[GFS2] Get rid of gl_waiters2
This patch reduces memory by replacing the int variable
gl_waiters2 by a single bit in the gl_flags.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index befcda0..951cb91e 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -595,11 +595,12 @@
blocked = rq_mutex(gh);
} else if (test_bit(GLF_DEMOTE, &gl->gl_flags)) {
blocked = rq_demote(gl);
- if (gl->gl_waiters2 && !blocked) {
+ if (test_bit(GLF_WAITERS2, &gl->gl_flags) &&
+ !blocked) {
set_bit(GLF_DEMOTE, &gl->gl_flags);
gl->gl_demote_state = LM_ST_UNLOCKED;
}
- gl->gl_waiters2 = 0;
+ clear_bit(GLF_WAITERS2, &gl->gl_flags);
} else if (!list_empty(&gl->gl_waiters3)) {
gh = list_entry(gl->gl_waiters3.next,
struct gfs2_holder, gh_list);
@@ -710,7 +711,7 @@
} else if (gl->gl_demote_state != LM_ST_UNLOCKED &&
gl->gl_demote_state != state) {
if (test_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags))
- gl->gl_waiters2 = 1;
+ set_bit(GLF_WAITERS2, &gl->gl_flags);
else
gl->gl_demote_state = LM_ST_UNLOCKED;
}