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ceph: name msgpools; useful error messages

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Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-04-24 09:56:35 -07:00
parent 8c6efb58a5
commit 4f48280ee1
3 changed files with 16 additions and 7 deletions
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13
fs/ceph/msgpool.c
View File

@ -10,8 +10,12 @@
static void *alloc_fn(gfp_t gfp_mask, void *arg) static void *alloc_fn(gfp_t gfp_mask, void *arg)
{ {
struct ceph_msgpool *pool = arg; struct ceph_msgpool *pool = arg;
void *p;
return ceph_msg_new(0, pool->front_len); p = ceph_msg_new(0, pool->front_len);
if (!p)
pr_err("msgpool %s alloc failed\n", pool->name);
return p;
} }
static void free_fn(void *element, void *arg) static void free_fn(void *element, void *arg)
@ -20,12 +24,13 @@ static void free_fn(void *element, void *arg)
} }
int ceph_msgpool_init(struct ceph_msgpool *pool, int ceph_msgpool_init(struct ceph_msgpool *pool,
int front_len, int size, bool blocking) int front_len, int size, bool blocking, const char *name)
{ {
pool->front_len = front_len; pool->front_len = front_len;
pool->pool = mempool_create(size, alloc_fn, free_fn, pool); pool->pool = mempool_create(size, alloc_fn, free_fn, pool);
if (!pool->pool) if (!pool->pool)
return -ENOMEM; return -ENOMEM;
pool->name = name;
return 0; return 0;
} }
@ -38,8 +43,8 @@ struct ceph_msg *ceph_msgpool_get(struct ceph_msgpool *pool,
int front_len) int front_len)
{ {
if (front_len > pool->front_len) { if (front_len > pool->front_len) {
pr_err("msgpool_get pool %p need front %d, pool size is %d\n", pr_err("msgpool_get pool %s need front %d, pool size is %d\n",
pool, front_len, pool->front_len); pool->name, front_len, pool->front_len);
WARN_ON(1); WARN_ON(1);
/* try to alloc a fresh message */ /* try to alloc a fresh message */

4
fs/ceph/msgpool.h
View File

@ -9,12 +9,14 @@
* avoid unexpected OOM conditions. * avoid unexpected OOM conditions.
*/ */
struct ceph_msgpool { struct ceph_msgpool {
const char *name;
mempool_t *pool; mempool_t *pool;
int front_len; /* preallocated payload size */ int front_len; /* preallocated payload size */
}; };
extern int ceph_msgpool_init(struct ceph_msgpool *pool, extern int ceph_msgpool_init(struct ceph_msgpool *pool,
int front_len, int size, bool blocking); int front_len, int size, bool blocking,
const char *name);
extern void ceph_msgpool_destroy(struct ceph_msgpool *pool); extern void ceph_msgpool_destroy(struct ceph_msgpool *pool);
extern struct ceph_msg *ceph_msgpool_get(struct ceph_msgpool *, extern struct ceph_msg *ceph_msgpool_get(struct ceph_msgpool *,
int front_len); int front_len);

6
fs/ceph/osd_client.c
View File

@ -1214,11 +1214,13 @@ int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client)
if (!osdc->req_mempool) if (!osdc->req_mempool)
goto out; goto out;
err = ceph_msgpool_init(&osdc->msgpool_op, OSD_OP_FRONT_LEN, 10, true); err = ceph_msgpool_init(&osdc->msgpool_op, OSD_OP_FRONT_LEN, 10, true,
"osd_op");
if (err < 0) if (err < 0)
goto out_mempool; goto out_mempool;
err = ceph_msgpool_init(&osdc->msgpool_op_reply, err = ceph_msgpool_init(&osdc->msgpool_op_reply,
OSD_OPREPLY_FRONT_LEN, 10, true); OSD_OPREPLY_FRONT_LEN, 10, true,
"osd_op_reply");
if (err < 0) if (err < 0)
goto out_msgpool; goto out_msgpool;
return 0; return 0;