aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/ceph/msgpool.h
blob: a362605f93682a8ffe213fc8a3bc7d06f4cc3187 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
#ifndef _FS_CEPH_MSGPOOL
#define _FS_CEPH_MSGPOOL

#include <linux/mempool.h>
#include "messenger.h"

/*
 * we use memory pools for preallocating messages we may receive, to
 * avoid unexpected OOM conditions.
 */
struct ceph_msgpool {
	const char *name;
	mempool_t *pool;
	int front_len;          /* preallocated payload size */
};

extern int ceph_msgpool_init(struct ceph_msgpool *pool,
			     int front_len, int size, bool blocking,
			     const char *name);
extern void ceph_msgpool_destroy(struct ceph_msgpool *pool);
extern struct ceph_msg *ceph_msgpool_get(struct ceph_msgpool *,
					 int front_len);
extern void ceph_msgpool_put(struct ceph_msgpool *, struct ceph_msg *);

#endif