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path: root/fs/cifs/transport.c
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Diffstat (limited to 'fs/cifs/transport.c')
-rw-r--r--fs/cifs/transport.c70
1 files changed, 39 insertions, 31 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 3e6ffe355384..904702db2526 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -250,13 +250,13 @@ smb_send(struct TCP_Server_Info *server, struct smb_hdr *smb_buffer,
}
static int
-wait_for_free_credits(struct TCP_Server_Info *server, const int optype,
+wait_for_free_credits(struct TCP_Server_Info *server, const int timeout,
int *credits)
{
int rc;
spin_lock(&server->req_lock);
- if (optype == CIFS_ASYNC_OP) {
+ if (timeout == CIFS_ASYNC_OP) {
/* oplock breaks must not be held up */
server->in_flight++;
*credits -= 1;
@@ -286,7 +286,7 @@ wait_for_free_credits(struct TCP_Server_Info *server, const int optype,
*/
/* update # of requests on the wire to server */
- if (optype != CIFS_BLOCKING_OP) {
+ if (timeout != CIFS_BLOCKING_OP) {
*credits -= 1;
server->in_flight++;
}
@@ -298,10 +298,11 @@ wait_for_free_credits(struct TCP_Server_Info *server, const int optype,
}
static int
-wait_for_free_request(struct TCP_Server_Info *server, const int optype)
+wait_for_free_request(struct TCP_Server_Info *server, const int timeout,
+ const int optype)
{
- return wait_for_free_credits(server, optype,
- server->ops->get_credits_field(server));
+ return wait_for_free_credits(server, timeout,
+ server->ops->get_credits_field(server, optype));
}
static int allocate_mid(struct cifs_ses *ses, struct smb_hdr *in_buf,
@@ -378,12 +379,15 @@ cifs_setup_async_request(struct TCP_Server_Info *server, struct kvec *iov,
int
cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
unsigned int nvec, mid_receive_t *receive,
- mid_callback_t *callback, void *cbdata, bool ignore_pend)
+ mid_callback_t *callback, void *cbdata, const int flags)
{
- int rc;
+ int rc, timeout, optype;
struct mid_q_entry *mid;
- rc = wait_for_free_request(server, ignore_pend ? CIFS_ASYNC_OP : 0);
+ timeout = flags & CIFS_TIMEOUT_MASK;
+ optype = flags & CIFS_OP_MASK;
+
+ rc = wait_for_free_request(server, timeout, optype);
if (rc)
return rc;
@@ -391,7 +395,7 @@ cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
rc = cifs_setup_async_request(server, iov, nvec, &mid);
if (rc) {
mutex_unlock(&server->srv_mutex);
- add_credits(server, 1);
+ add_credits(server, 1, optype);
wake_up(&server->request_q);
return rc;
}
@@ -417,7 +421,7 @@ cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
return 0;
delete_mid(mid);
- add_credits(server, 1);
+ add_credits(server, 1, optype);
wake_up(&server->request_q);
return rc;
}
@@ -533,17 +537,19 @@ cifs_setup_request(struct cifs_ses *ses, struct kvec *iov,
int
SendReceive2(const unsigned int xid, struct cifs_ses *ses,
- struct kvec *iov, int n_vec, int *pRespBufType /* ret */,
+ struct kvec *iov, int n_vec, int *resp_buf_type /* ret */,
const int flags)
{
int rc = 0;
- int long_op;
+ int timeout, optype;
struct mid_q_entry *midQ;
char *buf = iov[0].iov_base;
+ unsigned int credits = 1;
- long_op = flags & CIFS_TIMEOUT_MASK;
+ timeout = flags & CIFS_TIMEOUT_MASK;
+ optype = flags & CIFS_OP_MASK;
- *pRespBufType = CIFS_NO_BUFFER; /* no response buf yet */
+ *resp_buf_type = CIFS_NO_BUFFER; /* no response buf yet */
if ((ses == NULL) || (ses->server == NULL)) {
cifs_small_buf_release(buf);
@@ -562,7 +568,7 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
* use ses->maxReq.
