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cifs: add resp_buf_size to the mid_q_entry structure

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and get rid of some more calls to get_rfc1002_length()

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
This commit is contained in:
Ronnie Sahlberg 2018-04-09 18:06:28 +10:00 committed by Steve French
parent 0d4b46ba7d
commit e19b2bc079
4 changed files with 4 additions and 2 deletions
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1
fs/cifs/cifsglob.h
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@ -1376,6 +1376,7 @@ struct mid_q_entry {
mid_handle_t *handle; /* call handle mid callback */
void *callback_data; /* general purpose pointer for callback */
void *resp_buf; /* pointer to received SMB header */
unsigned int resp_buf_size;
int mid_state; /* wish this were enum but can not pass to wait_event */
unsigned int mid_flags;
__le16 command; /* smb command code */

1
fs/cifs/connect.c
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@ -928,6 +928,7 @@ cifs_demultiplex_thread(void *p)
server->lstrp = jiffies;
if (mid_entry != NULL) {
mid_entry->resp_buf_size = server->pdu_size;
if ((mid_entry->mid_flags & MID_WAIT_CANCELLED) &&
mid_entry->mid_state == MID_RESPONSE_RECEIVED &&
server->ops->handle_cancelled_mid)

2
fs/cifs/smb2transport.c
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@ -604,7 +604,7 @@ int
smb2_check_receive(struct mid_q_entry *mid, struct TCP_Server_Info *server,
bool log_error)
{
unsigned int len = get_rfc1002_length(mid->resp_buf);
unsigned int len = mid->resp_buf_size;
struct kvec iov[2];
struct smb_rqst rqst = { .rq_iov = iov,
.rq_nvec = 2 };

2
fs/cifs/transport.c
View File

@ -790,7 +790,7 @@ cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
buf = (char *)midQ->resp_buf;
resp_iov->iov_base = buf;
resp_iov->iov_len = get_rfc1002_length(buf) +
resp_iov->iov_len = midQ->resp_buf_size +
ses->server->vals->header_preamble_size;
if (midQ->large_buf)
*resp_buf_type = CIFS_LARGE_BUFFER;