From: Alasdair G Kergon <agk@redhat.com>
Date: Tue, 3 Oct 2006 08:15:30 +0000 (-0700)
Subject: [PATCH] dm snapshot: add workqueue
X-Git-Tag: v2.6.19-rc1~270
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca3a931fd33b841cbcc5932f8eac7c43e0909242;p=pandora-kernel.git

[PATCH] dm snapshot: add workqueue

Add a workqueue so that I/O can be queued up to be flushed from a separate
thread (e.g.  if local interrupts are disabled).

A new per-snapshot spinlock pe_lock is introduced to protect queued_bios.

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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