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ceph: allocate middle of message before stating to read

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Both front and middle parts of the message are now being
allocated at the ceph_alloc_msg().

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
This commit is contained in:
Yehuda Sadeh
2010-01-08 13:58:34 -08:00
committed by Sage Weil
parent 5b1daecd59
commit 2450418c47
5 changed files with 115 additions and 80 deletions
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17
fs/ceph/osd_client.c
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@@ -1304,18 +1304,28 @@ static void dispatch(struct ceph_connection *con, struct ceph_msg *msg)
}
static struct ceph_msg *alloc_msg(struct ceph_connection *con,
struct ceph_msg_header *hdr)
struct ceph_msg_header *hdr,
int *skip)
{
struct ceph_osd *osd = con->private;
struct ceph_osd_client *osdc = osd->o_osdc;
int type = le16_to_cpu(hdr->type);
int front = le32_to_cpu(hdr->front_len);
struct ceph_msg *m;
*skip = 0;
switch (type) {
case CEPH_MSG_OSD_OPREPLY:
return ceph_msgpool_get(&osdc->msgpool_op_reply, front);
m = ceph_msgpool_get(&osdc->msgpool_op_reply, front);
break;
default:
return NULL;
}
return ceph_alloc_msg(con, hdr);
if (!m)
*skip = 1;
return m;
}
/*
@@ -1390,6 +1400,5 @@ const static struct ceph_connection_operations osd_con_ops = {
.verify_authorizer_reply = verify_authorizer_reply,
.alloc_msg = alloc_msg,
.fault = osd_reset,
.alloc_middle = ceph_alloc_middle,
.prepare_pages = prepare_pages,
};