The patch titled
Subject: quota: check presence of quota operation structures instead of ->quota_read and ->quota_write callbacks
has been added to the -mm mm-unstable branch. Its filename is
quota-check-presence-of-quota-operation-structures-instead-of-quota_read-and-quota_write-callbacks.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/quota-check-presence-of-quota-operation-structures-instead-of-quota_read-and-quota_write-callbacks.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Jan Kara <jack@xxxxxxx>
Subject: quota: check presence of quota operation structures instead of ->quota_read and ->quota_write callbacks
Date: Thu, 13 Jul 2023 15:48:45 +0200
Currently we check whether superblock has ->quota_read and ->quota_write
operations to check whether filesystem supports quotas. However for
example for shmfs we will not read or write dquots so check whether quota
operations are set in the superblock instead.
Link: https://lkml.kernel.org/r/20230713134848.249779-4-cem@xxxxxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
Reviewed-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Christian Brauner <brauner@xxxxxxxxxx>
Cc: Darrick J. Wong <djwong@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Lukas Czerner <lczerner@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/quota/dquot.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/quota/dquot.c~quota-check-presence-of-quota-operation-structures-instead-of-quota_read-and-quota_write-callbacks
+++ a/fs/quota/dquot.c
@@ -2367,7 +2367,7 @@ int dquot_load_quota_sb(struct super_blo
if (!fmt)
return -ESRCH;
- if (!sb->s_op->quota_write || !sb->s_op->quota_read ||
+ if (!sb->dq_op || !sb->s_qcop ||
(type == PRJQUOTA && sb->dq_op->get_projid == NULL)) {
error = -EINVAL;
goto out_fmt;
_
Patches currently in -mm which might be from jack@xxxxxxx are
quota-check-presence-of-quota-operation-structures-instead-of-quota_read-and-quota_write-callbacks.patch
