linux/include/linux/ceph/msgpool.h at master · fabgithub/linux · GitHub

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#ifndef _FS_CEPH_MSGPOOL

#define _FS_CEPH_MSGPOOL

#include <linux/mempool.h>

#include <linux/ceph/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 type; /* preallocated message type */

int front_len; /* preallocated payload size */

};

extern int ceph_msgpool_init(struct ceph_msgpool *pool, int type,

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