tree 82d1a46721528dfd088a3edcfe5761a4d62fac26
parent 884d179dff3aa98a73c3ba9dee05fd6050d664f0
author Jan Kara <jack@suse.cz> 1232980366 +0100
committer Jan Kara <jack@suse.cz> 1238030315 +0100

quota: Make global quota locks cacheline aligned

Andrew Morton has suggested that three global quota locks can end up in the
same cacheline which can result in bad cacheline ping-pong on SMP machines.
Make locks cacheline aligned so that we avoid this problem (thanks goes to
Andrew for the idea).

Signed-off-by: Jan Kara <jack@suse.cz>
CC: Andrew Morton <akpm@linux-foundation.org>