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| author | zhangyi (F) <yi.zhang@huawei.com> | 2017-08-24 22:19:39 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-27 12:00:14 +0300 |
| commit | cd46241eb03ca90f58553ad15e484c4f86d6fd64 (patch) | |
| tree | 848b8ec9ec42b921e71cba5c0f8c2b1e8b402afb /fs | |
| parent | 5e9d28b003b0312bc1c17994edb84bbb9a4a060a (diff) | |
| download | linux-cd46241eb03ca90f58553ad15e484c4f86d6fd64.tar.xz | |
ext4: fix incorrect quotaoff if the quota feature is enabled
commit b0a5a9589decd07db755d6a8d9c0910d96ff7992 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -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 68345a9e59b8..079b4ed457cb 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2243,7 +2243,7 @@ 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); @@ -2309,9 +2309,9 @@ 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 |