reiserfs_quota_on() unpacks a tail of quota file in case it has one. But after
BKL conversion, reiserfs_unpack() expects to be called with write_lock held.
So acquire the lock before calling reiserfs_unpack() to avoid assertion
failures.
Reported-by: markus.gapp@xxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
---
fs/reiserfs/super.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
Frederic, would you merge this patch or should I merge it?
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 6e85cfd..73c000f 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2059,7 +2059,9 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
inode = path->dentry->d_inode;
/* We must not pack tails for quota files on reiserfs for quota IO to work */
if (!(REISERFS_I(inode)->i_flags & i_nopack_mask)) {
+ reiserfs_write_lock(sb);
err = reiserfs_unpack(inode, NULL);
+ reiserfs_write_unlock(sb);
if (err) {
reiserfs_warning(sb, "super-6520",
"Unpacking tail of quota file failed"
--
1.7.1
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