Signed-off-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx>
---
fs/cifs/cifsproto.h | 4 ++
fs/cifs/transport.c | 151 ++++++++++++++++++++++++++++++----------------------
2 files changed, 90 insertions(+), 65 deletions(-)
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 762d513a5087..54c2fdb53a60 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -87,6 +87,10 @@ extern int cifs_call_async(struct TCP_Server_Info *server,
extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
struct smb_rqst *rqst, int *resp_buf_type,
const int flags, struct kvec *resp_iov);
+extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
+ const int flags, const int num_rqst,
+ struct smb_rqst *rqst, int *resp_buf_type,
+ struct kvec *resp_iov);
extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
struct smb_hdr * /* input */ ,
struct smb_hdr * /* out */ ,
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 7a598a98b6da..b959ac40976c 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -713,20 +713,21 @@ cifs_setup_request(struct cifs_ses *ses, struct smb_rqst *rqst)
}
int
-cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
- struct smb_rqst *rqst, int *resp_buf_type, const int flags,
- struct kvec *resp_iov)
+compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
+ const int flags, const int num_rqst, struct smb_rqst *rqst,
+ int *resp_buf_type, struct kvec *resp_iov)
{
- int rc = 0;
+ int i, rc = 0;
int timeout, optype;
- struct mid_q_entry *midQ;
+ struct mid_q_entry *midQ[MAX_COMPOUND];
unsigned int credits = 1;
char *buf;
timeout = flags & CIFS_TIMEOUT_MASK;
optype = flags & CIFS_OP_MASK;
- *resp_buf_type = CIFS_NO_BUFFER; /* no response buf yet */
+ for (i = 0; i < num_rqst; i++)
+ resp_buf_type[i] = CIFS_NO_BUFFER; /* no response buf yet */
if ((ses == NULL) || (ses->server == NULL)) {
cifs_dbg(VFS, "Null session\n");
@@ -753,99 +754,119 @@ cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
mutex_lock(&ses->server->srv_mutex);
- midQ = ses->server->ops->setup_request(ses, rqst);
- if (IS_ERR(midQ)) {
- mutex_unlock(&ses->server->srv_mutex);
- /* Update # of requests on wire to server */
- add_credits(ses->server, 1, optype);
- return PTR_ERR(midQ);
+ for (i = 0; i < num_rqst; i++) {
+ midQ[i] = ses->server->ops->setup_request(ses, &rqst[i]);
+ if (IS_ERR(midQ[i])) {
+ mutex_unlock(&ses->server->srv_mutex);
+ /* Update # of requests on wire to server */
+ add_credits(ses->server, 1, optype);
+ return PTR_ERR(midQ[i]);
+ }
+
+ midQ[i]->mid_state = MID_REQUEST_SUBMITTED;
}
- midQ->mid_state = MID_REQUEST_SUBMITTED;
cifs_in_send_inc(ses->server);
- rc = smb_send_rqst(ses->server, 1, rqst, flags);
+ rc = smb_send_rqst(ses->server, num_rqst, rqst, flags);
cifs_in_send_dec(ses->server);
- cifs_save_when_sent(midQ);
+
+ for (i = 0; i < num_rqst; i++)
+ cifs_save_when_sent(midQ[i]);
if (rc < 0)
ses->server->sequence_number -= 2;
+
mutex_unlock(&ses->server->srv_mutex);
- if (rc < 0)
- goto out;
+ for (i = 0; i < num_rqst; i++) {
+ if (rc < 0)
+ goto out;
#ifdef CONFIG_CIFS_SMB311
- if (ses->status == CifsNew)
- smb311_update_preauth_hash(ses, rqst->rq_iov,
- rqst->rq_nvec);
+ if (ses->status == CifsNew)
+ smb311_update_preauth_hash(ses, rqst[i].rq_iov,
+ rqst[i].rq_nvec);
#endif
- if (timeout == CIFS_ASYNC_OP)
- goto out;
+ if (timeout == CIFS_ASYNC_OP)
+ goto out;
- rc = wait_for_response(ses->server, midQ);
