[GFS2] Reorganize function gfs2_glmutex_lock
commit398bbe68321947f6763fbc259a01eb548ce19408
authorBob Peterson <rpeterso@redhat.com>
Wed, 12 Dec 2007 01:13:54 +0000 (11 19:13 -0600)
committerSteven Whitehouse <swhiteho@redhat.com>
Fri, 25 Jan 2008 08:13:52 +0000 (25 08:13 +0000)
tree64cf07eb0f461aa5d26c2abdc873c8727d8a2bad
parent5fdc2eeb5d1d3800367f471690b01fcd1fd5b963
[GFS2] Reorganize function gfs2_glmutex_lock

This patch optimizes the function gfs2_glmutex_lock.
The basic theory is: Why bother initializing a holder, setting up
wait bits and then waiting on them, if you know the glock can be
yours.  So the holder stuff is placed inside the if checking if the
glock is locked.  This one needs careful scrutiny because changing
anything to do with locking should strike terror into one's heart.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
fs/gfs2/glock.c