ceph: use single osd op reply msg
Use a single ceph_msg for the osd reply, even when we are getting multiple replies. Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
parent
1679f876a6
commit
c16e786927
|
@ -13,7 +13,8 @@
|
|||
#include "decode.h"
|
||||
#include "auth.h"
|
||||
|
||||
#define OSD_REPLY_RESERVE_FRONT_LEN 512
|
||||
#define OSD_OP_FRONT_LEN 4096
|
||||
#define OSD_OPREPLY_FRONT_LEN 512
|
||||
|
||||
const static struct ceph_connection_operations osd_con_ops;
|
||||
|
||||
|
@ -75,17 +76,6 @@ static void calc_layout(struct ceph_osd_client *osdc,
|
|||
req->r_oid, req->r_oid_len, objoff, objlen, req->r_num_pages);
|
||||
}
|
||||
|
||||
static void remove_replies(struct ceph_osd_request *req)
|
||||
{
|
||||
int i;
|
||||
int max = ARRAY_SIZE(req->replies);
|
||||
|
||||
for (i=0; i<max; i++) {
|
||||
if (req->replies[i])
|
||||
ceph_msg_put(req->replies[i]);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* requests
|
||||
*/
|
||||
|
@ -99,7 +89,6 @@ void ceph_osdc_release_request(struct kref *kref)
|
|||
ceph_msg_put(req->r_request);
|
||||
if (req->r_reply)
|
||||
ceph_msg_put(req->r_reply);
|
||||
remove_replies(req);
|
||||
if (req->r_con_filling_msg) {
|
||||
dout("release_request revoking pages %p from con %p\n",
|
||||
req->r_pages, req->r_con_filling_msg);
|
||||
|
@ -117,60 +106,6 @@ void ceph_osdc_release_request(struct kref *kref)
|
|||
kfree(req);
|
||||
}
|
||||
|
||||
static int alloc_replies(struct ceph_osd_request *req, int num_reply)
|
||||
{
|
||||
int i;
|
||||
int max = ARRAY_SIZE(req->replies);
|
||||
|
||||
BUG_ON(num_reply > max);
|
||||
|
||||
for (i=0; i<num_reply; i++) {
|
||||
req->replies[i] = ceph_msg_new(0, OSD_REPLY_RESERVE_FRONT_LEN, 0, 0, NULL);
|
||||
if (IS_ERR(req->replies[i])) {
|
||||
int j;
|
||||
int err = PTR_ERR(req->replies[i]);
|
||||
for (j = 0; j<=i; j++) {
|
||||
ceph_msg_put(req->replies[j]);
|
||||
}
|
||||
return err;
|
||||
}
|
||||
}
|
||||
|
||||
for (; i<max; i++) {
|
||||
req->replies[i] = NULL;
|
||||
}
|
||||
|
||||
req->cur_reply = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct ceph_msg *__get_next_reply(struct ceph_connection *con,
|
||||
struct ceph_osd_request *req,
|
||||
int front_len)
|
||||
{
|
||||
struct ceph_msg *reply;
|
||||
if (req->r_con_filling_msg) {
|
||||
dout("revoking reply msg %p from old con %p\n", req->r_reply,
|
||||
req->r_con_filling_msg);
|
||||
ceph_con_revoke_message(req->r_con_filling_msg, req->r_reply);
|
||||
ceph_con_put(req->r_con_filling_msg);
|
||||
req->cur_reply = 0;
|
||||
}
|
||||
reply = req->replies[req->cur_reply];
|
||||
if (!reply || front_len > OSD_REPLY_RESERVE_FRONT_LEN) {
|
||||
/* maybe we can allocate it now? */
|
||||
reply = ceph_msg_new(0, front_len, 0, 0, NULL);
|
||||
if (!reply || IS_ERR(reply)) {
|
||||
pr_err(" reply alloc failed, front_len=%d\n", front_len);
|
||||
return ERR_PTR(-ENOMEM);
|
||||
}
|
||||
}
|
||||
req->r_con_filling_msg = ceph_con_get(con);
|
||||
req->r_reply = ceph_msg_get(reply); /* for duration of read over socket */
|
||||
return ceph_msg_get(reply);
|
||||
}
|
||||
|
||||
/*
|
||||
* build new request AND message, calculate layout, and adjust file
|
||||
* extent as needed.
