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-rw-r--r--fs/cifs/cifs_unicode.c6
-rw-r--r--fs/cifs/cifs_unicode.h5
-rw-r--r--fs/cifs/cifsglob.h12
-rw-r--r--fs/cifs/cifssmb.c7
-rw-r--r--fs/cifs/connect.c37
-rw-r--r--fs/cifs/file.c6
-rw-r--r--fs/cifs/ioctl.c2
-rw-r--r--fs/cifs/smb1ops.c10
-rw-r--r--fs/cifs/smb2misc.c44
-rw-r--r--fs/cifs/smb2ops.c4
-rw-r--r--fs/cifs/smb2pdu.c23
-rw-r--r--fs/cifs/smb2proto.h7
-rw-r--r--fs/cifs/smb2transport.c58
-rw-r--r--fs/cifs/transport.c2
14 files changed, 195 insertions, 28 deletions
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index 02b071bf3732..a0b3e7d1be48 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -83,6 +83,9 @@ convert_sfm_char(const __u16 src_char, char *target)
case SFM_COLON:
*target = ':';
break;
+ case SFM_DOUBLEQUOTE:
+ *target = '"';
+ break;
case SFM_ASTERISK:
*target = '*';
break;
@@ -418,6 +421,9 @@ static __le16 convert_to_sfm_char(char src_char, bool end_of_string)
case ':':
dest_char = cpu_to_le16(SFM_COLON);
break;
+ case '"':
+ dest_char = cpu_to_le16(SFM_DOUBLEQUOTE);
+ break;
case '*':
dest_char = cpu_to_le16(SFM_ASTERISK);
break;
diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h
index 479bc0a941f3..07ade707fa60 100644
--- a/fs/cifs/cifs_unicode.h
+++ b/fs/cifs/cifs_unicode.h
@@ -57,6 +57,7 @@
* not conflict (although almost does) with the mapping above.
*/
+#define SFM_DOUBLEQUOTE ((__u16) 0xF020)
#define SFM_ASTERISK ((__u16) 0xF021)
#define SFM_QUESTION ((__u16) 0xF025)
#define SFM_COLON ((__u16) 0xF022)
@@ -64,8 +65,8 @@
#define SFM_LESSTHAN ((__u16) 0xF023)
#define SFM_PIPE ((__u16) 0xF027)
#define SFM_SLASH ((__u16) 0xF026)
-#define SFM_PERIOD ((__u16) 0xF028)
-#define SFM_SPACE ((__u16) 0xF029)
+#define SFM_SPACE ((__u16) 0xF028)
+#define SFM_PERIOD ((__u16) 0xF029)
/*
* Mapping mechanism to use when one of the seven reserved characters is
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index b76883606e4b..e2f6a79e9b01 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -227,6 +227,7 @@ struct smb_version_operations {
/* verify the message */
int (*check_message)(char *, unsigned int);
bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
+ int (*handle_cancelled_mid)(char *, struct TCP_Server_Info *);
void (*downgrade_oplock)(struct TCP_Server_Info *,
struct cifsInodeInfo *, bool);
/* process transaction2 response */
@@ -906,7 +907,6 @@ struct cifs_tcon {
bool use_persistent:1; /* use persistent instead of durable handles */
#ifdef CONFIG_CIFS_SMB2
bool print:1; /* set if connection to printer share */
- bool bad_network_name:1; /* set if ret status STATUS_BAD_NETWORK_NAME */
__le32 capabilities;
__u32 share_flags;
__u32 maximal_access;
@@ -1290,12 +1290,19 @@ struct mid_q_entry {
void *callback_data; /* general purpose pointer for callback */
void *resp_buf; /* pointer to received SMB header */
int mid_state; /* wish this were enum but can not pass to wait_event */
+ unsigned int mid_flags;
__le16 command; /* smb command code */
bool large_buf:1; /* if valid response, is pointer to large buf */
bool multiRsp:1; /* multiple trans2 responses for one request */
bool multiEnd:1; /* both received */
};
+struct close_cancelled_open {
+ struct cifs_fid fid;
+ struct cifs_tcon *tcon;
+ struct work_struct work;
+};
+
/* Make code in transport.c a little cleaner by moving
update of optional stats into function below */
#ifdef CONFIG_CIFS_STATS2
@@ -1427,6 +1434,9 @@ static inline void free_dfs_info_array(struct dfs_info3_param *param,
#define MID_RESPONSE_MALFORMED 0x10
