static int ext3_remount (struct super_block * sb, int * flags, char * data);
static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf);
static int ext3_unfreeze(struct super_block *sb);
-static void ext3_write_super (struct super_block * sb);
static int ext3_freeze(struct super_block *sb);
/*
struct ext3_super_block *es = sbi->s_es;
int i, err;
+ lock_kernel();
+
ext3_xattr_put_super(sb);
err = journal_destroy(sbi->s_journal);
sbi->s_journal = NULL;
sb->s_fs_info = NULL;
kfree(sbi->s_blockgroup_lock);
kfree(sbi);
- return;
+
+ unlock_kernel();
}
static struct kmem_cache *ext3_inode_cachep;
ei = kmem_cache_alloc(ext3_inode_cachep, GFP_NOFS);
if (!ei)
return NULL;
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- ei->i_acl = EXT3_ACL_NOT_CACHED;
- ei->i_default_acl = EXT3_ACL_NOT_CACHED;
-#endif
ei->i_block_alloc_info = NULL;
ei->vfs_inode.i_version = 1;
+ atomic_set(&ei->i_datasync_tid, 0);
+ atomic_set(&ei->i_sync_tid, 0);
return &ei->vfs_inode;
}
static void ext3_clear_inode(struct inode *inode)
{
struct ext3_block_alloc_info *rsv = EXT3_I(inode)->i_block_alloc_info;
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- if (EXT3_I(inode)->i_acl &&
- EXT3_I(inode)->i_acl != EXT3_ACL_NOT_CACHED) {
- posix_acl_release(EXT3_I(inode)->i_acl);
- EXT3_I(inode)->i_acl = EXT3_ACL_NOT_CACHED;
- }
- if (EXT3_I(inode)->i_default_acl &&
- EXT3_I(inode)->i_default_acl != EXT3_ACL_NOT_CACHED) {
- posix_acl_release(EXT3_I(inode)->i_default_acl);
- EXT3_I(inode)->i_default_acl = EXT3_ACL_NOT_CACHED;
- }
-#endif
ext3_discard_reservation(inode);
EXT3_I(inode)->i_block_alloc_info = NULL;
if (unlikely(rsv))
#endif
}
+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";
+}
+
/*
* Show an option if
* - it's set to a non-default value OR
if (test_opt(sb, NOBH))
seq_puts(seq, ",nobh");
- if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
- seq_puts(seq, ",data=journal");
- else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
- seq_puts(seq, ",data=ordered");
- else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
- seq_puts(seq, ",data=writeback");
-
+ seq_printf(seq, ",data=%s", data_mode_string(sbi->s_mount_opt &
+ EXT3_MOUNT_DATA_FLAGS));
if (test_opt(sb, DATA_ERR_ABORT))
seq_puts(seq, ",data_err=abort");
static ssize_t ext3_quota_write(struct super_block *sb, int type,
const char *data, size_t len, loff_t off);
-static struct dquot_operations ext3_quota_operations = {
+static const struct dquot_operations ext3_quota_operations = {
.initialize = dquot_initialize,
.drop = dquot_drop,
.alloc_space = dquot_alloc_space,
.destroy_dquot = dquot_destroy,
};
-static struct quotactl_ops ext3_qctl_operations = {
+static const struct quotactl_ops ext3_qctl_operations = {
.quota_on = ext3_quota_on,
.quota_off = vfs_quota_off,
.quota_sync = vfs_quota_sync,
.dirty_inode = ext3_dirty_inode,
.delete_inode = ext3_delete_inode,
.put_super = ext3_put_super,
- .write_super = ext3_write_super,
.sync_fs = ext3_sync_fs,
.freeze_fs = ext3_freeze,
.unfreeze_fs = ext3_unfreeze,
datacheck:
if (is_remount) {
if ((sbi->s_mount_opt & EXT3_MOUNT_DATA_FLAGS)
- != data_opt) {
- printk(KERN_ERR
- "EXT3-fs: cannot change data "
- "mode on remount\n");
- return 0;
- }
+ == data_opt)
+ break;
+ printk(KERN_ERR
+ "EXT3-fs (device %s): Cannot change "
+ "data mode on remount. The filesystem "
