4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yunlei He heyunlei@huawei.com
[ Upstream commit cda9cc595f0bb6ffa51a4efc4b6533dfa4039b4c ]
Now, we depend on fsck to ensure quota file data is ok, so we scan whole partition if checkpoint without umount flag. It's same for quota off error case, which may make quota file data inconsistent.
generic/019 reports below error:
__quota_error: 1160 callbacks suppressed Quota error (device zram1): write_blk: dquota write failed Quota error (device zram1): qtree_write_dquot: Error -28 occurred while creating quota Quota error (device zram1): write_blk: dquota write failed Quota error (device zram1): qtree_write_dquot: Error -28 occurred while creating quota Quota error (device zram1): write_blk: dquota write failed Quota error (device zram1): qtree_write_dquot: Error -28 occurred while creating quota Quota error (device zram1): write_blk: dquota write failed Quota error (device zram1): qtree_write_dquot: Error -28 occurred while creating quota Quota error (device zram1): write_blk: dquota write failed Quota error (device zram1): qtree_write_dquot: Error -28 occurred while creating quota VFS: Busy inodes after unmount of zram1. Self-destruct in 5 seconds. Have a nice day...
If we failed in below path due to fail to write dquot block, we will miss to release quota inode, fix it.
- f2fs_put_super - f2fs_quota_off_umount - f2fs_quota_off - f2fs_quota_sync <-- failed - dquot_quota_off <-- missed to call
Signed-off-by: Yunlei He heyunlei@huawei.com Signed-off-by: Chao Yu yuchao0@huawei.com Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/f2fs/super.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-)
--- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1852,7 +1852,9 @@ static int f2fs_quota_off(struct super_b if (!inode || !igrab(inode)) return dquot_quota_off(sb, type);
- f2fs_quota_sync(sb, type); + err = f2fs_quota_sync(sb, type); + if (err) + goto out_put;
err = dquot_quota_off(sb, type); if (err || f2fs_sb_has_quota_ino(sb)) @@ -1871,9 +1873,20 @@ out_put: void f2fs_quota_off_umount(struct super_block *sb) { int type; + int err;
- for (type = 0; type < MAXQUOTAS; type++) - f2fs_quota_off(sb, type); + for (type = 0; type < MAXQUOTAS; type++) { + err = f2fs_quota_off(sb, type); + if (err) { + int ret = dquot_quota_off(sb, type); + + f2fs_msg(sb, KERN_ERR, + "Fail to turn off disk quota " + "(type: %d, err: %d, ret:%d), Please " + "run fsck to fix it.", type, err, ret); + set_sbi_flag(F2FS_SB(sb), SBI_NEED_FSCK); + } + } }
static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)