From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Tue, 5 Feb 2008 15:50:43 +0000 (+0100)
Subject: [S390] Cleanup & optimize bitops.
X-Git-Tag: v2.6.25-rc1~786^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0abbf05cdd69d74f92628bf444cd210ba046f6eb;p=pandora-kernel.git

[S390] Cleanup & optimize bitops.

The bitops header is now a bit shorter and easier to understand since
it uses less inline assembly. It requires some tricks to persuade the
compiler to generate decent code. The ffz/ffs functions now use the
_zb_findmap/_sb_findmap table as well.
With this cleanup the new bitops for ext4 can be implemented with a
few lines, instead of another large inline assembly.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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