2020-05-04 14:39:08

by Jaegeuk Kim

[permalink] [raw]
Subject: [PATCH] f2fs: remove redundant check in f2fs_force_buffered_io

From: Daeho Jeong <[email protected]>

We already checked whether the file is compressed or not in
f2fs_post_read_required(). So removed f2fs_compressed_file()
in f2fs_force_buffered_io().

Signed-off-by: Daeho Jeong <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
---
fs/f2fs/f2fs.h | 2 --
1 file changed, 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 6b7b963641696..01a00fc808361 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4064,8 +4064,6 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
return true;
if (f2fs_is_multi_device(sbi))
return true;
- if (f2fs_compressed_file(inode))
- return true;
/*
* for blkzoned device, fallback direct IO to buffered IO, so
* all IOs can be serialized by log-structured write.
--
2.26.2.526.g744177e7f7-goog


2020-05-05 02:01:51

by Chao Yu

[permalink] [raw]
Subject: Re: [f2fs-dev] [PATCH] f2fs: remove redundant check in f2fs_force_buffered_io

On 2020-5-4 22:35, Jaegeuk Kim wrote:
> From: Daeho Jeong <[email protected]>
>
> We already checked whether the file is compressed or not in
> f2fs_post_read_required(). So removed f2fs_compressed_file()
> in f2fs_force_buffered_io().

Agreed, since I have sent similar patch before:

https://lkml.org/lkml/2020/3/24/1819

Just want to know what's the change of backport concern now.

Thanks,

>
> Signed-off-by: Daeho Jeong <[email protected]>
> Signed-off-by: Jaegeuk Kim <[email protected]>
> ---
> fs/f2fs/f2fs.h | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index 6b7b963641696..01a00fc808361 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -4064,8 +4064,6 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
> return true;
> if (f2fs_is_multi_device(sbi))
> return true;
> - if (f2fs_compressed_file(inode))
> - return true;
> /*
> * for blkzoned device, fallback direct IO to buffered IO, so
> * all IOs can be serialized by log-structured write.
>

2020-05-05 03:28:45

by Jaegeuk Kim

[permalink] [raw]
Subject: Re: [f2fs-dev] [PATCH] f2fs: remove redundant check in f2fs_force_buffered_io

On 05/05, Chao Yu wrote:
> On 2020-5-4 22:35, Jaegeuk Kim wrote:
> > From: Daeho Jeong <[email protected]>
> >
> > We already checked whether the file is compressed or not in
> > f2fs_post_read_required(). So removed f2fs_compressed_file()
> > in f2fs_force_buffered_io().
>
> Agreed, since I have sent similar patch before:
>
> https://lkml.org/lkml/2020/3/24/1819

Heh, as I couldn't find yours, I was actually waiting for you to point out. :)

>
> Just want to know what's the change of backport concern now.

Old ICE support had to decouple f2fs_post_read_required() and
f2fs_forced_buffered_io(). Now, I decide to manage this as we
need to manage this for one kernel version only.

Thanks,

>
> Thanks,
>
> >
> > Signed-off-by: Daeho Jeong <[email protected]>
> > Signed-off-by: Jaegeuk Kim <[email protected]>
> > ---
> > fs/f2fs/f2fs.h | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> > index 6b7b963641696..01a00fc808361 100644
> > --- a/fs/f2fs/f2fs.h
> > +++ b/fs/f2fs/f2fs.h
> > @@ -4064,8 +4064,6 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
> > return true;
> > if (f2fs_is_multi_device(sbi))
> > return true;
> > - if (f2fs_compressed_file(inode))
> > - return true;
> > /*
> > * for blkzoned device, fallback direct IO to buffered IO, so
> > * all IOs can be serialized by log-structured write.
> >

2020-05-06 06:51:27

by Chao Yu

[permalink] [raw]
Subject: Re: [f2fs-dev] [PATCH] f2fs: remove redundant check in f2fs_force_buffered_io

On 2020/5/5 11:23, Jaegeuk Kim wrote:
> On 05/05, Chao Yu wrote:
>> On 2020-5-4 22:35, Jaegeuk Kim wrote:
>>> From: Daeho Jeong <[email protected]>
>>>
>>> We already checked whether the file is compressed or not in
>>> f2fs_post_read_required(). So removed f2fs_compressed_file()
>>> in f2fs_force_buffered_io().
>>
>> Agreed, since I have sent similar patch before:
>>
>> https://lkml.org/lkml/2020/3/24/1819
>
> Heh, as I couldn't find yours, I was actually waiting for you to point out. :)

Well, all patches sent to f2fs mailing list have been archived in
lore.kernel.org/linux-f2fs-devel. :)

https://lore.kernel.org/linux-f2fs-devel/[email protected]/

>
>>
>> Just want to know what's the change of backport concern now.
>
> Old ICE support had to decouple f2fs_post_read_required() and
> f2fs_forced_buffered_io(). Now, I decide to manage this as we

Copied.

> need to manage this for one kernel version only.

Okay, thanks for the explanation.

Thanks,

>
> Thanks,
>
>>
>> Thanks,
>>
>>>
>>> Signed-off-by: Daeho Jeong <[email protected]>
>>> Signed-off-by: Jaegeuk Kim <[email protected]>
>>> ---
>>> fs/f2fs/f2fs.h | 2 --
>>> 1 file changed, 2 deletions(-)
>>>
>>> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
>>> index 6b7b963641696..01a00fc808361 100644
>>> --- a/fs/f2fs/f2fs.h
>>> +++ b/fs/f2fs/f2fs.h
>>> @@ -4064,8 +4064,6 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
>>> return true;
>>> if (f2fs_is_multi_device(sbi))
>>> return true;
>>> - if (f2fs_compressed_file(inode))
>>> - return true;
>>> /*
>>> * for blkzoned device, fallback direct IO to buffered IO, so
>>> * all IOs can be serialized by log-structured write.
>>>
>
>
> _______________________________________________
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> [email protected]
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> .
>