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authorRonnie Sahlberg <lsahlber@redhat.com>2019-03-08 12:58:18 +1000
committerSteve French <stfrench@microsoft.com>2019-03-14 19:32:35 -0500
commit480b1cb9dad894f40523a29964746cfc6ebd714f (patch)
tree462c63f6962f6f5fb92190b8500303f6c6f954d3
parentf261c4e529dac5608a604d3dd3ae1cd2adf23c89 (diff)
downloadlinux-480b1cb9dad894f40523a29964746cfc6ebd714f.tar.bz2
cifs: change wait_for_free_request() to take flags as argument
and compute timeout and optyp from it. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
-rw-r--r--fs/cifs/transport.c33
1 files changed, 17 insertions, 16 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 7ce8a585abd6..ed104c0550e8 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -538,15 +538,20 @@ wait_for_free_credits(struct TCP_Server_Info *server, const int timeout,
}
static int
-wait_for_free_request(struct TCP_Server_Info *server, const int timeout,
- const int optype, unsigned int *instance)
+wait_for_free_request(struct TCP_Server_Info *server, const int flags,
+ unsigned int *instance)
{
int *val;
+ int timeout, optype;
+
+ timeout = flags & CIFS_TIMEOUT_MASK;
+ optype = flags & CIFS_OP_MASK;
val = server->ops->get_credits_field(server, optype);
/* Since an echo is already inflight, no need to wait to send another */
if (*val <= 0 && optype == CIFS_ECHO_OP)
return -EAGAIN;
+
return wait_for_free_credits(server, timeout, val, instance);
}
@@ -646,16 +651,16 @@ cifs_call_async(struct TCP_Server_Info *server, struct smb_rqst *rqst,
mid_handle_t *handle, void *cbdata, const int flags,
const struct cifs_credits *exist_credits)
{
- int rc, timeout, optype;
+ int rc;
struct mid_q_entry *mid;
struct cifs_credits credits = { .value = 0, .instance = 0 };
unsigned int instance;
+ int optype;
- timeout = flags & CIFS_TIMEOUT_MASK;
optype = flags & CIFS_OP_MASK;
if ((flags & CIFS_HAS_CREDITS) == 0) {
- rc = wait_for_free_request(server, timeout, optype, &instance);
+ rc = wait_for_free_request(server, flags, &instance);
if (rc)
return rc;
credits.value = 1;
@@ -871,8 +876,7 @@ 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 i, j, rc = 0;
- int timeout, optype;
+ int i, j, optype, rc = 0;
struct mid_q_entry *midQ[MAX_COMPOUND];
bool cancelled_mid[MAX_COMPOUND] = {false};
struct cifs_credits credits[MAX_COMPOUND] = {
@@ -882,7 +886,6 @@ compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
unsigned int first_instance = 0;
char *buf;
- timeout = flags & CIFS_TIMEOUT_MASK;
optype = flags & CIFS_OP_MASK;
for (i = 0; i < num_rqst; i++)
@@ -933,8 +936,7 @@ compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
* Ensure we obtain 1 credit per request in the compound chain.
*/
for (i = 0; i < num_rqst; i++) {
- rc = wait_for_free_request(ses->server, timeout, optype,
- &instance);
+ rc = wait_for_free_request(ses->server, flags, &instance);
if (rc == 0) {
credits[i].value = 1;
@@ -1057,7 +1059,7 @@ setup_rqsts:
smb311_update_preauth_hash(ses, rqst[0].rq_iov,
rqst[0].rq_nvec);
- if (timeout == CIFS_ASYNC_OP)
+ if ((flags & CIFS_TIMEOUT_MASK) == CIFS_ASYNC_OP)
goto out;
for (i = 0; i < num_rqst; i++) {
@@ -1194,7 +1196,7 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
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 timeout)
+ int *pbytes_returned, const int flags)
{
int rc = 0;
struct mid_q_entry *midQ;
@@ -1225,7 +1227,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
return -EIO;
}
- rc = wait_for_free_request(ses->server, timeout, 0, &credits.instance);
+ rc = wait_for_free_request(ses->server, flags, &credits.instance);
if (rc)
return rc;
@@ -1264,7 +1266,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
if (rc < 0)
goto out;
- if (timeout == CIFS_ASYNC_OP)
+ if ((flags & CIFS_TIMEOUT_MASK) == CIFS_ASYNC_OP)
goto out;
rc = wait_for_response(ses->server, midQ);
@@ -1367,8 +1369,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
return -EIO;
}
- rc = wait_for_free_request(ses->server, CIFS_BLOCKING_OP, 0,
- &instance);
+ rc = wait_for_free_request(ses->server, CIFS_BLOCKING_OP, &instance);
if (rc)
return rc;