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CIFS: Make send_cancel take rqst as argument 

Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
This commit is contained in:
Pavel Shilovsky 2016-11-23 15:08:14 -08:00 коммит произвёл Steve French
Родитель da502f7df0
Коммит fb2036d817
3 изменённых файлов: 22 добавлений и 17 удалений
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2
fs/cifs/cifsglob.h
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@ -208,7 +208,7 @@ struct cifsInodeInfo;
struct cifs_open_parms;
struct smb_version_operations {
int (*send_cancel)(struct TCP_Server_Info *, void *,
int (*send_cancel)(struct TCP_Server_Info *, struct smb_rqst *,
struct mid_q_entry *);
bool (*compare_fids)(struct cifsFileInfo *, struct cifsFileInfo *);
/* setup request: allocate mid, sign message */

4
fs/cifs/smb1ops.c
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@ -36,11 +36,11 @@
* SMB_COM_NT_CANCEL request and then sends it.
*/
static int
send_nt_cancel(struct TCP_Server_Info *server, void *buf,
send_nt_cancel(struct TCP_Server_Info *server, struct smb_rqst *rqst,
struct mid_q_entry *mid)
{
int rc = 0;
struct smb_hdr *in_buf = (struct smb_hdr *)buf;
struct smb_hdr *in_buf = (struct smb_hdr *)rqst->rq_iov[0].iov_base;
/* -4 for RFC1001 length and +2 for BCC field */
in_buf->smb_buf_length = cpu_to_be32(sizeof(struct smb_hdr) - 4 + 2);

33
fs/cifs/transport.c
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@ -596,10 +596,11 @@ cifs_sync_mid_result(struct mid_q_entry *mid, struct TCP_Server_Info *server)
}
static inline int
send_cancel(struct TCP_Server_Info *server, void *buf, struct mid_q_entry *mid)
send_cancel(struct TCP_Server_Info *server, struct smb_rqst *rqst,
struct mid_q_entry *mid)
{
return server->ops->send_cancel ?
server->ops->send_cancel(server, buf, mid) : 0;
server->ops->send_cancel(server, rqst, mid) : 0;
}
int
@ -719,7 +720,7 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
rc = wait_for_response(ses->server, midQ);
if (rc != 0) {
send_cancel(ses->server, buf, midQ);
send_cancel(ses->server, &rqst, midQ);
spin_lock(&GlobalMid_Lock);
if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
midQ->callback = DeleteMidQEntry;
@ -772,6 +773,9 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
{
int rc = 0;
struct mid_q_entry *midQ;
unsigned int len = be32_to_cpu(in_buf->smb_buf_length);
struct kvec iov = { .iov_base = in_buf, .iov_len = len };
struct smb_rqst rqst = { .rq_iov = &iov, .rq_nvec = 1 };
if (ses == NULL) {
cifs_dbg(VFS, "Null smb session\n");
@ -789,10 +793,9 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
to the same server. We may make this configurable later or
use ses->maxReq */
if (be32_to_cpu(in_buf->smb_buf_length) > CIFSMaxBufSize +
MAX_CIFS_HDR_SIZE - 4) {
if (len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) {
cifs_dbg(VFS, "Illegal length, greater than maximum frame, %d\n",
be32_to_cpu(in_buf->smb_buf_length));
len);
return -EIO;
}
@ -823,7 +826,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
midQ->mid_state = MID_REQUEST_SUBMITTED;
cifs_in_send_inc(ses->server);
rc = smb_send(ses->server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
rc = smb_send(ses->server, in_buf, len);
cifs_in_send_dec(ses->server);
cifs_save_when_sent(midQ);
@ -840,7 +843,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
rc = wait_for_response(ses->server, midQ);
if (rc != 0) {
send_cancel(ses->server, in_buf, midQ);
send_cancel(ses->server, &rqst, midQ);
spin_lock(&GlobalMid_Lock);
if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
/* no longer considered to be "in-flight" */
@ -909,6 +912,9 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
int rstart = 0;
struct mid_q_entry *midQ;
struct cifs_ses *ses;
unsigned int len = be32_to_cpu(in_buf->smb_buf_length);
struct kvec iov = { .iov_base = in_buf, .iov_len = len };
struct smb_rqst rqst = { .rq_iov = &iov, .rq_nvec = 1 };
if (tcon == NULL || tcon->ses == NULL) {
cifs_dbg(VFS, "Null smb session\n");
@ -928,10 +934,9 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
to the same server. We may make this configurable later or
use ses->maxReq */
if (be32_to_cpu(in_buf->smb_buf_length) > CIFSMaxBufSize +
MAX_CIFS_HDR_SIZE - 4) {
if (len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) {
cifs_dbg(VFS, "Illegal length, greater than maximum frame, %d\n",
be32_to_cpu(in_buf->smb_buf_length));
len);
return -EIO;
}
@ -960,7 +965,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
midQ->mid_state = MID_REQUEST_SUBMITTED;
cifs_in_send_inc(ses->server);
rc = smb_send(ses->server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
rc = smb_send(ses->server, in_buf, len);
cifs_in_send_dec(ses->server);
cifs_save_when_sent(midQ);
@ -989,7 +994,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
if (in_buf->Command == SMB_COM_TRANSACTION2) {
/* POSIX lock. We send a NT_CANCEL SMB to cause the
blocking lock to return. */
rc = send_cancel(ses->server, in_buf, midQ);
rc = send_cancel(ses->server, &rqst, midQ);
if (rc) {
cifs_delete_mid(midQ);
return rc;
@ -1010,7 +1015,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
rc = wait_for_response(ses->server, midQ);
if (rc) {
send_cancel(ses->server, in_buf, midQ);
send_cancel(ses->server, &rqst, midQ);
spin_lock(&GlobalMid_Lock);
if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
/* no longer considered to be "in-flight" */