#define MID_SHUTDOWN 0x20
+/* Flags */
+#define MID_WAIT_CANCELLED 1 /* Cancelled while waiting for response */
+
/* Types of response buffer returned from SendReceive2 */
#define CIFS_NO_BUFFER 0 /* Response buffer not returned */
#define CIFS_SMALL_BUFFER 1
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index b1104ed8f54c..b60150e5b5ce 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -717,6 +717,9 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
if (rc)
return rc;
+ if (server->capabilities & CAP_UNICODE)
+ smb->hdr.Flags2 |= SMBFLG2_UNICODE;
+
/* set up echo request */
smb->hdr.Tid = 0xffff;
smb->hdr.WordCount = 1;
@@ -1424,6 +1427,8 @@ cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
length = discard_remaining_data(server);
dequeue_mid(mid, rdata->result);
+ mid->resp_buf = server->smallbuf;
+ server->smallbuf = NULL;
return length;
}
@@ -1538,6 +1543,8 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
return cifs_readv_discard(server, mid);
dequeue_mid(mid, false);
+ mid->resp_buf = server->smallbuf;
+ server->smallbuf = NULL;
return length;
}
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 5d59f25521ce..53a827c6d8b1 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -412,6 +412,9 @@ cifs_reconnect(struct TCP_Server_Info *server)
}
} while (server->tcpStatus == CifsNeedReconnect);
+ if (server->tcpStatus == CifsNeedNegotiate)
+ mod_delayed_work(cifsiod_wq, &server->echo, 0);
+
return rc;
}
@@ -421,18 +424,27 @@ cifs_echo_request(struct work_struct *work)
int rc;
struct TCP_Server_Info *server = container_of(work,
struct TCP_Server_Info, echo.work);
+ unsigned long echo_interval;
/*
- * We cannot send an echo if it is disabled or until the
- * NEGOTIATE_PROTOCOL request is done, which is indicated by
- * server->ops->need_neg() == true. Also, no need to ping if
- * we got a response recently.
+ * If we need to renegotiate, set echo interval to zero to
+ * immediately call echo service where we can renegotiate.
+ */
+ if (server->tcpStatus == CifsNeedNegotiate)
+ echo_interval = 0;
+ else
+ echo_interval = SMB_ECHO_INTERVAL;
+
+ /*
+ * We cannot send an echo if it is disabled.
+ * Also, no need to ping if we got a response recently.
*/
if (server->tcpStatus == CifsNeedReconnect ||
- server->tcpStatus == CifsExiting || server->tcpStatus == CifsNew ||
+ server->tcpStatus == CifsExiting ||
+ server->tcpStatus == CifsNew ||
(server->ops->can_echo && !server->ops->can_echo(server)) ||
- time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ))
+ time_before(jiffies, server->lstrp + echo_interval - HZ))
goto requeue_echo;
rc = server->ops->echo ? server->ops->echo(server) : -ENOSYS;
@@ -924,10 +936,19 @@ cifs_demultiplex_thread(void *p)
server->lstrp = jiffies;
if (mid_entry != NULL) {
+ if ((mid_entry->mid_flags & MID_WAIT_CANCELLED) &&
+ mid_entry->mid_state == MID_RESPONSE_RECEIVED &&
+ server->ops->handle_cancelled_mid)
+ server->ops->handle_cancelled_mid(
+ mid_entry->resp_buf,
+ server);
+
if (!mid_entry->multiRsp || mid_entry->multiEnd)
mid_entry->callback(mid_entry);
- } else if (!server->ops->is_oplock_break ||
- !server->ops->is_oplock_break(buf, server)) {
+ } else if (server->ops->is_oplock_break &&
+ server->ops->is_oplock_break(buf, server)) {
+ cifs_dbg(FYI, "Received oplock break\n");
+ } else {
cifs_dbg(VFS, "No task to wake, unknown frame received! NumMids %d\n",
atomic_read(&midCount));
cifs_dump_mem("Received Data is: ", buf,
