3_msg(sb, KERN_ERR, "error loading journal"); |
1da177e4c Linux-2.6.12-rc2 |
2266 2267 2268 2269 2270 2271 |
journal_destroy(journal); return err; } EXT3_SB(sb)->s_journal = journal; ext3_clear_journal_err(sb, es); |
71b962574 [PATCH] ext3: ext... |
2272 |
|
31d710a7b ext3: don't updat... |
2273 |
if (!really_read_only && journal_devnum && |
71b962574 [PATCH] ext3: ext... |
2274 2275 |
journal_devnum != le32_to_cpu(es->s_journal_dev)) { es->s_journal_dev = cpu_to_le32(journal_devnum); |
71b962574 [PATCH] ext3: ext... |
2276 2277 2278 2279 |
/* Make sure we flush the recovery flag to disk. */ ext3_commit_super(sb, es, 1); } |
1da177e4c Linux-2.6.12-rc2 |
2280 2281 |
return 0; } |
4cf46b67e ext3: Unify log m... |
2282 2283 |
static int ext3_create_journal(struct super_block *sb, struct ext3_super_block *es, |
eee194e76 [PATCH] ext3: ino... |
2284 |
unsigned int journal_inum) |
1da177e4c Linux-2.6.12-rc2 |
2285 2286 |
{ journal_t *journal; |
952d9de11 ext3: fix error h... |
2287 |
int err; |
1da177e4c Linux-2.6.12-rc2 |
2288 2289 |
if (sb->s_flags & MS_RDONLY) { |
4cf46b67e ext3: Unify log m... |
2290 2291 2292 |
ext3_msg(sb, KERN_ERR, "error: readonly filesystem when trying to " "create journal"); |
1da177e4c Linux-2.6.12-rc2 |
2293 2294 |
return -EROFS; } |
952d9de11 ext3: fix error h... |
2295 2296 |
journal = ext3_get_journal(sb, journal_inum); if (!journal) |
1da177e4c Linux-2.6.12-rc2 |
2297 |
return -EINVAL; |
4cf46b67e ext3: Unify log m... |
2298 |
ext3_msg(sb, KERN_INFO, "creating new journal on inode %u", |
1da177e4c Linux-2.6.12-rc2 |
2299 |
journal_inum); |
952d9de11 ext3: fix error h... |
2300 2301 |
err = journal_create(journal); if (err) { |
4cf46b67e ext3: Unify log m... |
2302 |
ext3_msg(sb, KERN_ERR, "error creating journal"); |
1da177e4c Linux-2.6.12-rc2 |
2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 |
journal_destroy(journal); return -EIO; } EXT3_SB(sb)->s_journal = journal; ext3_update_dynamic_rev(sb); EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL); es->s_journal_inum = cpu_to_le32(journal_inum); |
1da177e4c Linux-2.6.12-rc2 |
2314 2315 2316 2317 2318 2319 |
/* Make sure we flush the recovery flag to disk. */ ext3_commit_super(sb, es, 1); return 0; } |
c4be0c1dc filesystem freeze... |
2320 2321 |
static int ext3_commit_super(struct super_block *sb, struct ext3_super_block *es, |
1da177e4c Linux-2.6.12-rc2 |
2322 2323 2324 |
int sync) { struct buffer_head *sbh = EXT3_SB(sb)->s_sbh; |
c4be0c1dc filesystem freeze... |
2325 |
int error = 0; |
1da177e4c Linux-2.6.12-rc2 |
2326 2327 |
if (!sbh) |
c4be0c1dc filesystem freeze... |
2328 |
return error; |
dff6825e9 ext3/jbd: Avoid W... |
2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 |
if (buffer_write_io_error(sbh)) { /* * Oh, dear. A previous attempt to write the * superblock failed. This could happen because the * USB device was yanked out. Or it could happen to * be a transient write error and maybe the block will * be remapped. Nothing we can do but to retry the * write and hope for the best. */ ext3_msg(sb, KERN_ERR, "previous I/O error to " "superblock detected"); clear_buffer_write_io_error(sbh); set_buffer_uptodate(sbh); } |
96ec2e0a7 ext3: Don't updat... |
2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 |
/* * If the file system is mounted read-only, don't update the * superblock write time. This avoids updating the superblock * write time when we are mounting the root file system * read/only but we need to replay the journal; at that point, * for people who are east of GMT and who make their clock * tick in localtime for Windows bug-for-bug compatibility, * the clock is set in the future, and this will cause e2fsck * to complain and force a full file system check. */ if (!(sb->s_flags & MS_RDONLY)) es->s_wtime = cpu_to_le32(get_seconds()); |
