From: Borislav Petkov <petkovbb@googlemail.com>
Date: Sun, 27 Apr 2008 13:38:32 +0000 (+0200)
Subject: ide-tape: improve buffer allocation strategy
X-Git-Tag: v2.6.26-rc1~1029^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41aa17069ea8d2b5cd2ca1ef7ff6cdb7c6abec95;p=pandora-kernel.git

ide-tape: improve buffer allocation strategy

Instead of allocating pages for the buffer one by one, take advantage of the
buddy alloc system and request them 2^order at a time. This increases the chance
for bigger buffer parts to be contigious and reduces loop iteration count. While
at it, rename function __idetape_kmalloc_stage() to ide_tape_kmalloc_buffer().

[bart: fold with "ide-tape: fix mem leak" patch to preserve bisectability]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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