From: Steven Whitehouse Date: Fri, 27 Nov 2009 10:31:11 +0000 (+0000) Subject: GFS2: Fix glock refcount issues X-Git-Tag: v2.6.33-rc1~410^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26bb7505cf7db3560286be9f6384b6d3911f78b5;p=pandora-kernel.git GFS2: Fix glock refcount issues This patch fixes some ref counting issues. Firstly by moving the point at which we drop the ref count after a dlm lock operation has completed we ensure that we never call gfs2_glock_hold() on a lock with a zero ref count. Secondly, by using atomic_dec_and_lock() in gfs2_glock_put() we ensure that at no time will a glock with zero ref count appear on the lru_list. That means that we can remove the check for this in our shrinker (which was racy). Signed-off-by: Steven Whitehouse --- Reading git-diff-tree failed