Re: [PATCH 1/2] block: fix leaks associated with discard request payload

From: Christoph Hellwig
Date: Sun Jun 27 2010 - 11:34:37 EST

On Sun, Jun 27, 2010 at 09:32:07PM +0900, FUJITA Tomonori wrote:
> On Sun, 27 Jun 2010 13:07:12 +0200
> Christoph Hellwig <hch@xxxxxx> wrote:
> > > How about this?
> >
> > As I tried to explain before this utterly confuses the I/O completion
> > path. With the patch applied even a simple mkfs.xfs that issues discard
> > just hangs.
> Wired. I just tried mkfs.xfs against scsi_debug with my block patches
> (I saw one discard command). Seemed that it worked fine.

Doesn't work for me against either a real SSD or WRITE SAME support in
qemu. But I think I didn't actually have your barrier patches applied,
so I'll try again with a clean tree.

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