1da177e4c Linux-2.6.12-rc2 |
2356 2357 2358 2359 |
es->s_free_blocks_count = cpu_to_le32(ext3_count_free_blocks(sb)); es->s_free_inodes_count = cpu_to_le32(ext3_count_free_inodes(sb)); BUFFER_TRACE(sbh, "marking dirty"); mark_buffer_dirty(sbh); |
dff6825e9 ext3/jbd: Avoid W... |
2360 |
if (sync) { |
c4be0c1dc filesystem freeze... |
2361 |
error = sync_dirty_buffer(sbh); |
dff6825e9 ext3/jbd: Avoid W... |
2362 2363 2364 2365 2366 2367 2368 |
if (buffer_write_io_error(sbh)) { ext3_msg(sb, KERN_ERR, "I/O error while writing " "superblock"); clear_buffer_write_io_error(sbh); set_buffer_uptodate(sbh); } } |
c4be0c1dc filesystem freeze... |
2369 |
return error; |
1da177e4c Linux-2.6.12-rc2 |
2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 |
} /* * Have we just finished recovery? If so, and if we are mounting (or * remounting) the filesystem readonly, then we will end up with a * consistent fs on disk. Record that fact. */ static void ext3_mark_recovery_complete(struct super_block * sb, struct ext3_super_block * es) { journal_t *journal = EXT3_SB(sb)->s_journal; journal_lock_updates(journal); |
2d7c820e5 ext3: add checks ... |
2384 2385 |
if (journal_flush(journal) < 0) goto out; |
1da177e4c Linux-2.6.12-rc2 |
2386 2387 2388 |
if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) && sb->s_flags & MS_RDONLY) { EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); |
1da177e4c Linux-2.6.12-rc2 |
2389 2390 |
ext3_commit_super(sb, es, 1); } |
2d7c820e5 ext3: add checks ... |
2391 2392 |
out: |
1da177e4c Linux-2.6.12-rc2 |
2393 2394 2395 2396 2397 2398 2399 2400 |
journal_unlock_updates(journal); } /* * If we are mounting (or read-write remounting) a filesystem whose journal * has recorded an error from a previous lifetime, move that error to the * main filesystem now. */ |
4cf46b67e ext3: Unify log m... |
2401 2402 |
static void ext3_clear_journal_err(struct super_block *sb, struct ext3_super_block *es) |
1da177e4c Linux-2.6.12-rc2 |
2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 |
{ journal_t *journal; int j_errno; const char *errstr; journal = EXT3_SB(sb)->s_journal; /* * Now check for any error status which may have been recorded in the * journal by a prior ext3_error() or ext3_abort() */ j_errno = journal_errno(journal); if (j_errno) { char nbuf[16]; errstr = ext3_decode_error(sb, j_errno, nbuf); |
e05b6b524 ext3: replace rem... |
2420 |
ext3_warning(sb, __func__, "Filesystem error recorded " |
1da177e4c Linux-2.6.12-rc2 |
2421 |
"from previous mount: %s", errstr); |
e05b6b524 ext3: replace rem... |
2422 |
ext3_warning(sb, __func__, "Marking fs in need of " |
1da177e4c Linux-2.6.12-rc2 |
2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 |
"filesystem check."); EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS; es->s_state |= cpu_to_le16(EXT3_ERROR_FS); ext3_commit_super (sb, es, 1); journal_clear_err(journal); } } /* * Force the running and committing transactions to commit, * and wait on the commit. */ int ext3_force_commit(struct super_block *sb) { journal_t *journal; int ret; if (sb->s_flags & MS_RDONLY) return 0; journal = EXT3_SB(sb)->s_journal; |
1da177e4c Linux-2.6.12-rc2 |
2446 2447 2448 |
ret = ext3_journal_force_commit(journal); return ret; } |
1da177e4c Linux-2.6.12-rc2 |
2449 2450 |
static int ext3_sync_fs(struct super_block *sb, int wait) { |
02ac597c9 ext3: revert "ext... |
2451 |
tid_t target; |
c87591b71 ext3: wait on all... |
2452 |
|
785c4bcc0 ext3: Add fixed t... |
2453 |
trace_ext3_sync_fs(sb, wait); |
02ac597c9 ext3: revert "ext... |
2454 2455 2456 2457 |
