Messages in this thread | | | Date | Tue, 16 Nov 2010 07:50:16 -0500 | From | Josef Bacik <> | Subject | Re: [PATCH 4/6] Ext4: fail if we try to use hole punch |
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On Tue, Nov 16, 2010 at 02:25:35PM +0200, Avi Kivity wrote: > On 11/15/2010 07:05 PM, Josef Bacik wrote: >> Ext4 doesn't have the ability to punch holes yet, so make sure we return >> EOPNOTSUPP if we try to use hole punching through fallocate. This support can >> be added later. Thanks, >> > > Instead of teaching filesystems to fail if they don't support the > capability, why don't supporting filesystems say so, allowing the fail > code to be in common code? >
There is no simple way to test if a filesystem supports hole punching or not so the check has to be done per fs. Thanks,
Josef
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