gfs2: Lock holder cleanup

Make the code more readable by cleaning up the different ways of
initializing lock holders and checking for initialized lock holders:
mark lock holders as uninitialized by setting the holder's glock to NULL
(gfs2_holder_mark_uninitialized) instead of zeroing out the entire
object or using a separate flag.  Recognize initialized holders by their
non-NULL glock (gfs2_holder_initialized).  Don't zero out holder objects
which are immeditiately initialized via gfs2_holder_init or
gfs2_glock_nq_init.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
This commit is contained in:
Andreas Gruenbacher
2016-06-17 07:31:27 -05:00
committed by Bob Peterson
parent cda9dd4207
commit 6df9f9a253
9 changed files with 46 additions and 35 deletions

View File

@@ -45,7 +45,7 @@ static void gfs2_init_inode_once(void *foo)
memset(&ip->i_res, 0, sizeof(ip->i_res));
RB_CLEAR_NODE(&ip->i_res.rs_node);
ip->i_hash_cache = NULL;
ip->i_iopen_gh.gh_gl = NULL;
gfs2_holder_mark_uninitialized(&ip->i_iopen_gh);
}
static void gfs2_init_glock_once(void *foo)