diff mbox series

[1/2] f2fs: report error if quota off error during umount

Message ID 20180906124436.89193-1-yuchao0@huawei.com
State New
Headers show
Series [1/2] f2fs: report error if quota off error during umount | expand

Commit Message

Chao Yu Sept. 6, 2018, 12:44 p.m. UTC
From: Yunlei He <heyunlei@huawei.com>


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.

Signed-off-by: Chao Yu <yuchao0@huawei.com>

Signed-off-by: Yunlei He <heyunlei@huawei.com>

---
 fs/f2fs/super.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

-- 
2.18.0.rc1

Comments

Jaegeuk Kim Sept. 7, 2018, 10:38 p.m. UTC | #1
I merged as one. Please check dev. :)

On 09/06, Chao Yu wrote:
> 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: Chao Yu <yuchao0@huawei.com>

> ---

>  fs/f2fs/super.c | 6 ++++--

>  1 file changed, 4 insertions(+), 2 deletions(-)

> 

> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c

> index c026aaccf218..328f58647f4c 100644

> --- a/fs/f2fs/super.c

> +++ b/fs/f2fs/super.c

> @@ -1900,10 +1900,12 @@ void f2fs_quota_off_umount(struct super_block *sb)

>  	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), Please "

> -				"run fsck to fix it.", type, err);

> +				"(type: %d, err: %d, ret:%d), Please "

> +				"run fsck to fix it.", type, err, ret);

>  			set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);

>  		}

>  	}

> -- 

> 2.18.0.rc1
Chao Yu Sept. 7, 2018, 10:53 p.m. UTC | #2
I can see it in dev, thanks for merging. ;)

On 2018/9/8 6:38, Jaegeuk Kim wrote:
> I merged as one. Please check dev. :)

> 

> On 09/06, Chao Yu wrote:

>> 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: Chao Yu <yuchao0@huawei.com>

>> ---

>>  fs/f2fs/super.c | 6 ++++--

>>  1 file changed, 4 insertions(+), 2 deletions(-)

>>

>> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c

>> index c026aaccf218..328f58647f4c 100644

>> --- a/fs/f2fs/super.c

>> +++ b/fs/f2fs/super.c

>> @@ -1900,10 +1900,12 @@ void f2fs_quota_off_umount(struct super_block *sb)

>>  	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), Please "

>> -				"run fsck to fix it.", type, err);

>> +				"(type: %d, err: %d, ret:%d), Please "

>> +				"run fsck to fix it.", type, err, ret);

>>  			set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);

>>  		}

>>  	}

>> -- 

>> 2.18.0.rc1
diff mbox series

Patch

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 8f026ba226fb..c026aaccf218 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1874,7 +1874,9 @@  static int f2fs_quota_off(struct super_block *sb, int type)
 	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))
@@ -1893,9 +1895,18 @@  static int f2fs_quota_off(struct super_block *sb, int type)
 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) {
+			f2fs_msg(sb, KERN_ERR,
+				"Fail to turn off disk quota "
+				"(type: %d, err: %d), Please "
+				"run fsck to fix it.", type, err);
+			set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
+		}
+	}
 }
 
 static int f2fs_dquot_commit(struct dquot *dquot)