The patch titled
reiserfs: fix synchronization of quota files in journal=data mode
has been added to the -mm tree. Its filename is
reiserfs-fix-synchronization-of-quota-files-in-journal=data-mode.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: reiserfs: fix synchronization of quota files in journal=data mode
From: Jan Kara <jack@xxxxxxx>
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@xxxxxxxxxxxxxxx>
Signed-off-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/reiserfs/super.c | 30 +++++++++++++++++++++---------
1 file changed, 21 insertions(+), 9 deletions(-)
diff -puN fs/reiserfs/super.c~reiserfs-fix-synchronization-of-quota-files-in-journal=data-mode fs/reiserfs/super.c
--- a/fs/reiserfs/super.c~reiserfs-fix-synchronization-of-quota-files-in-journal=data-mode
+++ a/fs/reiserfs/super.c
@@ -2026,6 +2026,7 @@ static int reiserfs_quota_on(struct supe
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 supe
}
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);
}
_
Patches currently in -mm which might be from jack@xxxxxxx are
origin.patch
isofs-fix-access-to-unallocated-memory-when-reading-corrupted-filesystem.patch
quota-le_add_cpu-conversion.patch
ext4-fix-mount-messages-when-quota-disabled.patch
ext3-fix-synchronization-of-quota-files-in-journal=data-mode.patch
ext4-fix-synchronization-of-quota-files-in-journal=data-mode.patch
reiserfs-fix-synchronization-of-quota-files-in-journal=data-mode.patch
ext3-fix-typos-in-messages-and-comments-journalled-journaled.patch
ext4-fix-typos-in-messages-and-comments-journalled-journaled.patch
reiserfs-fix-typos-in-messages-and-comments-journalled-journaled.patch
quota-add-a-convenience-macro-for-filesystems.patch
ext3-correct-mount-option-parsing-to-detect-when-quota-options-can-be-changed.patch
ext4-correct-mount-option-parsing-to-detect-when-quota-options-can-be-changed.patch
reiserfs-correct-mount-option-parsing-to-detect-when-quota-options-can-be-changed.patch
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