+ "is mounted in data=%s mode and you "
+ "try to remount it in data=%s mode.\n",
+ sb->s_id,
+ data_mode_string(sbi->s_mount_opt &
+ EXT3_MOUNT_DATA_FLAGS),
+ data_mode_string(data_opt));
+ return 0;
} else {
sbi->s_mount_opt &= ~EXT3_MOUNT_DATA_FLAGS;
sbi->s_mount_opt |= data_opt;
goto failed_mount;
}
- hblock = bdev_hardsect_size(sb->s_bdev);
+ hblock = bdev_logical_block_size(sb->s_bdev);
if (sb->s_blocksize != blocksize) {
/*
* Make sure the blocksize for the filesystem is larger
#else
es->s_flags |= cpu_to_le32(EXT2_FLAGS_SIGNED_HASH);
#endif
- sb->s_dirt = 1;
}
if (sbi->s_blocks_per_group > blocksize * 8) {
printk(KERN_ERR "EXT3-fs: filesystem on %s:"
" too large to mount safely\n", sb->s_id);
if (sizeof(sector_t) < 8)
- printk(KERN_WARNING "EXT3-fs: CONFIG_LBD not "
+ printk(KERN_WARNING "EXT3-fs: CONFIG_LBDAF not "
"enabled\n");
goto failed_mount;
}
brelse(bh);
out_fail:
sb->s_fs_info = NULL;
+ kfree(sbi->s_blockgroup_lock);
kfree(sbi);
lock_kernel();
return ret;
}
blocksize = sb->s_blocksize;
- hblock = bdev_hardsect_size(bdev);
+ hblock = bdev_logical_block_size(bdev);
if (blocksize < hblock) {
printk(KERN_ERR
"EXT3-fs: blocksize too small for journal device.\n");
if (journal_devnum &&
journal_devnum != le32_to_cpu(es->s_journal_dev)) {
es->s_journal_dev = cpu_to_le32(journal_devnum);
- sb->s_dirt = 1;
/* Make sure we flush the recovery flag to disk. */
ext3_commit_super(sb, es, 1);
EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL);
es->s_journal_inum = cpu_to_le32(journal_inum);
- sb->s_dirt = 1;
/* Make sure we flush the recovery flag to disk. */
ext3_commit_super(sb, es, 1);
if (!sbh)
return error;
- es->s_wtime = cpu_to_le32(get_seconds());
+ /*
+ * 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());
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");
if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) &&
sb->s_flags & MS_RDONLY) {
EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
- sb->s_dirt = 0;
ext3_commit_super(sb, es, 1);
}
unlock_super(sb);
return 0;
journal = EXT3_SB(sb)->s_journal;
- sb->s_dirt = 0;
ret = ext3_journal_force_commit(journal);
return ret;
}
-/*
- * Ext3 always journals updates to the superblock itself, so we don't
- * have to propagate any other updates to the superblock on disk at this
- * point. (We can probably nuke this function altogether, and remove
- * any mention to sb->s_dirt in all of fs/ext3; eventual cleanup...)
- */
-static void ext3_write_super (struct super_block * sb)
-{
- if (mutex_trylock(&sb->s_lock) != 0)
- BUG();
- sb->s_dirt = 0;
-}
-
static int ext3_sync_fs(struct super_block *sb, int wait)
{
tid_t target;
- sb->s_dirt = 0;
if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) {
if (wait)
log_wait_commit(EXT3_SB(sb)->s_journal, target);
{
int error = 0;
journal_t *journal;
- sb->s_dirt = 0;
if (!(sb->s_flags & MS_RDONLY)) {
journal = EXT3_SB(sb)->s_journal;
int i;
#endif
+ lock_kernel();
+
/* Store the original options */
+ lock_super(sb);
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_qf_names[i] != sbi->s_qf_names[i])
kfree(old_opts.s_qf_names[i]);
#endif
+ unlock_super(sb);
+ unlock_kernel();
return 0;
restore_opts:
sb->s_flags = old_sb_flags;
sbi->s_qf_names[i] = old_opts.s_qf_names[i];
}
#endif
+ unlock_super(sb);
+ unlock_kernel();
return err;
}