[Cluster-devel] [PATCH 02/11] gfs2: Don't add glocks to the LRU while still in use

[Andreas Gruenbacher <agruenba@redhat.com>]

Only add glocks to the LRU once they're no longer in use.  They will outlive
the inode they are associated with if they are cached (not GL_NOCACHE) or if
they have some pending work attached.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
---
 fs/gfs2/glock.c | 2 +-
 fs/gfs2/glock.h | 1 -
 fs/gfs2/super.c | 1 -
 3 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index cabffdc126fd..2aa21bab8e1c 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -178,7 +178,7 @@ static int demote_ok(const struct gfs2_glock *gl)
 }
 
 
-void gfs2_glock_add_to_lru(struct gfs2_glock *gl)
+static void gfs2_glock_add_to_lru(struct gfs2_glock *gl)
 {
 	if (!(gl->gl_ops->go_flags & GLOF_LRU))
 		return;
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index b8adaf80e4c5..dc23cbf6ae7a 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -238,7 +238,6 @@ extern void gfs2_glock_complete(struct gfs2_glock *gl, int ret);
 extern void gfs2_gl_hash_clear(struct gfs2_sbd *sdp);
 extern void gfs2_glock_finish_truncate(struct gfs2_inode *ip);
 extern void gfs2_glock_thaw(struct gfs2_sbd *sdp);
-extern void gfs2_glock_add_to_lru(struct gfs2_glock *gl);
 extern void gfs2_glock_free(struct gfs2_glock *gl);
 
 extern int __init gfs2_glock_init(void);
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 68cc7c291a81..2621d925812b 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1378,7 +1378,6 @@ static void gfs2_evict_inode(struct inode *inode)
 	gfs2_dir_hash_inval(ip);
 	glock_clear_object(ip->i_gl, ip);
 	wait_on_bit_io(&ip->i_flags, GIF_GLOP_PENDING, TASK_UNINTERRUPTIBLE);
-	gfs2_glock_add_to_lru(ip->i_gl);
 	gfs2_glock_put_eventually(ip->i_gl);
 	ip->i_gl = NULL;
 	if (gfs2_holder_initialized(&ip->i_iopen_gh)) {
-- 
2.20.1