2021-09-01 08:12:00

by Chao Yu

[permalink] [raw]
Subject: [PATCH v2] f2fs: avoid attaching SB_ACTIVE flag during mount

Quoted from [1]

"I do remember that I've added this code back then because otherwise
orphan cleanup was losing updates to quota files. But you're right
that now I don't see how that could be happening and it would be nice
if we could get rid of this hack"

[1] https://lore.kernel.org/linux-ext4/[email protected]/T/#m04990cfbc4f44592421736b504afcc346b2a7c00

Related fix in ext4 by
commit 72ffb49a7b62 ("ext4: do not set SB_ACTIVE in ext4_orphan_cleanup()").

f2fs has the same hack implementation in
- f2fs_recover_orphan_inodes()
- f2fs_recover_fsync_data()

Let's get rid of this hack as well in f2fs.

Cc: Zhang Yi <[email protected]>
Cc: Jan Kara <[email protected]>
Acked-by: Jan Kara <[email protected]>
Signed-off-by: Chao Yu <[email protected]>
---
v2:
- don't bother checkpoint disabling path
fs/f2fs/checkpoint.c | 3 ---
fs/f2fs/recovery.c | 8 ++------
2 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 83e9bc0f91ff..7d8803a4cbc2 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -705,9 +705,6 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi)
}

#ifdef CONFIG_QUOTA
- /* Needed for iput() to work correctly and not trash data */
- sbi->sb->s_flags |= SB_ACTIVE;
-
/*
* Turn on quotas which were not enabled for read-only mounts if
* filesystem has quota feature, so that they are updated correctly.
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 04655511d7f5..706ddb3c95c0 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -787,8 +787,6 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
}

#ifdef CONFIG_QUOTA
- /* Needed for iput() to work correctly and not trash data */
- sbi->sb->s_flags |= SB_ACTIVE;
/* Turn on quotas so that they are updated correctly */
quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY);
#endif
@@ -816,10 +814,8 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
err = recover_data(sbi, &inode_list, &tmp_inode_list, &dir_list);
if (!err)
f2fs_bug_on(sbi, !list_empty(&inode_list));
- else {
- /* restore s_flags to let iput() trash data */
- sbi->sb->s_flags = s_flags;
- }
+ else
+ f2fs_bug_on(sbi, sbi->sb->s_flags & SB_ACTIVE);
skip:
fix_curseg_write_pointer = !check_only || list_empty(&inode_list);

--
2.32.0


2021-09-04 00:25:54

by Jaegeuk Kim

[permalink] [raw]
Subject: Re: [PATCH v2] f2fs: avoid attaching SB_ACTIVE flag during mount

I remember this gave a regression before?

On 09/01, Chao Yu wrote:
> Quoted from [1]
>
> "I do remember that I've added this code back then because otherwise
> orphan cleanup was losing updates to quota files. But you're right
> that now I don't see how that could be happening and it would be nice
> if we could get rid of this hack"
>
> [1] https://lore.kernel.org/linux-ext4/[email protected]/T/#m04990cfbc4f44592421736b504afcc346b2a7c00
>
> Related fix in ext4 by
> commit 72ffb49a7b62 ("ext4: do not set SB_ACTIVE in ext4_orphan_cleanup()").
>
> f2fs has the same hack implementation in
> - f2fs_recover_orphan_inodes()
> - f2fs_recover_fsync_data()
>
> Let's get rid of this hack as well in f2fs.
>
> Cc: Zhang Yi <[email protected]>
> Cc: Jan Kara <[email protected]>
> Acked-by: Jan Kara <[email protected]>
> Signed-off-by: Chao Yu <[email protected]>
> ---
> v2:
> - don't bother checkpoint disabling path
> fs/f2fs/checkpoint.c | 3 ---
> fs/f2fs/recovery.c | 8 ++------
> 2 files changed, 2 insertions(+), 9 deletions(-)
>
> diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> index 83e9bc0f91ff..7d8803a4cbc2 100644
> --- a/fs/f2fs/checkpoint.c
> +++ b/fs/f2fs/checkpoint.c
> @@ -705,9 +705,6 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi)
> }
>
> #ifdef CONFIG_QUOTA
> - /* Needed for iput() to work correctly and not trash data */
> - sbi->sb->s_flags |= SB_ACTIVE;
> -
> /*
> * Turn on quotas which were not enabled for read-only mounts if
> * filesystem has quota feature, so that they are updated correctly.
> diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
> index 04655511d7f5..706ddb3c95c0 100644
> --- a/fs/f2fs/recovery.c
> +++ b/fs/f2fs/recovery.c
> @@ -787,8 +787,6 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
> }
>
> #ifdef CONFIG_QUOTA
> - /* Needed for iput() to work correctly and not trash data */
> - sbi->sb->s_flags |= SB_ACTIVE;
> /* Turn on quotas so that they are updated correctly */
> quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY);
> #endif
> @@ -816,10 +814,8 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
> err = recover_data(sbi, &inode_list, &tmp_inode_list, &dir_list);
> if (!err)
> f2fs_bug_on(sbi, !list_empty(&inode_list));
> - else {
> - /* restore s_flags to let iput() trash data */
> - sbi->sb->s_flags = s_flags;
> - }
> + else
> + f2fs_bug_on(sbi, sbi->sb->s_flags & SB_ACTIVE);
> skip:
> fix_curseg_write_pointer = !check_only || list_empty(&inode_list);
>
> --
> 2.32.0

