ceph: rewrite msgpool using mempool_t
Since we don't need to maintain large pools of messages, we can just
use the standard mempool_t. We maintain a msgpool 'wrapper' because we
need the mempool_t* in the alloc function, and mempool gives us only
pool_data.
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/msgpool.h b/fs/ceph/msgpool.h
index bc834bf..62a61c7 100644
--- a/fs/ceph/msgpool.h
+++ b/fs/ceph/msgpool.h
@@ -1,6 +1,7 @@
#ifndef _FS_CEPH_MSGPOOL
#define _FS_CEPH_MSGPOOL
+#include <linux/mempool.h>
#include "messenger.h"
/*
@@ -8,18 +9,13 @@
* avoid unexpected OOM conditions.
*/
struct ceph_msgpool {
- spinlock_t lock;
+ mempool_t *pool;
int front_len; /* preallocated payload size */
- struct list_head msgs; /* msgs in the pool; each has 1 ref */
- int num, min; /* cur, min # msgs in the pool */
- bool blocking;
- wait_queue_head_t wait;
};
extern int ceph_msgpool_init(struct ceph_msgpool *pool,
int front_len, int size, bool blocking);
extern void ceph_msgpool_destroy(struct ceph_msgpool *pool);
-extern int ceph_msgpool_resv(struct ceph_msgpool *, int delta);
extern struct ceph_msg *ceph_msgpool_get(struct ceph_msgpool *,
int front_len);
extern void ceph_msgpool_put(struct ceph_msgpool *, struct ceph_msg *);