if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) { if (wait) log_wait_commit(EXT3_SB(sb)->s_journal, target); } |
1da177e4c Linux-2.6.12-rc2 |
2458 2459 2460 2461 2462 2463 2464 |
return 0; } /* * LVM calls this function before a (read-only) snapshot is created. This * gives us a chance to flush the journal completely and mark the fs clean. */ |
c4be0c1dc filesystem freeze... |
2465 |
static int ext3_freeze(struct super_block *sb) |
1da177e4c Linux-2.6.12-rc2 |
2466 |
{ |
c4be0c1dc filesystem freeze... |
2467 2468 |
int error = 0; journal_t *journal; |
1da177e4c Linux-2.6.12-rc2 |
2469 2470 |
if (!(sb->s_flags & MS_RDONLY)) { |
c4be0c1dc filesystem freeze... |
2471 |
journal = EXT3_SB(sb)->s_journal; |
1da177e4c Linux-2.6.12-rc2 |
2472 2473 2474 |
/* Now we set up the journal barrier. */ journal_lock_updates(journal); |
2d7c820e5 ext3: add checks ... |
2475 2476 2477 2478 2479 |
/* * We don't want to clear needs_recovery flag when we failed * to flush the journal. */ |
c4be0c1dc filesystem freeze... |
2480 2481 2482 |
error = journal_flush(journal); if (error < 0) goto out; |
1da177e4c Linux-2.6.12-rc2 |
2483 2484 2485 |
/* Journal blocked and flushed, clear needs_recovery flag. */ EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); |
c4be0c1dc filesystem freeze... |
2486 2487 2488 |
error = ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1); if (error) goto out; |
1da177e4c Linux-2.6.12-rc2 |
2489 |
} |
c4be0c1dc filesystem freeze... |
2490 2491 2492 2493 2494 |
return 0; out: journal_unlock_updates(journal); return error; |
1da177e4c Linux-2.6.12-rc2 |
2495 2496 2497 2498 2499 2500 |
} /* * Called by LVM after the snapshot is done. We need to reset the RECOVER * flag here, even though the filesystem is not technically dirty yet. */ |
c4be0c1dc filesystem freeze... |
2501 |
static int ext3_unfreeze(struct super_block *sb) |
1da177e4c Linux-2.6.12-rc2 |
2502 2503 2504 2505 2506 2507 2508 2509 2510 |
{ if (!(sb->s_flags & MS_RDONLY)) { lock_super(sb); /* Reser the needs_recovery flag before the fs is unlocked. */ EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1); unlock_super(sb); journal_unlock_updates(EXT3_SB(sb)->s_journal); } |
c4be0c1dc filesystem freeze... |
2511 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
2512 2513 2514 2515 2516 2517 |
} static int ext3_remount (struct super_block * sb, int * flags, char * data) { struct ext3_super_block * es; struct ext3_sb_info *sbi = EXT3_SB(sb); |
43d23f903 [PATCH] ext3_fsbl... |
2518 |
ext3_fsblk_t n_blocks_count = 0; |
08c6a96fd [PATCH] ext3: fix... |
2519 2520 |
unsigned long old_sb_flags; struct ext3_mount_options old_opts; |
c79d967de quota: move remou... |
2521 |
int enable_quota = 0; |
08c6a96fd [PATCH] ext3: fix... |
2522 2523 2524 2525 2526 2527 |
int err; #ifdef CONFIG_QUOTA int i; #endif /* Store the original options */ |
bbd6851a3 Push lock_super()... |
2528 |
lock_super(sb); |
08c6a96fd [PATCH] ext3: fix... |
2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 |
old_sb_flags = sb->s_flags; old_opts.s_mount_opt = sbi->s_mount_opt; old_opts.s_resuid = sbi->s_resuid; old_opts.s_resgid = sbi->s_resgid; old_opts.s_commit_interval = sbi->s_commit_interval; #ifdef CONFIG_QUOTA old_opts.s_jquota_fmt = sbi->s_jquota_fmt; for (i = 0; i < MAXQUOTAS; i++) old_opts.s_qf_names[i] = sbi->s_qf_names[i]; #endif |
1da177e4c Linux-2.6.12-rc2 |
2539 2540 2541 2542 |
/* * Allow the "check" option to be passed as a remount option. */ |
71b962574 [PATCH] ext3: ext... |
2543 |
if (!parse_options(data, sb, NULL, NULL, &n_blocks_count, 1)) { |
08c6a96fd [PATCH] ext3: fix... |
2544 2545 2546 |
err = -EINVAL; goto restore_opts; } |
1da177e4c Linux-2.6.12-rc2 |
2547 |
