[GFS2] Allocate gfs2_rgrpd from slab memory

This patch moves the gfs2_rgrpd structure to its own slab
memory.  This makes it easier to control and monitor, and
yields less memory fragmentation.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 9c7765c12d62..053e2ebbbd50 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -89,6 +89,12 @@ static int __init init_gfs2_fs(void)
         if (!gfs2_bufdata_cachep)
                 goto fail;
 
+        gfs2_rgrpd_cachep = kmem_cache_create("gfs2_rgrpd",
+                                              sizeof(struct gfs2_rgrpd),
+                                              0, 0, NULL);
+        if (!gfs2_rgrpd_cachep)
+                goto fail;
+
         error = register_filesystem(&gfs2_fs_type);
         if (error)
                 goto fail;
@@ -108,6 +114,9 @@ fail_unregister:
 fail:
         gfs2_glock_exit();
 
+        if (gfs2_rgrpd_cachep)
+                kmem_cache_destroy(gfs2_rgrpd_cachep);
+
         if (gfs2_bufdata_cachep)
                 kmem_cache_destroy(gfs2_bufdata_cachep);
 
@@ -133,6 +142,7 @@ static void __exit exit_gfs2_fs(void)
         unregister_filesystem(&gfs2_fs_type);
         unregister_filesystem(&gfs2meta_fs_type);
 
+        kmem_cache_destroy(gfs2_rgrpd_cachep);
         kmem_cache_destroy(gfs2_bufdata_cachep);
         kmem_cache_destroy(gfs2_inode_cachep);
         kmem_cache_destroy(gfs2_glock_cachep);