dlm: use idr instead of list for recovered rsbs

When a large number of resources are being recovered,
a linear search of the recover_list takes a long time.
Use an idr in place of a list.

Signed-off-by: David Teigland <teigland@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index 3093207a7684..a5f82d5b3946 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -288,6 +288,7 @@ struct dlm_rsb {
         int                     res_nodeid;
         int                     res_master_nodeid;
         int                     res_dir_nodeid;
+        int                     res_id;         /* for ls_recover_idr */
         uint32_t                res_lvbseq;
         uint32_t                res_hash;
         uint32_t                res_bucket;     /* rsbtbl */
@@ -587,6 +588,8 @@ struct dlm_ls {
         struct list_head        ls_recover_list;
         spinlock_t              ls_recover_list_lock;
         int                     ls_recover_list_count;
+        struct idr              ls_recover_idr;
+        spinlock_t              ls_recover_idr_lock;
         wait_queue_head_t       ls_wait_general;
         struct mutex            ls_clear_proc_locks;