[stgt] [PATCHes] Updated patches for thin-provisioning support

FUJITA Tomonori fujita.tomonori at lab.ntt.co.jp
Sun Apr 15 01:08:02 CEST 2012

On Sun, 15 Apr 2012 07:15:10 +1000
ronnie sahlberg <ronniesahlberg at gmail.com> wrote:

> Fair enough.

xfs and ext4 handle it so I tend to blame btrfs. I need to investigate
the issue more though.

> Please find attached an update to the UNMAP patch that only tries to
> punch a hole for the hole region
> and ignores the underlying block boundaries.
> It will rely on the underlying filesystem to zero out any unaligned regions.

Can we use scsi_lu->dev instead of doing fstat every time?

> You still need the "TGTIMG patch to be applied first.

I've applied the first. Thanks.

> After this patch, I also have patches to add WRITE_SAME10/16 that can
> also be used to punch holes in LUNs.

Sounds great.
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