From: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Date: Mon, 24 May 2010 21:33:31 +0000 (-0700)
Subject: crc32: major optimization
X-Git-Tag: v2.6.35-rc1~306
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=836e2af92503f1642dbc3c3281ec68ec1dd39d2e;p=pandora-kernel.git

crc32: major optimization

Precompute more crc32 values(0xcc00, 0xcc0000 and 0xcc000000) into tables.
 This increases the table size from 1KB to 4KB but the performance benfit
makes it worth it:

28% faster on MPC8321, 266 MHz
2x faster on Core 2 Duo, 3.1GHz

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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