linux-sg2042/fs/ceph/msgpool.h

26 lines
692 B
C

#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