- if (rc != 0) {
- cifs_dbg(FYI, "Cancelling wait for mid %llu\n", midQ->mid);
- send_cancel(ses->server, rqst, midQ);
- spin_lock(&GlobalMid_Lock);
- if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
- midQ->mid_flags |= MID_WAIT_CANCELLED;
- midQ->callback = DeleteMidQEntry;
+ rc = wait_for_response(ses->server, midQ[i]);
+ if (rc != 0) {
+ cifs_dbg(FYI, "Cancelling wait for mid %llu\n",
+ midQ[i]->mid);
+ send_cancel(ses->server, &rqst[i], midQ[i]);
+ spin_lock(&GlobalMid_Lock);
+ if (midQ[i]->mid_state == MID_REQUEST_SUBMITTED) {
+ midQ[i]->mid_flags |= MID_WAIT_CANCELLED;
+ midQ[i]->callback = DeleteMidQEntry;
+ spin_unlock(&GlobalMid_Lock);
+ add_credits(ses->server, 1, optype);
+ return rc;
+ }
spin_unlock(&GlobalMid_Lock);
+ }
+
+ rc = cifs_sync_mid_result(midQ[i], ses->server);
+ if (rc != 0) {
add_credits(ses->server, 1, optype);
return rc;
}
- spin_unlock(&GlobalMid_Lock);
- }
-
- rc = cifs_sync_mid_result(midQ, ses->server);
- if (rc != 0) {
- add_credits(ses->server, 1, optype);
- return rc;
- }
- if (!midQ->resp_buf || midQ->mid_state != MID_RESPONSE_RECEIVED) {
- rc = -EIO;
- cifs_dbg(FYI, "Bad MID state?\n");
- goto out;
- }
+ if (!midQ[i]->resp_buf ||
+ midQ[i]->mid_state != MID_RESPONSE_RECEIVED) {
+ rc = -EIO;
+ cifs_dbg(FYI, "Bad MID state?\n");
+ goto out;
+ }
- buf = (char *)midQ->resp_buf;
- resp_iov->iov_base = buf;
- resp_iov->iov_len = midQ->resp_buf_size +
- ses->server->vals->header_preamble_size;
+ buf = (char *)midQ[i]->resp_buf;
+ resp_iov[i].iov_base = buf;
+ resp_iov[i].iov_len = midQ[i]->resp_buf_size +
+ ses->server->vals->header_preamble_size;
- if (midQ->large_buf)
- *resp_buf_type = CIFS_LARGE_BUFFER;
- else
- *resp_buf_type = CIFS_SMALL_BUFFER;
+ if (midQ[i]->large_buf)
+ resp_buf_type[i] = CIFS_LARGE_BUFFER;
+ else
+ resp_buf_type[i] = CIFS_SMALL_BUFFER;
#ifdef CONFIG_CIFS_SMB311
- if (ses->status == CifsNew) {
- struct kvec iov = {
- .iov_base = resp_iov->iov_base,
- .iov_len = resp_iov->iov_len
- };
- smb311_update_preauth_hash(ses, &iov, 1);
- }
+ if (ses->status == CifsNew) {
+ struct kvec iov = {
+ .iov_base = resp_iov[i].iov_base,
+ .iov_len = resp_iov[i].iov_len
+ };
+ smb311_update_preauth_hash(ses, &iov, 1);
+ }
#endif
- credits = ses->server->ops->get_credits(midQ);
+ credits = ses->server->ops->get_credits(midQ[i]);
- rc = ses->server->ops->check_receive(midQ, ses->server,
- flags & CIFS_LOG_ERROR);
+ rc = ses->server->ops->check_receive(midQ[i], ses->server,
+ flags & CIFS_LOG_ERROR);
- /* mark it so buf will not be freed by cifs_delete_mid */
- if ((flags & CIFS_NO_RESP) == 0)
- midQ->resp_buf = NULL;
+ /* mark it so buf will not be freed by cifs_delete_mid */
+ if ((flags & CIFS_NO_RESP) == 0)
+ midQ[i]->resp_buf = NULL;
+ }
out:
- cifs_delete_mid(midQ);
+ for (i = 0; i < num_rqst; i++)
+ cifs_delete_mid(midQ[i]);
add_credits(ses->server, credits, optype);
return rc;
}
int
+cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
+ struct smb_rqst *rqst, int *resp_buf_type, const int flags,
+ struct kvec *resp_iov)
+{
+ return compound_send_recv(xid, ses, flags, 1, rqst, resp_buf_type,
+ resp_iov);
+}
+
+int
SendReceive2(const unsigned int xid, struct cifs_ses *ses,
struct kvec *iov, int n_vec, int *resp_buf_type /* ret */,
const int flags, struct kvec *resp_iov)
--
2.13.3
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