[PATCH 1/5] GFS2: Eliminate __gfs2_glock_remove_from_lru

From: Steven Whitehouse
Date: Tue Feb 10 2015 - 05:36:49 EST


From: Bob Peterson <rpeterso@xxxxxxxxxx>

Since the only caller of function __gfs2_glock_remove_from_lru locks the
same spin_lock as gfs2_glock_remove_from_lru, the functions can be combined.

Signed-off-by: Bob Peterson <rpeterso@xxxxxxxxxx>
Signed-off-by: Steven Whitehouse <swhiteho@xxxxxxxxxx>

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index a23524a..aeb7bc9 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -173,19 +173,14 @@ void gfs2_glock_add_to_lru(struct gfs2_glock *gl)
spin_unlock(&lru_lock);
}

-static void __gfs2_glock_remove_from_lru(struct gfs2_glock *gl)
+static void gfs2_glock_remove_from_lru(struct gfs2_glock *gl)
{
+ spin_lock(&lru_lock);
if (!list_empty(&gl->gl_lru)) {
list_del_init(&gl->gl_lru);
atomic_dec(&lru_count);
clear_bit(GLF_LRU, &gl->gl_flags);
}
-}
-
-static void gfs2_glock_remove_from_lru(struct gfs2_glock *gl)
-{
- spin_lock(&lru_lock);
- __gfs2_glock_remove_from_lru(gl);
spin_unlock(&lru_lock);
}

@@ -205,9 +200,7 @@ void gfs2_glock_put(struct gfs2_glock *gl)

lockref_mark_dead(&gl->gl_lockref);

- spin_lock(&lru_lock);
- __gfs2_glock_remove_from_lru(gl);
- spin_unlock(&lru_lock);
+ gfs2_glock_remove_from_lru(gl);
spin_unlock(&gl->gl_lockref.lock);
spin_lock_bucket(gl->gl_hash);
hlist_bl_del_rcu(&gl->gl_list);
--
1.8.3.1

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