diff mbox

f2fs: should unset atomic flag after successful commit

Message ID 1452388201-26706-1-git-send-email-jaegeuk@kernel.org (mailing list archive)
State New, archived
Headers show

Commit Message

Jaegeuk Kim Jan. 10, 2016, 1:10 a.m. UTC
If there is an error during commit, we should keep the flag in order to
abort it.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

?? Jan. 11, 2016, 7:25 a.m. UTC | #1
Hi Jaegeuk,

> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@kernel.org]
> Sent: Sunday, January 10, 2016 9:10 AM
> To: linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org;
> linux-f2fs-devel@lists.sourceforge.net
> Cc: Jaegeuk Kim
> Subject: [f2fs-dev] [PATCH] f2fs: should unset atomic flag after successful commit
> 
> If there is an error during commit, we should keep the flag in order to
> abort it.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
> ---
>  fs/f2fs/file.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index dfaed51..db0b2cb 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -1374,10 +1374,10 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
>  		return ret;
> 
>  	if (f2fs_is_atomic_file(inode)) {
> -		clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);

It was added in 6282adbf932c ("f2fs: call set_page_dirty to attach i_wb for
cgroup ") to avoid panic in kernel with writeback supported cgroup. We
should keep it here.

>  		ret = commit_inmem_pages(inode, false);
>  		if (ret)
>  			goto err_out;
> +		clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);

How about setting atomic flag if there occurs an error during committing.

Thanks,

>  	}
> 
>  	ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);
> --
> 2.6.3
> 
> 
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Jaegeuk Kim Jan. 11, 2016, 11:32 p.m. UTC | #2
Hi Chao,

On Mon, Jan 11, 2016 at 03:25:11PM +0800, Chao Yu wrote:
> Hi Jaegeuk,
> 
> > -----Original Message-----
> > From: Jaegeuk Kim [mailto:jaegeuk@kernel.org]
> > Sent: Sunday, January 10, 2016 9:10 AM
> > To: linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org;
> > linux-f2fs-devel@lists.sourceforge.net
> > Cc: Jaegeuk Kim
> > Subject: [f2fs-dev] [PATCH] f2fs: should unset atomic flag after successful commit
> > 
> > If there is an error during commit, we should keep the flag in order to
> > abort it.
> > 
> > Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
> > ---
> >  fs/f2fs/file.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> > index dfaed51..db0b2cb 100644
> > --- a/fs/f2fs/file.c
> > +++ b/fs/f2fs/file.c
> > @@ -1374,10 +1374,10 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
> >  		return ret;
> > 
> >  	if (f2fs_is_atomic_file(inode)) {
> > -		clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
> 
> It was added in 6282adbf932c ("f2fs: call set_page_dirty to attach i_wb for
> cgroup ") to avoid panic in kernel with writeback supported cgroup. We
> should keep it here.
> 
> >  		ret = commit_inmem_pages(inode, false);
> >  		if (ret)
> >  			goto err_out;
> > +		clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
> 
> How about setting atomic flag if there occurs an error during committing.

Got your point.
Thanks,

> 
> Thanks,
> 
> >  	}
> > 
> >  	ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);
> > --
> > 2.6.3
> > 
> > 
> > ------------------------------------------------------------------------------
> > Site24x7 APM Insight: Get Deep Visibility into Application Performance
> > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
> > Monitor end-to-end web transactions and take corrective actions now
> > Troubleshoot faster and improve end-user experience. Signup Now!
> > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140
> > _______________________________________________
> > Linux-f2fs-devel mailing list
> > Linux-f2fs-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
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diff mbox

Patch

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index dfaed51..db0b2cb 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1374,10 +1374,10 @@  static int f2fs_ioc_commit_atomic_write(struct file *filp)
 		return ret;
 
 	if (f2fs_is_atomic_file(inode)) {
-		clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
 		ret = commit_inmem_pages(inode, false);
 		if (ret)
 			goto err_out;
+		clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
 	}
 
 	ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);