linux-ext4 - RE: [PATCH] ext4: fix COLLAPSE RANGE test failure when bigalloc is enable

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Date:	Wed, 30 Jul 2014 13:36:23 +0900
From:	Namjae Jeon <namjae.jeon@...sung.com>
To:	'Theodore Ts'o' <tytso@....edu>
Cc:	'linux-ext4' <linux-ext4@...r.kernel.org>,
	'Ashish Sangwan' <a.sangwan@...sung.com>
Subject: RE: [PATCH] ext4: fix COLLAPSE RANGE test failure when bigalloc is
 enable

> 
> On Thu, Jun 19, 2014 at 01:51:58PM +0900, Namjae Jeon wrote:
> >  On Wed, Jun 04, 2014 at 05:08:45PM +0900, Namjae Jeon wrote:
> > > > Blocks in collapse range should be collapsed per cluster unit when bigalloc
> > > > is enable. If bigalloc is not enable, EXT4_CLUSTER_SIZE will be same with
> > > > EXT4_BLOCK_SIZE.
> > > >
> > > > Signed-off-by: Namjae Jeon <namjae.jeon@...sung.com>
> > > > Signed-off-by: Ashish Sangwan <a.sangwan@...sung.com>
> > >
> > > Correct me if I'm wrong, but this patch enables COLLAPSE_RANGE when
> > > bigalloc is enabled.  The commit description (and the one-line
> > > summary) should emphasize this.
> > Yes, You're right. I will update description.
> 
> I don't think I saw an updated description, so I've taken care of
> updating the description and applied the patch:
Sorry, I forgot to update it..
Thanks Ted!

> 
> commit 3c17714e61314b101fb9bb671e7191ef1e9e63f3
> Author: Namjae Jeon <namjae.jeon@...sung.com>
> Date:   Tue Jul 29 10:45:31 2014 -0400
> 
>     ext4: fix COLLAPSE RANGE test for bigalloc file systems
> 
>     Blocks in collapse range should be collapsed per cluster unit when
>     bigalloc is enable. If bigalloc is not enable, EXT4_CLUSTER_SIZE will
>     be same with EXT4_BLOCK_SIZE.
> 
>     With this bug fixed, patch enables COLLAPSE_RANGE for bigalloc, which
>     fixes a large number of xfstest failures which use fsx.
> 
>     Signed-off-by: Namjae Jeon <namjae.jeon@...sung.com>
>     Signed-off-by: Ashish Sangwan <a.sangwan@...sung.com>
>     Signed-off-by: Theodore Ts'o <tytso@....edu>
> 
> 							- Ted

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