|
e3c964359 ext3: mount flags... |
2548 |
if (test_opt(sb, ABORT)) |
e05b6b524 ext3: replace rem... |
2549 |
ext3_abort(sb, __func__, "Abort forced by user"); |
1da177e4c Linux-2.6.12-rc2 |
2550 2551 |
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
e3c964359 ext3: mount flags... |
2552 |
(test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); |
1da177e4c Linux-2.6.12-rc2 |
2553 2554 2555 2556 2557 2558 2559 |
es = sbi->s_es; ext3_init_journal_params(sb, sbi->s_journal); if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY) || n_blocks_count > le32_to_cpu(es->s_blocks_count)) { |
e3c964359 ext3: mount flags... |
2560 |
if (test_opt(sb, ABORT)) { |
08c6a96fd [PATCH] ext3: fix... |
2561 2562 2563 |
err = -EROFS; goto restore_opts; } |
1da177e4c Linux-2.6.12-rc2 |
2564 2565 |
if (*flags & MS_RDONLY) { |
0f0dd62fd quota: kill the v... |
2566 2567 |
err = dquot_suspend(sb, -1); if (err < 0) |
c79d967de quota: move remou... |
2568 |
goto restore_opts; |
c79d967de quota: move remou... |
2569 |
|
1da177e4c Linux-2.6.12-rc2 |
2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 |
/* * First of all, the unconditional stuff we have to do * to disable replay of the journal when we next remount */ sb->s_flags |= MS_RDONLY; /* * OK, test if we are remounting a valid rw partition * readonly, and if so set the rdonly flag and then * mark the partition as valid again. */ if (!(es->s_state & cpu_to_le16(EXT3_VALID_FS)) && (sbi->s_mount_state & EXT3_VALID_FS)) es->s_state = cpu_to_le16(sbi->s_mount_state); ext3_mark_recovery_complete(sb, es); } else { __le32 ret; if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP))) { |
4cf46b67e ext3: Unify log m... |
2590 2591 2592 2593 |
ext3_msg(sb, KERN_WARNING, "warning: couldn't remount RDWR " "because of unsupported optional " "features (%x)", le32_to_cpu(ret)); |
08c6a96fd [PATCH] ext3: fix... |
2594 2595 |
err = -EROFS; goto restore_opts; |
1da177e4c Linux-2.6.12-rc2 |
2596 |
} |
ea9a05a13 [PATCH] ext3: ref... |
2597 2598 2599 2600 |
/* * If we have an unprocessed orphan list hanging * around from a previously readonly bdev mount, |
1cde201da ext3: fix message... |
2601 |
* require a full umount & mount for now. |
ea9a05a13 [PATCH] ext3: ref... |
2602 2603 |
*/ if (es->s_last_orphan) { |
4cf46b67e ext3: Unify log m... |
2604 |
ext3_msg(sb, KERN_WARNING, "warning: couldn't " |
ea9a05a13 [PATCH] ext3: ref... |
2605 2606 |
"remount RDWR because of unprocessed " "orphan inode list. Please " |
1cde201da ext3: fix message... |
2607 |
"umount & mount instead."); |
ea9a05a13 [PATCH] ext3: ref... |
2608 2609 2610 |
err = -EINVAL; goto restore_opts; } |
1da177e4c Linux-2.6.12-rc2 |
2611 2612 2613 2614 2615 2616 2617 2618 |
/* * Mounting a RDONLY partition read-write, so reread * and store the current valid flag. (It may have * been changed by e2fsck since we originally mounted * the partition.) */ ext3_clear_journal_err(sb, es); sbi->s_mount_state = le16_to_cpu(es->s_state); |
a4e4de36d [PATCH] ext3: Fix... |
2619 |
if ((err = ext3_group_extend(sb, es, n_blocks_count))) |
08c6a96fd [PATCH] ext3: fix... |
2620 |
goto restore_opts; |
1da177e4c Linux-2.6.12-rc2 |
2621 2622 |
if (!ext3_setup_super (sb, es, 0)) sb->s_flags &= ~MS_RDONLY; |
c79d967de quota: move remou... |
2623 |
enable_quota = 1; |
1da177e4c Linux-2.6.12-rc2 |
2624 2625 |
} } |
08c6a96fd [PATCH] ext3: fix... |
2626 2627 2628 2629 2630 2631 2632 |
#ifdef CONFIG_QUOTA /* Release old quota file names */ for (i = 0; i < MAXQUOTAS; i++) if (old_opts.s_qf_names[i] && old_opts.s_qf_names[i] != sbi->s_qf_names[i]) kfree(old_opts.s_qf_names[i]); #endif |
bbd6851a3 Push lock_super()... |
2633 |
unlock_super(sb); |
c79d967de quota: move remou... |
