From: Andy Grover Date: Wed, 1 Apr 2009 08:20:20 +0000 (+0000) Subject: RDS: Use spinlock to protect 64b value update on 32b archs X-Git-Tag: v2.6.30-rc1~246^2~35 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8cbd9606a6367c221a7bbcc47f3ab1a8c31b6437;p=pandora-kernel.git RDS: Use spinlock to protect 64b value update on 32b archs We have a 64bit value that needs to be set atomically. This is easy and quick on all 64bit archs, and can also be done on x86/32 with set_64bit() (uses cmpxchg8b). However other 32b archs don't have this. I actually changed this to the current state in preparation for mainline because the old way (using a spinlock on 32b) resulted in unsightly #ifdefs in the code. But obviously, being correct takes precedence. Signed-off-by: Andy Grover Signed-off-by: David S. Miller --- Reading git-diff-tree failed