*/
- rc = wait_for_free_request(ses->server, long_op);
+ rc = wait_for_free_request(ses->server, timeout, optype);
if (rc) {
cifs_small_buf_release(buf);
return rc;
@@ -581,7 +587,7 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
mutex_unlock(&ses->server->srv_mutex);
cifs_small_buf_release(buf);
/* Update # of requests on wire to server */
- add_credits(ses->server, 1);
+ add_credits(ses->server, 1, optype);
return rc;
}
@@ -598,7 +604,7 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
goto out;
}
- if (long_op == CIFS_ASYNC_OP) {
+ if (timeout == CIFS_ASYNC_OP) {
cifs_small_buf_release(buf);
goto out;
}
@@ -611,7 +617,7 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
midQ->callback = DeleteMidQEntry;
spin_unlock(&GlobalMid_Lock);
cifs_small_buf_release(buf);
- add_credits(ses->server, 1);
+ add_credits(ses->server, 1, optype);
return rc;
}
spin_unlock(&GlobalMid_Lock);
@@ -621,7 +627,7 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
rc = cifs_sync_mid_result(midQ, ses->server);
if (rc != 0) {
- add_credits(ses->server, 1);
+ add_credits(ses->server, 1, optype);
return rc;
}
@@ -635,9 +641,11 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
iov[0].iov_base = buf;
iov[0].iov_len = get_rfc1002_length(buf) + 4;
if (midQ->large_buf)
- *pRespBufType = CIFS_LARGE_BUFFER;
+ *resp_buf_type = CIFS_LARGE_BUFFER;
else
- *pRespBufType = CIFS_SMALL_BUFFER;
+ *resp_buf_type = CIFS_SMALL_BUFFER;
+
+ credits = ses->server->ops->get_credits(midQ);
rc = ses->server->ops->check_receive(midQ, ses->server,
flags & CIFS_LOG_ERROR);
@@ -647,7 +655,7 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
midQ->resp_buf = NULL;
out:
delete_mid(midQ);
- add_credits(ses->server, 1);
+ add_credits(ses->server, credits, optype);
return rc;
}
@@ -655,7 +663,7 @@ out:
int
SendReceive(const unsigned int xid, struct cifs_ses *ses,
struct smb_hdr *in_buf, struct smb_hdr *out_buf,
- int *pbytes_returned, const int long_op)
+ int *pbytes_returned, const int timeout)
{
int rc = 0;
struct mid_q_entry *midQ;
@@ -683,7 +691,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
return -EIO;
}
- rc = wait_for_free_request(ses->server, long_op);
+ rc = wait_for_free_request(ses->server, timeout, 0);
if (rc)
return rc;
@@ -697,7 +705,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
if (rc) {
mutex_unlock(&ses->server->srv_mutex);
/* Update # of requests on wire to server */
- add_credits(ses->server, 1);
+ add_credits(ses->server, 1, 0);
return rc;
}
@@ -718,7 +726,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
if (rc < 0)
goto out;
- if (long_op == CIFS_ASYNC_OP)
+ if (timeout == CIFS_ASYNC_OP)
goto out;
rc = wait_for_response(ses->server, midQ);
@@ -729,7 +737,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
/* no longer considered to be "in-flight" */
midQ->callback = DeleteMidQEntry;
spin_unlock(&GlobalMid_Lock);
- add_credits(ses->server, 1);
+ add_credits(ses->server, 1, 0);
return rc;
}
spin_unlock(&GlobalMid_Lock);
@@ -737,7 +745,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
rc = cifs_sync_mid_result(midQ, ses->server);
if (rc != 0) {
- add_credits(ses->server, 1);
+ add_credits(ses->server, 1, 0);
return rc;
}
@@ -753,7 +761,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
rc = cifs_check_receive(midQ, ses->server, 0);
out:
delete_mid(midQ);
- add_credits(ses->server, 1);
+ add_credits(ses->server, 1, 0);
return rc;
}
@@ -818,7 +826,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
return -EIO;
}
- rc = wait_for_free_request(ses->server, CIFS_BLOCKING_OP);
+ rc = wait_for_free_request(ses->server, CIFS_BLOCKING_OP, 0);
if (rc)
return rc;
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-26 19:15:44 +0000