2634 2635 |
if (enable_quota) |
0f0dd62fd quota: kill the v... |
2636 |
dquot_resume(sb, -1); |
1da177e4c Linux-2.6.12-rc2 |
2637 |
return 0; |
08c6a96fd [PATCH] ext3: fix... |
2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 |
restore_opts: sb->s_flags = old_sb_flags; sbi->s_mount_opt = old_opts.s_mount_opt; sbi->s_resuid = old_opts.s_resuid; sbi->s_resgid = old_opts.s_resgid; sbi->s_commit_interval = old_opts.s_commit_interval; #ifdef CONFIG_QUOTA sbi->s_jquota_fmt = old_opts.s_jquota_fmt; for (i = 0; i < MAXQUOTAS; i++) { if (sbi->s_qf_names[i] && old_opts.s_qf_names[i] != sbi->s_qf_names[i]) kfree(sbi->s_qf_names[i]); sbi->s_qf_names[i] = old_opts.s_qf_names[i]; } #endif |
bbd6851a3 Push lock_super()... |
2653 |
unlock_super(sb); |
08c6a96fd [PATCH] ext3: fix... |
2654 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
2655 |
} |
726c33422 [PATCH] VFS: Perm... |
2656 |
static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf) |
1da177e4c Linux-2.6.12-rc2 |
2657 |
{ |
726c33422 [PATCH] VFS: Perm... |
2658 |
struct super_block *sb = dentry->d_sb; |
09fe316a7 [PATCH] fast ext3... |
2659 2660 |
struct ext3_sb_info *sbi = EXT3_SB(sb); struct ext3_super_block *es = sbi->s_es; |
50ee0a32b [PATCH] ext3: fsi... |
2661 |
u64 fsid; |
1da177e4c Linux-2.6.12-rc2 |
2662 |
|
a71ce8c6c ext3: statfs spee... |
2663 2664 2665 2666 2667 |
if (test_opt(sb, MINIX_DF)) { sbi->s_overhead_last = 0; } else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) { unsigned long ngroups = sbi->s_groups_count, i; ext3_fsblk_t overhead = 0; |
1da177e4c Linux-2.6.12-rc2 |
2668 2669 2670 |
smp_rmb(); /* |
a71ce8c6c ext3: statfs spee... |
2671 2672 2673 |
* Compute the overhead (FS structures). This is constant * for a given filesystem unless the number of block groups * changes so we cache the previous value until it does. |
1da177e4c Linux-2.6.12-rc2 |
2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 |
*/ /* * All of the blocks before first_data_block are * overhead */ overhead = le32_to_cpu(es->s_first_data_block); /* * Add the overhead attributed to the superblock and * block group descriptors. If the sparse superblocks * feature is turned on, then not all groups have this. */ for (i = 0; i < ngroups; i++) { overhead += ext3_bg_has_super(sb, i) + ext3_bg_num_gdb(sb, i); cond_resched(); } /* * Every block group has an inode bitmap, a block * bitmap, and an inode table. */ |
a71ce8c6c ext3: statfs spee... |
2697 2698 2699 2700 |
overhead += ngroups * (2 + sbi->s_itb_per_group); sbi->s_overhead_last = overhead; smp_wmb(); sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count); |
1da177e4c Linux-2.6.12-rc2 |
2701 2702 2703 2704 |
} buf->f_type = EXT3_SUPER_MAGIC; buf->f_bsize = sb->s_blocksize; |
a71ce8c6c ext3: statfs spee... |
2705 |
buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last; |
52d9f3b40 lib: percpu_count... |
2706 |
buf->f_bfree = percpu_counter_sum_positive(&sbi->s_freeblocks_counter); |
1da177e4c Linux-2.6.12-rc2 |
2707 2708 2709 2710 |
buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count); if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count)) buf->f_bavail = 0; buf->f_files = le32_to_cpu(es->s_inodes_count); |
52d9f3b40 lib: percpu_count... |
2711 |
buf->f_ffree = percpu_counter_sum_positive(&sbi->s_freeinodes_counter); |
1da177e4c Linux-2.6.12-rc2 |
2712 |
buf->f_namelen = EXT3_NAME_LEN; |
50ee0a32b [PATCH] ext3: fsi... |
2713 2714 2715 2716 |
fsid = le64_to_cpup((void *)es->s_uuid) ^ le64_to_cpup((void *)es->s_uuid + sizeof(u64)); buf->f_fsid.val[0] = fsid & 0xFFFFFFFFUL; buf->f_fsid.val[1] = (fsid >> 32) & 0xFFFFFFFFUL; |
1da177e4c Linux-2.6.12-rc2 |
2717 2718 2719 2720 2721 2722 2723 2724 |
