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libceph: change ceph_con_in_msg_alloc() to take hdr 

ceph_con_in_msg_alloc() is protocol independent, but con->in_hdr (and
struct ceph_msg_header in general) is msgr1 specific.  While the struct
is deeply ingrained inside and outside the messenger, con->in_hdr field
can be separated.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov 2020-11-16 17:27:50 +01:00
parent 8ee8abf797
commit fc4c128e15
1 changed files with 6 additions and 5 deletions
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11
net/ceph/messenger.c
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@ -2386,7 +2386,8 @@ static int read_partial_msg_data(struct ceph_connection *con)
/*
* read (part of) a message.
*/
static int ceph_con_in_msg_alloc(struct ceph_connection *con, int *skip);
static int ceph_con_in_msg_alloc(struct ceph_connection *con,
struct ceph_msg_header *hdr, int *skip);
static int read_partial_message(struct ceph_connection *con)
{
@ -2450,7 +2451,7 @@ static int read_partial_message(struct ceph_connection *con)
dout("got hdr type %d front %d data %d\n", con->in_hdr.type,
front_len, data_len);
ret = ceph_con_in_msg_alloc(con, &skip);
ret = ceph_con_in_msg_alloc(con, &con->in_hdr, &skip);
if (ret < 0)
return ret;
@ -3455,9 +3456,9 @@ static int ceph_alloc_middle(struct ceph_connection *con, struct ceph_msg *msg)
* On error (ENOMEM, EAGAIN, ...),
* - con->in_msg == NULL
*/
static int ceph_con_in_msg_alloc(struct ceph_connection *con, int *skip)
static int ceph_con_in_msg_alloc(struct ceph_connection *con,
struct ceph_msg_header *hdr, int *skip)
{
struct ceph_msg_header *hdr = &con->in_hdr;
int middle_len = le32_to_cpu(hdr->middle_len);
struct ceph_msg *msg;
int ret = 0;
@ -3489,7 +3490,7 @@ static int ceph_con_in_msg_alloc(struct ceph_connection *con, int *skip)
con->error_msg = "error allocating memory for incoming message";
return -ENOMEM;
}
memcpy(&con->in_msg->hdr, &con->in_hdr, sizeof(con->in_hdr));
memcpy(&con->in_msg->hdr, hdr, sizeof(*hdr));
if (middle_len && !con->in_msg->middle) {
ret = ceph_alloc_middle(con, con->in_msg);