msung.com]
> > > Sent: Thursday, July 31, 2014 10:07 AM
> > > To: Chao Yu
> > > Cc: 'Jaegeuk Kim'; linux-fsde...@vger.kernel.org;
> > > linux-kernel@vger.kernel.org;
> > > linux-f2fs-de...@lists.sourceforge.net
> > > Subject: Re: [f2fs-dev]
nux-fsde...@vger.kernel.org;
> > linux-kernel@vger.kernel.org;
> > linux-f2fs-de...@lists.sourceforge.net
> > Subject: Re: [f2fs-dev] [PATCH] f2fs: reduce competition among node page
> > writes
> >
> > Hi Chao,
> >
> > On Wed, Jul 30, 2014 at 0
eforge.net
> Subject: Re: [f2fs-dev] [PATCH] f2fs: reduce competition among node page
> writes
>
> Hi Chao,
>
> On Wed, Jul 30, 2014 at 09:07:49PM +0800, Chao Yu wrote:
> > Hi Jaegeuk Changman,
> >
> > > -Original Message-
> > > From: Ch
linux-fsde...@vger.kernel.org; linux-kernel@vger.kernel.org;
> > linux-f2fs-de...@lists.sourceforge.net
> > Subject: [f2fs-dev] [PATCH] f2fs: reduce competition among node page writes
> >
> > We do not need to block on ->node_write among different node page writers
&
t; Subject: [f2fs-dev] [PATCH] f2fs: reduce competition among node page writes
>
> We do not need to block on ->node_write among different node page writers e.g.
> fsync/flush, unless we have a node page writer from write_checkpoint.
> So it's better use rw_semaphore instead of
We do not need to block on ->node_write among different node page writers e.g.
fsync/flush, unless we have a node page writer from write_checkpoint.
So it's better use rw_semaphore instead of mutex type for ->node_write to
promote performance.
Signed-off-by: Chao Yu
---
fs/f2fs/checkpoint.c |
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