diff options
| author | Bob Peterson <rpeterso@redhat.com> | 2011-10-26 15:24:55 -0500 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2011-11-18 10:20:15 -0600 |
| commit | 9beb3bf5a92bb8fc6503f844bf0772df29f14a02 (patch) | |
| tree | c60963c27d0a93ae1f572e6fda9c090a4a702d4e /fs/dlm/dlm_internal.h | |
| parent | c3b92c8787367a8bb53d57d9789b558f1295cc96 (diff) | |
| download | blackbird-op-linux-9beb3bf5a92bb8fc6503f844bf0772df29f14a02.tar.gz blackbird-op-linux-9beb3bf5a92bb8fc6503f844bf0772df29f14a02.zip | |
dlm: convert rsb list to rb_tree
Change the linked lists to rb_tree's in the rsb
hash table to speed up searches. Slow rsb searches
were having a large impact on gfs2 performance due
to the large number of dlm locks gfs2 uses.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/dlm_internal.h')
| -rw-r--r-- | fs/dlm/dlm_internal.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index fe2860c02449..5685a9a5dba2 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -103,8 +103,8 @@ struct dlm_dirtable { }; struct dlm_rsbtable { - struct list_head list; - struct list_head toss; + struct rb_root keep; + struct rb_root toss; spinlock_t lock; }; @@ -285,7 +285,10 @@ struct dlm_rsb { unsigned long res_toss_time; uint32_t res_first_lkid; struct list_head res_lookup; /* lkbs waiting on first */ - struct list_head res_hashchain; /* rsbtbl */ + union { + struct list_head res_hashchain; + struct rb_node res_hashnode; /* rsbtbl */ + }; struct list_head res_grantqueue; struct list_head res_convertqueue; struct list_head res_waitqueue; |