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 72f270d4bd17..a0c0a49b6620 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2545,7 +2545,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
wdata->credits = credits;
if (!wdata->cfile->invalidHandle ||
- !cifs_reopen_file(wdata->cfile, false))
+ !(rc = cifs_reopen_file(wdata->cfile, false)))
rc = server->ops->async_writev(wdata,
cifs_uncached_writedata_release);
if (rc) {
@@ -2958,7 +2958,7 @@ cifs_send_async_read(loff_t offset, size_t len, struct cifsFileInfo *open_file,
rdata->credits = credits;
if (!rdata->cfile->invalidHandle ||
- !cifs_reopen_file(rdata->cfile, true))
+ !(rc = cifs_reopen_file(rdata->cfile, true)))
rc = server->ops->async_readv(rdata);
error:
if (rc) {
@@ -3544,7 +3544,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
}
if (!rdata->cfile->invalidHandle ||
- !cifs_reopen_file(rdata->cfile, true))
+ !(rc = cifs_reopen_file(rdata->cfile, true)))
rc = server->ops->async_readv(rdata);
if (rc) {
add_credits_and_wake_if(server, rdata->credits, 0);
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 35cf990f87d3..a8f5b31636dc 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -272,6 +272,8 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
rc = -EOPNOTSUPP;
break;
case CIFS_IOC_GET_MNT_INFO:
+ if (pSMBFile == NULL)
+ break;
tcon = tlink_tcon(pSMBFile->tlink);
rc = smb_mnt_get_fsinfo(xid, tcon, (void __user *)arg);
break;
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index fc537c29044e..87b87e091e8e 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -1015,6 +1015,15 @@ cifs_dir_needs_close(struct cifsFileInfo *cfile)
return !cfile->srch_inf.endOfSearch && !cfile->invalidHandle;
}
+static bool
+cifs_can_echo(struct TCP_Server_Info *server)
+{
+ if (server->tcpStatus == CifsGood)
+ return true;
+
+ return false;
+}
+
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
@@ -1049,6 +1058,7 @@ struct smb_version_operations smb1_operations = {
.get_dfs_refer = CIFSGetDFSRefer,
.qfs_tcon = cifs_qfs_tcon,
.is_path_accessible = cifs_is_path_accessible,
+ .can_echo = cifs_can_echo,
.query_path_info = cifs_query_path_info,
.query_file_info = cifs_query_file_info,
.get_srv_inum = cifs_get_srv_inum,
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index e5bc85e49be7..76ccf20fbfb7 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -630,3 +630,47 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
cifs_dbg(FYI, "Can not process oplock break for non-existent connection\n");
return false;
}
+
+void
+smb2_cancelled_close_fid(struct work_struct *work)
+{
+ struct close_cancelled_open *cancelled = container_of(work,
+ struct close_cancelled_open, work);
+
+ cifs_dbg(VFS, "Close unmatched open\n");
+
+ SMB2_close(0, cancelled->tcon, cancelled->fid.persistent_fid,
+ cancelled->fid.volatile_fid);
+ cifs_put_tcon(cancelled->tcon);
+ kfree(cancelled);
+}
+
+int
+smb2_handle_cancelled_mid(char *buffer, struct TCP_Server_Info *server)
+{
+ struct smb2_hdr *hdr = (struct smb2_hdr *)buffer;
+ struct smb2_create_rsp *rsp = (struct smb2_create_rsp *)buffer;
+ struct cifs_tcon *tcon;
+ struct close_cancelled_open *cancelled;
+
+ if (hdr->Command != SMB2_CREATE || hdr->Status != STATUS_SUCCESS)
+ return 0;
+
+ cancelled = kzalloc(sizeof(*cancelled), GFP_KERNEL);
+ if (!cancelled)
+ return -ENOMEM;
+
+ tcon = smb2_find_smb_tcon(server, hdr->SessionId, hdr->TreeId);
+ if (!tcon) {
+ kfree(cancelled);
+ return -ENOENT;
+ }
+
+ cancelled->fid.persistent_fid = rsp->PersistentFileId;
+ cancelled->fid.volatile_fid = rsp->VolatileFileId;
+ cancelled->tcon = tcon;