|
||||
|
@ -201,7 +136,7 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
|
|||
void *p;
|
||||
int num_op = 1 + do_sync;
|
||||
size_t msg_size = sizeof(*head) + num_op*sizeof(*op);
|
||||
int err, i;
|
||||
int i;
|
||||
|
||||
if (use_mempool) {
|
||||
req = mempool_alloc(osdc->req_mempool, GFP_NOFS);
|
||||
|
@ -212,13 +147,6 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
|
|||
if (req == NULL)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
err = alloc_replies(req, num_reply);
|
||||
if (err) {
|
||||
ceph_osdc_put_request(req);
|
||||
return ERR_PTR(-ENOMEM);
|
||||
}
|
||||
req->r_num_prealloc_reply = num_reply;
|
||||
|
||||
req->r_osdc = osdc;
|
||||
req->r_mempool = use_mempool;
|
||||
kref_init(&req->r_kref);
|
||||
|
@ -229,7 +157,19 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
|
|||
|
||||
WARN_ON((flags & (CEPH_OSD_FLAG_READ|CEPH_OSD_FLAG_WRITE)) == 0);
|
||||
|
||||
/* create message; allow space for oid */
|
||||
/* create reply message */
|
||||
if (use_mempool)
|
||||
msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0);
|
||||
else
|
||||
msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY,
|
||||
OSD_OPREPLY_FRONT_LEN, 0, 0, NULL);
|
||||
if (IS_ERR(msg)) {
|
||||
ceph_osdc_put_request(req);
|
||||
return ERR_PTR(PTR_ERR(msg));
|
||||
}
|
||||
req->r_reply = msg;
|
||||
|
||||
/* create request message; allow space for oid */
|
||||
msg_size += 40;
|
||||
if (snapc)
|
||||
msg_size += sizeof(u64) * snapc->num_snaps;
|
||||
|
@ -819,21 +759,11 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
|
|||
* avoid a (safe but slower) revoke later.
|
||||
*/
|
||||
if (req->r_con_filling_msg == con && req->r_reply == msg) {
|
||||
dout(" got pages, dropping con_filling_msg ref %p\n", con);
|
||||
dout(" dropping con_filling_msg ref %p\n", con);
|
||||
req->r_con_filling_msg = NULL;
|
||||
ceph_con_put(con);
|
||||
}
|
||||
|
||||
if (req->r_reply) {
|
||||
/*
|
||||
* once we see the message has been received, we don't
|
||||
* need a ref (which is only needed for revoking
|
||||
* pages)
|
||||
*/
|
||||
ceph_msg_put(req->r_reply);
|
||||
req->r_reply = NULL;
|
||||
}
|
||||
|
||||
if (!req->r_got_reply) {
|
||||
unsigned bytes;
|
||||
|
||||
|
@ -1249,11 +1179,17 @@ int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client)
|
|||
if (!osdc->req_mempool)
|
||||
goto out;
|
||||
|
||||
err = ceph_msgpool_init(&osdc->msgpool_op, 4096, 10, true);
|
||||
err = ceph_msgpool_init(&osdc->msgpool_op, OSD_OP_FRONT_LEN, 10, true);
|
||||
if (err < 0)
|
||||
goto out_mempool;
|
||||
err = ceph_msgpool_init(&osdc->msgpool_op_reply,
|
||||
OSD_OPREPLY_FRONT_LEN, 10, true);
|
||||
if (err < 0)
|
||||
goto out_msgpool;
|
||||
return 0;
|
||||
|
||||
out_msgpool:
|
||||