return 0; } /* Helper function for writing quotas on sync - we need to start transaction before quota file * is locked for write. Otherwise the are possible deadlocks: * Process 1 Process 2 * ext3_create() quota_sync() * journal_start() write_dquot() |
871a29315 dquot: cleanup dq... |
2725 |
* dquot_initialize() down(dqio_mutex) |
d3be915fc [PATCH] sem2mutex... |
2726 |
* down(dqio_mutex) journal_start() |
1da177e4c Linux-2.6.12-rc2 |
2727 2728 2729 2730 2731 2732 2733 2734 2735 |
* */ #ifdef CONFIG_QUOTA static inline struct inode *dquot_to_inode(struct dquot *dquot) { return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type]; } |
1da177e4c Linux-2.6.12-rc2 |
2736 2737 2738 2739 2740 2741 2742 2743 |
static int ext3_write_dquot(struct dquot *dquot) { int ret, err; handle_t *handle; struct inode *inode; inode = dquot_to_inode(dquot); handle = ext3_journal_start(inode, |
1f54587be [PATCH] quota: ex... |
2744 |
EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); |
1da177e4c Linux-2.6.12-rc2 |
2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 |
if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_commit(dquot); err = ext3_journal_stop(handle); if (!ret) ret = err; return ret; } static int ext3_acquire_dquot(struct dquot *dquot) { int ret, err; handle_t *handle; handle = ext3_journal_start(dquot_to_inode(dquot), |
1f54587be [PATCH] quota: ex... |
2760 |
EXT3_QUOTA_INIT_BLOCKS(dquot->dq_sb)); |
1da177e4c Linux-2.6.12-rc2 |
2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 |
if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_acquire(dquot); err = ext3_journal_stop(handle); if (!ret) ret = err; return ret; } static int ext3_release_dquot(struct dquot *dquot) { int ret, err; handle_t *handle; handle = ext3_journal_start(dquot_to_inode(dquot), |
1f54587be [PATCH] quota: ex... |
2776 |
EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb)); |
9c3013e9b quota: fix infini... |
2777 2778 2779 |
if (IS_ERR(handle)) { /* Release dquot anyway to avoid endless cycle in dqput() */ dquot_release(dquot); |
1da177e4c Linux-2.6.12-rc2 |
2780 |
return PTR_ERR(handle); |
9c3013e9b quota: fix infini... |
2781 |
} |
1da177e4c Linux-2.6.12-rc2 |
2782 2783 2784 2785 2786 2787 2788 2789 2790 |
ret = dquot_release(dquot); err = ext3_journal_stop(handle); if (!ret) ret = err; return ret; } static int ext3_mark_dquot_dirty(struct dquot *dquot) { |
99aeaf639 ext3: fix typos i... |
2791 |
/* Are we journaling quotas? */ |
1da177e4c Linux-2.6.12-rc2 |
2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 |
if (EXT3_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] || EXT3_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) { dquot_mark_dquot_dirty(dquot); return ext3_write_dquot(dquot); } else { return dquot_mark_dquot_dirty(dquot); } } static int ext3_write_info(struct super_block *sb, int type) { int ret, err; handle_t *handle; /* Data block + inode block */ handle = ext3_journal_start(sb->s_root->d_inode, 2); if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_commit_info(sb, type); err = ext3_journal_stop(handle); if (!ret) ret = err; return ret; } /* * Turn on quotas during mount time - we need to find * the quota file and such... */ static int ext3_quota_on_mount(struct super_block *sb, int type) { |
287a80958 quota: rename def... |
2823 2824 |
return dquot_quota_on_mount(sb, EXT3_SB(sb)->s_qf_names[type], EXT3_SB(sb)->s_jquota_fmt, type); |
1da177e4c Linux-2.6.12-rc2 |
2825 2826 2827 2828 2829 2830 |
} /* * Standard function to be called on quota_on */ static int ext3_quota_on(struct super_block *sb, int type, int format_id, |
f00c9e44a quota: Fix deadlo... |
2831 |
struct path *path) |
