diff options
| author | Jan Kara <jack@suse.cz> | 2008-07-25 01:46:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 10:53:33 -0700 |
| commit | 5d4f7fddf8882b214e4aabb3bdb37f90a72b2537 (patch) | |
| tree | b8cf1f13c1032367c0160722764adf1cbca9e92a | |
| parent | 895c23f8c39c0c8d7b536bb2566d4aa968d78be2 (diff) | |
reiserfs: fix synchronization of quota files in journal=data mode
In journal=data mode, it is not enough to do write_inode_now() as done in
vfs_quota_on() to write all data to their final location (which is needed for
quota_read to work correctly). Calling journal_end_sync() before calling
vfs_quota_on() does it's job because transactions are committed to the journal
and data marked as dirty in memory so write_inode_now() writes them to their
final locations.
Cc: <reiserfs-devel@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/reiserfs/super.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 1d40f2bd197..0cbf4cd1114 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -2026,6 +2026,7 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, int err; struct nameidata nd; struct inode *inode; + struct reiserfs_transaction_handle th; if (!(REISERFS_SB(sb)->s_mount_opt & (1 << REISERFS_QUOTA))) return -EINVAL; @@ -2053,17 +2054,28 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, } mark_inode_dirty(inode); } - /* Not journalling quota? No more tests needed... */ - if (!REISERFS_SB(sb)->s_qf_names[USRQUOTA] && - !REISERFS_SB(sb)->s_qf_names[GRPQUOTA]) { - path_put(&nd.path); - return vfs_quota_on(sb, type, format_id, path, 0); - } - /* Quotafile not of fs root? */ - if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode) - reiserfs_warning(sb, + /* Journaling quota? */ + if (REISERFS_SB(sb)->s_qf_names[type]) { + /* Quotafile not of fs root? */ + if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode) + reiserfs_warning(sb, "reiserfs: Quota file not on filesystem root. " "Journalled quota will not work."); + } + + /* + * When we journal data on quota file, we have to flush journal to see + * all updates to the file when we bypass pagecache... + */ + if (reiserfs_file_data_log(inode)) { + /* Just start temporary transaction and finish it */ + err = journal_begin(&th, sb, 1); + if (err) + return err; + err = journal_end_sync(&th, sb, 1); + if (err) + return err; + } path_put(&nd.path); return vfs_quota_on(sb, type, format_id, path, 0); } |