2021-09-04 03:22:29

by Chao Yu

[permalink] [raw]
Subject: Re: [PATCH v2] f2fs: avoid attaching SB_ACTIVE flag during mount

On 2021/9/4 8:17, Jaegeuk Kim wrote:
> I remember this gave a regression before?

I have removed changes which bothers checkpoint disabling path, how
about testing this in dev-test branch for a while?

BTW, any plan to porting checkpoint disabling testcases from android
into xfstest suit?

Thanks,

>
> On 09/01, Chao Yu wrote:
>> Quoted from [1]
>>
>> "I do remember that I've added this code back then because otherwise
>> orphan cleanup was losing updates to quota files. But you're right
>> that now I don't see how that could be happening and it would be nice
>> if we could get rid of this hack"
>>
>> [1] https://lore.kernel.org/linux-ext4/[email protected]/T/#m04990cfbc4f44592421736b504afcc346b2a7c00
>>
>> Related fix in ext4 by
>> commit 72ffb49a7b62 ("ext4: do not set SB_ACTIVE in ext4_orphan_cleanup()").
>>
>> f2fs has the same hack implementation in
>> - f2fs_recover_orphan_inodes()
>> - f2fs_recover_fsync_data()
>>
>> Let's get rid of this hack as well in f2fs.
>>
>> Cc: Zhang Yi <[email protected]>
>> Cc: Jan Kara <[email protected]>
>> Acked-by: Jan Kara <[email protected]>
>> Signed-off-by: Chao Yu <[email protected]>
>> ---
>> v2:
>> - don't bother checkpoint disabling path
>> fs/f2fs/checkpoint.c | 3 ---
>> fs/f2fs/recovery.c | 8 ++------
>> 2 files changed, 2 insertions(+), 9 deletions(-)
>>
>> diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
>> index 83e9bc0f91ff..7d8803a4cbc2 100644
>> --- a/fs/f2fs/checkpoint.c
>> +++ b/fs/f2fs/checkpoint.c
>> @@ -705,9 +705,6 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi)
>> }
>>
>> #ifdef CONFIG_QUOTA
>> - /* Needed for iput() to work correctly and not trash data */
>> - sbi->sb->s_flags |= SB_ACTIVE;
>> -
>> /*
>> * Turn on quotas which were not enabled for read-only mounts if
>> * filesystem has quota feature, so that they are updated correctly.
>> diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
>> index 04655511d7f5..706ddb3c95c0 100644
>> --- a/fs/f2fs/recovery.c
>> +++ b/fs/f2fs/recovery.c
>> @@ -787,8 +787,6 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
>> }
>>
>> #ifdef CONFIG_QUOTA
>> - /* Needed for iput() to work correctly and not trash data */
>> - sbi->sb->s_flags |= SB_ACTIVE;
>> /* Turn on quotas so that they are updated correctly */
>> quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY);
>> #endif
>> @@ -816,10 +814,8 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
>> err = recover_data(sbi, &inode_list, &tmp_inode_list, &dir_list);
>> if (!err)
>> f2fs_bug_on(sbi, !list_empty(&inode_list));
>> - else {
>> - /* restore s_flags to let iput() trash data */
>> - sbi->sb->s_flags = s_flags;
>> - }
>> + else
>> + f2fs_bug_on(sbi, sbi->sb->s_flags & SB_ACTIVE);
>> skip:
>> fix_curseg_write_pointer = !check_only || list_empty(&inode_list);
>>
>> --
>> 2.32.0

