From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Wed, 10 Jun 2009 04:38:40 +0000 (+0000)
Subject: block: Add bio_list_peek()
X-Git-Tag: v2.6.31-rc1~314^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=13685a1654b65357fb34066a98ef40445f7820fc;p=pandora-kernel.git

block: Add bio_list_peek()

Introduce bio_list_peek(), to obtain a pointer to the first bio on the bio_list
without actually removing it from the list. This is needed when you want to
serialize based on the list being empty or not.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

Reading git-diff-tree failed