ceph_msgpool_destroy(&osdc->msgpool_op);
|
||||
out_mempool:
|
||||
mempool_destroy(osdc->req_mempool);
|
||||
out:
|
||||
|
@ -1271,6 +1207,7 @@ void ceph_osdc_stop(struct ceph_osd_client *osdc)
|
|||
remove_old_osds(osdc, 1);
|
||||
mempool_destroy(osdc->req_mempool);
|
||||
ceph_msgpool_destroy(&osdc->msgpool_op);
|
||||
ceph_msgpool_destroy(&osdc->msgpool_op_reply);
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -1405,16 +1342,29 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
|
|||
if (!req) {
|
||||
*skip = 1;
|
||||
m = NULL;
|
||||
pr_info("alloc_msg unknown tid %llu from osd%d\n", tid,
|
||||
pr_info("get_reply unknown tid %llu from osd%d\n", tid,
|
||||
osd->o_osd);
|
||||
goto out;
|
||||
}
|
||||
m = __get_next_reply(con, req, front);
|
||||
if (!m || IS_ERR(m)) {
|
||||
*skip = 1;
|
||||
goto out;
|
||||
|
||||
if (req->r_con_filling_msg) {
|
||||
dout("get_reply revoking msg %p from old con %p\n",
|
||||
req->r_reply, req->r_con_filling_msg);
|
||||
ceph_con_revoke_message(req->r_con_filling_msg, req->r_reply);
|
||||
ceph_con_put(req->r_con_filling_msg);
|
||||
}
|
||||
|
||||
if (front > req->r_reply->front.iov_len) {
|
||||
pr_warning("get_reply front %d > preallocated %d\n",
|
||||
front, (int)req->r_reply->front.iov_len);
|
||||
m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front, 0, 0, NULL);
|
||||
if (IS_ERR(m))
|
||||
goto out;
|
||||
ceph_msg_put(req->r_reply);
|
||||
req->r_reply = m;
|
||||
}
|
||||
m = ceph_msg_get(req->r_reply);
|
||||
|
||||
if (data_len > 0) {
|
||||
err = __prepare_pages(con, hdr, req, tid, m);
|
||||
if (err < 0) {
|
||||
|
@ -1424,6 +1374,8 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
|
|||
}
|
||||
}
|
||||
*skip = 0;
|
||||
req->r_con_filling_msg = ceph_con_get(con);
|
||||
dout("get_reply tid %lld %p\n", tid, m);
|
||||
|
||||
out:
|
||||
mutex_unlock(&osdc->request_mutex);
|
||||
|
|
|
@ -53,7 +53,6 @@ struct ceph_osd_request {
|
|||
int r_flags; /* any additional flags for the osd */
|
||||
u32 r_sent; /* >0 if r_request is sending/sent */
|
||||
int r_got_reply;
|
||||
int r_num_prealloc_reply;
|
||||
|
||||
struct ceph_osd_client *r_osdc;
|
||||
struct kref r_kref;
|
||||
|
@ -77,9 +76,6 @@ struct ceph_osd_request {
|
|||
struct page **r_pages; /* pages for data payload */
|
||||
int r_pages_from_pool;
|
||||
int r_own_pages; /* if true, i own page list */
|
||||
|
||||
struct ceph_msg *replies[2];
|
||||
int cur_reply;
|
||||
};
|
||||
|
||||
struct ceph_osd_client {
|
||||
|
@ -106,6 +102,7 @@ struct ceph_osd_client {
|
|||
mempool_t *req_mempool;
|
||||
|
||||
struct ceph_msgpool msgpool_op;
|
||||
struct ceph_msgpool msgpool_op_reply;
|
||||
};
|
||||
|
||||
extern int ceph_osdc_init(struct ceph_osd_client *osdc,
|
||||
|
|
Loading…
Reference in a new issue