1 files changed, 18 insertions, 0 deletions

diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index a8d9bcd0e19c..754426b1e52c 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -17,6 +17,7 @@
 #include <linux/rcupdate.h>
 #include <linux/rculist_bl.h>
 #include <linux/atomic.h>
+#include <linux/mempool.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -69,6 +70,16 @@ static void gfs2_init_gl_aspace_once(void *foo)
         address_space_init_once(mapping);
 }
 
+static void *gfs2_bh_alloc(gfp_t mask, void *data)
+{
+        return alloc_buffer_head(mask);
+}
+
+static void gfs2_bh_free(void *ptr, void *data)
+{
+        return free_buffer_head(ptr);
+}
+
 /**
  * init_gfs2_fs - Register GFS2 as a filesystem
  *
@@ -151,6 +162,10 @@ static int __init init_gfs2_fs(void)
         gfs2_control_wq = alloc_workqueue("gfs2_control",
                                WQ_NON_REENTRANT | WQ_UNBOUND | WQ_FREEZABLE, 0);
         if (!gfs2_control_wq)
+                goto fail_recovery;
+
+        gfs2_bh_pool = mempool_create(1024, gfs2_bh_alloc, gfs2_bh_free, NULL);
+        if (!gfs2_bh_pool)
                 goto fail_control;
 
         gfs2_register_debugfs();
@@ -160,6 +175,8 @@ static int __init init_gfs2_fs(void)
         return 0;
 
 fail_control:
+        destroy_workqueue(gfs2_control_wq);
+fail_recovery:
         destroy_workqueue(gfs_recovery_wq);
 fail_wq:
         unregister_filesystem(&gfs2meta_fs_type);
@@ -208,6 +225,7 @@ static void __exit exit_gfs2_fs(void)
 
         rcu_barrier();
 
+        mempool_destroy(gfs2_bh_pool);
         kmem_cache_destroy(gfs2_quotad_cachep);
         kmem_cache_destroy(gfs2_rgrpd_cachep);
         kmem_cache_destroy(gfs2_bufdata_cachep);