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| author | zhangyi (F) <yi.zhang@huawei.com> | 2017-08-24 15:19:39 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2017-08-24 15:19:39 -0400 |
| commit | b0a5a9589decd07db755d6a8d9c0910d96ff7992 (patch) | |
| tree | c870c62318bb63a3c3620e35bfa7adba2253ae20 /fs/ext4 | |
| parent | 918dc9d0ab8565886de3ea8bac329e2b102e7f3a (diff) | |
| download | linux-b0a5a9589decd07db755d6a8d9c0910d96ff7992.tar.bz2 | |
ext4: fix incorrect quotaoff if the quota feature is enabled
Current ext4 quota should always "usage enabled" if the
quota feautre is enabled. But in ext4_orphan_cleanup(), it
turn quotas off directly (used for the older journaled
quota), so we cannot turn it on again via "quotaon" unless
umount and remount ext4.
Simple reproduce:
mkfs.ext4 -O project,quota /dev/vdb1
mount -o prjquota /dev/vdb1 /mnt
chattr -p 123 /mnt
chattr +P /mnt
touch /mnt/aa /mnt/bb
exec 100<>/mnt/aa
rm -f /mnt/aa
sync
echo c > /proc/sysrq-trigger
#reboot and mount
mount -o prjquota /dev/vdb1 /mnt
#query status
quotaon -Ppv /dev/vdb1
#output
quotaon: Cannot find mountpoint for device /dev/vdb1
quotaon: No correct mountpoint specified.
This patch add check for journaled quotas to avoid incorrect
quotaoff when ext4 has quota feautre.
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org # 3.18
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/super.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index d61a70e2193a..cade5c894f4a 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2442,7 +2442,7 @@ static void ext4_orphan_cleanup(struct super_block *sb, #ifdef CONFIG_QUOTA /* Needed for iput() to work correctly and not trash data */ sb->s_flags |= MS_ACTIVE; - /* Turn on quotas so that they are updated correctly */ + /* Turn on journaled quotas so that they are updated correctly */ for (i = 0; i < EXT4_MAXQUOTAS; i++) { if (EXT4_SB(sb)->s_qf_names[i]) { int ret = ext4_quota_on_mount(sb, i); @@ -2510,9 +2510,9 @@ static void ext4_orphan_cleanup(struct super_block *sb, ext4_msg(sb, KERN_INFO, "%d truncate%s cleaned up", PLURAL(nr_truncates)); #ifdef CONFIG_QUOTA - /* Turn quotas off */ + /* Turn off journaled quotas if they were enabled for orphan cleanup */ for (i = 0; i < EXT4_MAXQUOTAS; i++) { - if (sb_dqopt(sb)->files[i]) + if (EXT4_SB(sb)->s_qf_names[i] && sb_dqopt(sb)->files[i]) dquot_quota_off(sb, i); } #endif |