+ INIT_WORK(&cancelled->work, smb2_cancelled_close_fid);
+ queue_work(cifsiod_wq, &cancelled->work);
+
+ return 0;
+}
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index be34b4860675..087918c4612a 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1511,6 +1511,7 @@ struct smb_version_operations smb20_operations = {
.clear_stats = smb2_clear_stats,
.print_stats = smb2_print_stats,
.is_oplock_break = smb2_is_valid_oplock_break,
+ .handle_cancelled_mid = smb2_handle_cancelled_mid,
.downgrade_oplock = smb2_downgrade_oplock,
.need_neg = smb2_need_neg,
.negotiate = smb2_negotiate,
@@ -1589,6 +1590,7 @@ struct smb_version_operations smb21_operations = {
.clear_stats = smb2_clear_stats,
.print_stats = smb2_print_stats,
.is_oplock_break = smb2_is_valid_oplock_break,
+ .handle_cancelled_mid = smb2_handle_cancelled_mid,
.downgrade_oplock = smb2_downgrade_oplock,
.need_neg = smb2_need_neg,
.negotiate = smb2_negotiate,
@@ -1670,6 +1672,7 @@ struct smb_version_operations smb30_operations = {
.print_stats = smb2_print_stats,
.dump_share_caps = smb2_dump_share_caps,
.is_oplock_break = smb2_is_valid_oplock_break,
+ .handle_cancelled_mid = smb2_handle_cancelled_mid,
.downgrade_oplock = smb2_downgrade_oplock,
.need_neg = smb2_need_neg,
.negotiate = smb2_negotiate,
@@ -1757,6 +1760,7 @@ struct smb_version_operations smb311_operations = {
.print_stats = smb2_print_stats,
.dump_share_caps = smb2_dump_share_caps,
.is_oplock_break = smb2_is_valid_oplock_break,
+ .handle_cancelled_mid = smb2_handle_cancelled_mid,
.downgrade_oplock = smb2_downgrade_oplock,
.need_neg = smb2_need_neg,
.negotiate = smb2_negotiate,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 2fa754c5fd62..f4afa3b1cc56 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -564,8 +564,12 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
}
if (rsplen != sizeof(struct validate_negotiate_info_rsp)) {
- cifs_dbg(VFS, "invalid size of protocol negotiate response\n");
- return -EIO;
+ cifs_dbg(VFS, "invalid protocol negotiate response size: %d\n",
+ rsplen);
+
+ /* relax check since Mac returns max bufsize allowed on ioctl */
+ if (rsplen > CIFSMaxBufSize)
+ return -EIO;
}
/* check validate negotiate info response matches what we got earlier */
@@ -932,9 +936,6 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
else
return -EIO;
- if (tcon && tcon->bad_network_name)
- return -ENOENT;
-
if ((tcon && tcon->seal) &&
((ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) == 0)) {
cifs_dbg(VFS, "encryption requested but no server support");
@@ -952,6 +953,10 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
return -EINVAL;
}
+ /* SMB2 TREE_CONNECT request must be called with TreeId == 0 */
+ if (tcon)
+ tcon->tid = 0;
+
rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) &req);
if (rc) {
kfree(unc_path);
@@ -1032,8 +1037,6 @@ tcon_exit:
tcon_error_exit:
if (rsp->hdr.Status == STATUS_BAD_NETWORK_NAME) {
cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
- if (tcon)
- tcon->bad_network_name = true;
}
goto tcon_exit;
}
@@ -1519,8 +1522,12 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
* than one credit. Windows typically sets this smaller, but for some
* ioctls it may be useful to allow server to send more. No point
* limiting what the server can send as long as fits in one credit
+ * Unfortunately - we can not handle more than CIFS_MAX_MSG_SIZE
+ * (by default, note that it can be overridden to make max larger)
+ * in responses (except for read responses which can be bigger.
