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From: Vasiliy Tolstov <v.tolstov@selfip.ru>
Date: Wed, 2 Sep 2015 15:36:46 +0300
Message-ID: <CACaajQtGWxzD7DFNEVRAzOS56sni+dk4TgOUbEGf-pzf1zKFLA@mail.gmail.com>
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Subject: Re: [Qemu-devel] [PATCH 2/2] sheepdog: refine discard support
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To: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>
Cc: Teruaki Ishizaki <ishizaki.teruaki@lab.ntt.co.jp>, Jeff Cody <jcody@redhat.com>, sheepdog@lists.wpkg.org, qemu-devel@nongnu.org

2015-09-01 6:03 GMT+03:00 Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>:
> This patch refines discard support of the sheepdog driver. The
> existing discard mechanism was implemented on SD_OP_DISCARD_OBJ, which
> was introduced before fine grained reference counting on newer
> sheepdog. It doesn't care about relations of snapshots and clones and
> discards objects unconditionally.
>
> With this patch, the driver just updates an inode object for updating
> reference. Removing the object is done in sheep process side.
>
> Cc: Teruaki Ishizaki <ishizaki.teruaki@lab.ntt.co.jp>
> Cc: Vasiliy Tolstov <v.tolstov@selfip.ru>
> Cc: Jeff Cody <jcody@redhat.com>
> Signed-off-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>


I'm test this patch and now discard working properly and no errors in
sheepdog log file.

Tested-by: Vasiliy Tolstov <v.tolstov@selfip.ru>

-- 
Vasiliy Tolstov,
e-mail: v.tolstov@selfip.ru