1da177e4c Linux-2.6.12-rc2 |
2832 2833 |
{ int err; |
1da177e4c Linux-2.6.12-rc2 |
2834 |
|
1f54587be [PATCH] quota: ex... |
2835 2836 |
if (!test_opt(sb, QUOTA)) return -EINVAL; |
9cfe7b901 ext3: fix synchro... |
2837 |
|
1da177e4c Linux-2.6.12-rc2 |
2838 |
/* Quotafile not on the same filesystem? */ |
d8c9584ea vfs: prefer ->den... |
2839 |
if (path->dentry->d_sb != sb) |
1da177e4c Linux-2.6.12-rc2 |
2840 |
return -EXDEV; |
9cfe7b901 ext3: fix synchro... |
2841 2842 2843 |
/* Journaling quota? */ if (EXT3_SB(sb)->s_qf_names[type]) { /* Quotafile not of fs root? */ |
f00c9e44a quota: Fix deadlo... |
2844 |
if (path->dentry->d_parent != sb->s_root) |
4cf46b67e ext3: Unify log m... |
2845 2846 2847 |
ext3_msg(sb, KERN_WARNING, "warning: Quota file not on filesystem root. " "Journaled quota will not work."); |
9cfe7b901 ext3: fix synchro... |
2848 2849 2850 2851 2852 2853 |
} /* * When we journal data on quota file, we have to flush journal to see * all updates to the file when we bypass pagecache... */ |
f00c9e44a quota: Fix deadlo... |
2854 |
if (ext3_should_journal_data(path->dentry->d_inode)) { |
9cfe7b901 ext3: fix synchro... |
2855 2856 2857 2858 2859 |
/* * We don't need to lock updates but journal_flush() could * otherwise be livelocked... */ journal_lock_updates(EXT3_SB(sb)->s_journal); |
2d7c820e5 ext3: add checks ... |
2860 |
err = journal_flush(EXT3_SB(sb)->s_journal); |
9cfe7b901 ext3: fix synchro... |
2861 |
journal_unlock_updates(EXT3_SB(sb)->s_journal); |
f00c9e44a quota: Fix deadlo... |
2862 |
if (err) |
2d7c820e5 ext3: add checks ... |
2863 |
return err; |
9cfe7b901 ext3: fix synchro... |
2864 |
} |
f00c9e44a quota: Fix deadlo... |
2865 |
return dquot_quota_on(sb, type, format_id, path); |
1da177e4c Linux-2.6.12-rc2 |
2866 2867 2868 2869 |
} /* Read data from quotafile - avoid pagecache and such because we cannot afford * acquiring the locks... As quota files are never truncated and quota code |
25985edce Fix common misspe... |
2870 |
* itself serializes the operations (and no one else should touch the files) |
1da177e4c Linux-2.6.12-rc2 |
2871 2872 2873 2874 2875 2876 2877 2878 2879 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 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 |
* we don't have to be afraid of races */ static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data, size_t len, loff_t off) { struct inode *inode = sb_dqopt(sb)->files[type]; sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb); int err = 0; int offset = off & (sb->s_blocksize - 1); int tocopy; size_t toread; struct buffer_head *bh; loff_t i_size = i_size_read(inode); if (off > i_size) return 0; if (off+len > i_size) len = i_size-off; toread = len; while (toread > 0) { tocopy = sb->s_blocksize - offset < toread ? sb->s_blocksize - offset : toread; bh = ext3_bread(NULL, inode, blk, 0, &err); if (err) return err; if (!bh) /* A hole? */ memset(data, 0, tocopy); else memcpy(data, bh->b_data+offset, tocopy); brelse(bh); offset = 0; toread -= tocopy; data += tocopy; blk++; } return len; } /* Write to quotafile (we know the transaction is already started and has * enough credits) */ static ssize_t ext3_quota_write(struct super_block *sb, int type, const char *data, size_t len, loff_t off) { struct inode *inode = sb_dqopt(sb)->files[type]; sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb); int err = 0; int offset = off & (sb->s_blocksize - 1); |
1da177e4c Linux-2.6.12-rc2 |
2917 |
int journal_quota = EXT3_SB(sb)->s_qf_names[type] != NULL; |
1da177e4c Linux-2.6.12-rc2 |
2918 2919 |
struct buffer_head *bh; handle_t *handle = journal_current_handle(); |
9c3013e9b quota: fix infini... |
2920 |
if (!handle) { |
