From: Peng Tao <bergwolf@gmail.com>
Date: Thu, 12 Jan 2012 15:18:47 +0000 (+0800)
Subject: pnfsblock: don't spinlock when freeing block_dev
X-Git-Tag: v3.2.2~52
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e0f9f47b49048c1a809a9bfff85002cb7fbf8e3;p=pandora-kernel.git

pnfsblock: don't spinlock when freeing block_dev

commit 93a3844ee0f843b05a1df4b52e1a19ff26b98d24 upstream.

bl_free_block_dev() may sleep. We can not call it with spinlock held.
Besides, there is no need to take bm_lock as we are last user freeing bm_devlist.

Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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