[CIFS] Fix suspend/resume problem which causes EIO on subsequent access to
the mount.
Signed-off-by: Pavel Machek <pavel@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index e6f3d2f..faaf9eb 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -367,21 +367,21 @@
continue;
if (bigbuf == NULL) {
bigbuf = cifs_buf_get();
- if(bigbuf == NULL) {
- cERROR(1,("No memory for large SMB response"));
+ if (!bigbuf) {
+ cERROR(1, ("No memory for large SMB response"));
msleep(3000);
/* retry will check if exiting */
continue;
}
- } else if(isLargeBuf) {
- /* we are reusing a dirtry large buf, clear its start */
+ } else if (isLargeBuf) {
+ /* we are reusing a dirty large buf, clear its start */
memset(bigbuf, 0, sizeof (struct smb_hdr));
}
if (smallbuf == NULL) {
smallbuf = cifs_small_buf_get();
- if(smallbuf == NULL) {
- cERROR(1,("No memory for SMB response"));
+ if (!smallbuf) {
+ cERROR(1, ("No memory for SMB response"));
msleep(1000);
/* retry will check if exiting */
continue;
@@ -401,12 +401,12 @@
kernel_recvmsg(csocket, &smb_msg,
&iov, 1, 4, 0 /* BB see socket.h flags */);
- if(server->tcpStatus == CifsExiting) {
+ if (server->tcpStatus == CifsExiting) {
break;
} else if (server->tcpStatus == CifsNeedReconnect) {
- cFYI(1,("Reconnect after server stopped responding"));
+ cFYI(1, ("Reconnect after server stopped responding"));
cifs_reconnect(server);
- cFYI(1,("call to reconnect done"));
+ cFYI(1, ("call to reconnect done"));
csocket = server->ssocket;
continue;
} else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) {
@@ -415,15 +415,15 @@
tcpStatus CifsNeedReconnect if server hung */
continue;
} else if (length <= 0) {
- if(server->tcpStatus == CifsNew) {
- cFYI(1,("tcp session abend after SMBnegprot"));
+ if (server->tcpStatus == CifsNew) {
+ cFYI(1, ("tcp session abend after SMBnegprot"));
/* some servers kill the TCP session rather than
returning an SMB negprot error, in which
case reconnecting here is not going to help,
and so simply return error to mount */
break;
}
- if(length == -EINTR) {
+ if (!try_to_freeze() && (length == -EINTR)) {
cFYI(1,("cifsd thread killed"));
break;
}