4cf46b67e ext3: Unify log m... |
2921 2922 2923 |
ext3_msg(sb, KERN_WARNING, "warning: quota write (off=%llu, len=%llu)" " cancelled because transaction is not started.", |
9c3013e9b quota: fix infini... |
2924 2925 2926 |
(unsigned long long)off, (unsigned long long)len); return -EIO; } |
e5472147e ext3: quota_write... |
2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 |
/* * Since we account only one data block in transaction credits, * then it is impossible to cross a block boundary. */ if (sb->s_blocksize - offset < len) { ext3_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)" " cancelled because not block aligned", (unsigned long long)off, (unsigned long long)len); return -EIO; } |
5c81a4197 [PATCH] lockdep: ... |
2938 |
mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); |
e5472147e ext3: quota_write... |
2939 2940 2941 2942 2943 2944 2945 |
bh = ext3_bread(handle, inode, blk, 1, &err); if (!bh) goto out; if (journal_quota) { err = ext3_journal_get_write_access(handle, bh); if (err) { brelse(bh); |
1da177e4c Linux-2.6.12-rc2 |
2946 |
goto out; |
1da177e4c Linux-2.6.12-rc2 |
2947 |
} |
1da177e4c Linux-2.6.12-rc2 |
2948 |
} |
e5472147e ext3: quota_write... |
2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 |
lock_buffer(bh); memcpy(bh->b_data+offset, data, len); flush_dcache_page(bh->b_page); unlock_buffer(bh); if (journal_quota) err = ext3_journal_dirty_metadata(handle, bh); else { /* Always do at least ordered writes for quotas */ err = ext3_journal_dirty_data(handle, bh); mark_buffer_dirty(bh); } brelse(bh); |
1da177e4c Linux-2.6.12-rc2 |
2961 |
out: |
e5472147e ext3: quota_write... |
2962 |
if (err) { |
f5c8f7dae ext3: add missing... |
2963 |
mutex_unlock(&inode->i_mutex); |
1da177e4c Linux-2.6.12-rc2 |
2964 |
return err; |
f5c8f7dae ext3: add missing... |
2965 |
} |
e5472147e ext3: quota_write... |
2966 2967 |
if (inode->i_size < off + len) { i_size_write(inode, off + len); |
1da177e4c Linux-2.6.12-rc2 |
2968 2969 2970 2971 2972 |
EXT3_I(inode)->i_disksize = inode->i_size; } inode->i_version++; inode->i_mtime = inode->i_ctime = CURRENT_TIME; ext3_mark_inode_dirty(handle, inode); |
1b1dcc1b5 [PATCH] mutex sub... |
2973 |
mutex_unlock(&inode->i_mutex); |
e5472147e ext3: quota_write... |
2974 |
return len; |
1da177e4c Linux-2.6.12-rc2 |
2975 2976 2977 |
} #endif |
152a08366 new helper: mount... |
2978 2979 |
static struct dentry *ext3_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) |
1da177e4c Linux-2.6.12-rc2 |
2980 |
{ |
152a08366 new helper: mount... |
2981 |
return mount_bdev(fs_type, flags, dev_name, data, ext3_fill_super); |
1da177e4c Linux-2.6.12-rc2 |
2982 2983 2984 2985 2986 |
} static struct file_system_type ext3_fs_type = { .owner = THIS_MODULE, .name = "ext3", |
152a08366 new helper: mount... |
2987 |
.mount = ext3_mount, |
1da177e4c Linux-2.6.12-rc2 |
2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 |
.kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; static int __init init_ext3_fs(void) { int err = init_ext3_xattr(); if (err) return err; err = init_inodecache(); if (err) goto out1; err = register_filesystem(&ext3_fs_type); if (err) goto out; return 0; out: destroy_inodecache(); out1: |
e9ad5620b [PATCH] ext3: Mor... |
3007 |
exit_ext3_xattr(); |
1da177e4c Linux-2.6.12-rc2 |
3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 |
return err; } static void __exit exit_ext3_fs(void) { unregister_filesystem(&ext3_fs_type); destroy_inodecache(); exit_ext3_xattr(); } MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others"); MODULE_DESCRIPTION("Second Extended Filesystem with journaling extensions"); MODULE_LICENSE("GPL"); module_init(init_ext3_fs) module_exit(exit_ext3_fs) |