linux-ext4 - Re: [XFS Tests Punch Hole 2/3 v3] XFS TESTS: Add Fallocate Punch Hole Test Routines

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Message-ID: <20110521035704.GW32466@dastard>
Date:	Sat, 21 May 2011 13:57:04 +1000
From:	Dave Chinner <david@...morbit.com>
To:	Allison Henderson <achender@...ux.vnet.ibm.com>
Cc:	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Eric Sandeen <sandeen@...hat.com>,
	Ext4 Developers List <linux-ext4@...r.kernel.org>,
	xfs-oss <xfs@....sgi.com>
Subject: Re: [XFS Tests Punch Hole 2/3 v3] XFS TESTS: Add Fallocate Punch
 Hole Test Routines

On Fri, May 20, 2011 at 05:46:19PM -0700, Allison Henderson wrote:
> On 5/19/2011 6:22 PM, Allison Henderson wrote:
> >Also, there was one more test that I meant to be a part of this
> >collection, but I was not finished with it at the time I submitted the
> >patch for feedback. Basically it checks to see if a hole can still be
> >punched out when the disk is full. In ext4 this is allowable because
> >reserved space is used to allow the operation to proceed where it would
> >have otherwise failed. I'm not sure if this is also ext4 specific
> >though. Would this be another candidate for adding to 252? Thx!
> 
> I just didnt want this question to get washed away in the traffic.
> I am working on an updated patch set, should I include the extra
> test case?  Thx!

Yes, though probably not in the _generic_test_punch function. And
extra case specific to 252 that does something like:

	umount SCRATCH_DEV
	make a small filesystem
	scratch_mount
	prealloc to ENOSPC
	punch


Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com
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