[CIFS] Do not time out posix brl requests when using new posix setfileinfo

request and do not time out slow requests to a server that is still responding
well to other threads

Suggested by jra of Samba team

Signed-off-by: Steve French <sfrench@us.ibm.com>
(cherry picked from 89b57148115479eef074b8d3f86c4c86c96ac969 commit)

1 files changed, 8 insertions, 3 deletions

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 19678c575dfc..c03c42ee9eb9 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1484,6 +1484,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
         char *data_offset;
         struct cifs_posix_lock *parm_data;
         int rc = 0;
+        int timeout = 0;
         int bytes_returned = 0;
         __u16 params, param_offset, offset, byte_count, count;
 
@@ -1503,7 +1504,6 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
         pSMB->MaxSetupCount = 0;
         pSMB->Reserved = 0;
         pSMB->Flags = 0;
-        pSMB->Timeout = 0;
         pSMB->Reserved2 = 0;
         param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
         offset = param_offset + params;
@@ -1529,8 +1529,13 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
                         (((char *) &pSMB->hdr.Protocol) + offset);
 
         parm_data->lock_type = cpu_to_le16(lock_type);
-        if(waitFlag)
+        if(waitFlag) {
+                timeout = 3;  /* blocking operation, no timeout */
                 parm_data->lock_flags = cpu_to_le16(1);
+                pSMB->Timeout = cpu_to_le32(-1);
+        } else
+                pSMB->Timeout = 0;
+
         parm_data->pid = cpu_to_le32(current->tgid);
         parm_data->start = cpu_to_le64(pLockData->fl_start);
         parm_data->length = cpu_to_le64(len);  /* normalize negative numbers */
@@ -1542,7 +1547,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
         pSMB->hdr.smb_buf_length += byte_count;
         pSMB->ByteCount = cpu_to_le16(byte_count);
         rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
-                        (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+                        (struct smb_hdr *) pSMBr, &bytes_returned, timeout);
         if (rc) {
                 cFYI(1, ("Send error in Posix Lock = %d", rc));
         } else if (get_flag) {