2021-09-10 22:08:14

by Jaegeuk Kim

[permalink] [raw]
Subject: Re: [PATCH v2] f2fs: avoid attaching SB_ACTIVE flag during mount

On 09/04, Chao Yu wrote:
> On 2021/9/4 8:17, Jaegeuk Kim wrote:
> > I remember this gave a regression before?
>
> I have removed changes which bothers checkpoint disabling path, how
> about testing this in dev-test branch for a while?

Let me give it a try.

>
> BTW, any plan to porting checkpoint disabling testcases from android
> into xfstest suit?

No.

>
> Thanks,
>
> >
> > On 09/01, Chao Yu wrote:
> > > Quoted from [1]
> > >
> > > "I do remember that I've added this code back then because otherwise
> > > orphan cleanup was losing updates to quota files. But you're right
> > > that now I don't see how that could be happening and it would be nice
> > > if we could get rid of this hack"
> > >
> > > [1] https://lore.kernel.org/linux-ext4/[email protected]/T/#m04990cfbc4f44592421736b504afcc346b2a7c00
> > >
> > > Related fix in ext4 by
> > > commit 72ffb49a7b62 ("ext4: do not set SB_ACTIVE in ext4_orphan_cleanup()").
> > >
> > > f2fs has the same hack implementation in
> > > - f2fs_recover_orphan_inodes()
> > > - f2fs_recover_fsync_data()
> > >
> > > Let's get rid of this hack as well in f2fs.
> > >
> > > Cc: Zhang Yi <[email protected]>
> > > Cc: Jan Kara <[email protected]>
> > > Acked-by: Jan Kara <[email protected]>
> > > Signed-off-by: Chao Yu <[email protected]>
> > > ---
> > > v2:
> > > - don't bother checkpoint disabling path
> > > fs/f2fs/checkpoint.c | 3 ---
> > > fs/f2fs/recovery.c | 8 ++------
> > > 2 files changed, 2 insertions(+), 9 deletions(-)
> > >
> > > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> > > index 83e9bc0f91ff..7d8803a4cbc2 100644
> > > --- a/fs/f2fs/checkpoint.c
> > > +++ b/fs/f2fs/checkpoint.c
> > > @@ -705,9 +705,6 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi)
> > > }
> > > #ifdef CONFIG_QUOTA
> > > - /* Needed for iput() to work correctly and not trash data */
> > > - sbi->sb->s_flags |= SB_ACTIVE;
> > > -
> > > /*
> > > * Turn on quotas which were not enabled for read-only mounts if
> > > * filesystem has quota feature, so that they are updated correctly.
> > > diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
> > > index 04655511d7f5..706ddb3c95c0 100644
> > > --- a/fs/f2fs/recovery.c
> > > +++ b/fs/f2fs/recovery.c
> > > @@ -787,8 +787,6 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
> > > }
> > > #ifdef CONFIG_QUOTA
> > > - /* Needed for iput() to work correctly and not trash data */
> > > - sbi->sb->s_flags |= SB_ACTIVE;
> > > /* Turn on quotas so that they are updated correctly */
> > > quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY);
> > > #endif
> > > @@ -816,10 +814,8 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
> > > err = recover_data(sbi, &inode_list, &tmp_inode_list, &dir_list);
> > > if (!err)
> > > f2fs_bug_on(sbi, !list_empty(&inode_list));
> > > - else {
> > > - /* restore s_flags to let iput() trash data */
> > > - sbi->sb->s_flags = s_flags;
> > > - }
> > > + else
> > > + f2fs_bug_on(sbi, sbi->sb->s_flags & SB_ACTIVE);
> > > skip:
> > > fix_curseg_write_pointer = !check_only || list_empty(&inode_list);
> > > --
> > > 2.32.0