+ * We may want to bump this limit up
*/
- req->MaxOutputResponse = cpu_to_le32(0xFF00); /* < 64K uses 1 credit */
+ req->MaxOutputResponse = cpu_to_le32(CIFSMaxBufSize);
if (is_fsctl)
req->Flags = cpu_to_le32(SMB2_0_IOCTL_IS_FSCTL);
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 0a406ae78129..adc5234486c3 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -47,6 +47,10 @@ extern struct mid_q_entry *smb2_setup_request(struct cifs_ses *ses,
struct smb_rqst *rqst);
extern struct mid_q_entry *smb2_setup_async_request(
struct TCP_Server_Info *server, struct smb_rqst *rqst);
+extern struct cifs_ses *smb2_find_smb_ses(struct TCP_Server_Info *server,
+ __u64 ses_id);
+extern struct cifs_tcon *smb2_find_smb_tcon(struct TCP_Server_Info *server,
+ __u64 ses_id, __u32 tid);
extern int smb2_calc_signature(struct smb_rqst *rqst,
struct TCP_Server_Info *server);
extern int smb3_calc_signature(struct smb_rqst *rqst,
@@ -157,6 +161,9 @@ extern int SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
const u64 persistent_fid, const u64 volatile_fid,
const __u8 oplock_level);
+extern int smb2_handle_cancelled_mid(char *buffer,
+ struct TCP_Server_Info *server);
+void smb2_cancelled_close_fid(struct work_struct *work);
extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_file_id, u64 volatile_file_id,
struct kstatfs *FSData);
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index d4c5b6f109a7..69e3b322bbfe 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -115,22 +115,68 @@ smb3_crypto_shash_allocate(struct TCP_Server_Info *server)
}
static struct cifs_ses *
-smb2_find_smb_ses(struct smb2_hdr *smb2hdr, struct TCP_Server_Info *server)
+smb2_find_smb_ses_unlocked(struct TCP_Server_Info *server, __u64 ses_id)
{
struct cifs_ses *ses;
- spin_lock(&cifs_tcp_ses_lock);
list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
- if (ses->Suid != smb2hdr->SessionId)
+ if (ses->Suid != ses_id)
continue;
- spin_unlock(&cifs_tcp_ses_lock);
return ses;
}
+
+ return NULL;
+}
+
+struct cifs_ses *
+smb2_find_smb_ses(struct TCP_Server_Info *server, __u64 ses_id)
+{
+ struct cifs_ses *ses;
+
+ spin_lock(&cifs_tcp_ses_lock);
+ ses = smb2_find_smb_ses_unlocked(server, ses_id);
spin_unlock(&cifs_tcp_ses_lock);
+ return ses;
+}
+
+static struct cifs_tcon *
+smb2_find_smb_sess_tcon_unlocked(struct cifs_ses *ses, __u32 tid)
+{
+ struct cifs_tcon *tcon;
+
+ list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
+ if (tcon->tid != tid)
+ continue;
+ ++tcon->tc_count;
+ return tcon;
+ }
+
return NULL;
}
+/*
+ * Obtain tcon corresponding to the tid in the given
+ * cifs_ses
+ */
+
+struct cifs_tcon *
+smb2_find_smb_tcon(struct TCP_Server_Info *server, __u64 ses_id, __u32 tid)
+{
+ struct cifs_ses *ses;
+ struct cifs_tcon *tcon;
+
+ spin_lock(&cifs_tcp_ses_lock);
+ ses = smb2_find_smb_ses_unlocked(server, ses_id);
+ if (!ses) {
+ spin_unlock(&cifs_tcp_ses_lock);
+ return NULL;
+ }
+ tcon = smb2_find_smb_sess_tcon_unlocked(ses, tid);
+ spin_unlock(&cifs_tcp_ses_lock);
+
+ return tcon;
+}
int
smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
@@ -143,7 +189,7 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
struct cifs_ses *ses;
- ses = smb2_find_smb_ses(smb2_pdu, server);
+ ses = smb2_find_smb_ses(server, smb2_pdu->SessionId);
if (!ses) {
cifs_dbg(VFS, "%s: Could not find session\n", __func__);
return 0;
@@ -314,7 +360,7 @@ smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
struct cifs_ses *ses;
- ses = smb2_find_smb_ses(smb2_pdu, server);
+ ses = smb2_find_smb_ses(server, smb2_pdu->SessionId);
if (!ses) {
cifs_dbg(VFS, "%s: Could not find session\n", __func__);
return 0;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 87abe8ed074c..54af10204e83 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -786,9 +786,11 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
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, buf, midQ);
spin_lock(&GlobalMid_Lock);
if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
+ midQ->mid_flags |= MID_WAIT_CANCELLED;
midQ->callback = DeleteMidQEntry;
spin_unlock(&GlobalMid_Lock);
cifs_small_buf_release(buf);
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-19 03:51:50 +0000