[PATCH 9/9] smb/client: make SMB2 change notify interruptible

From: ChenXiaoSong <[email protected]>

SMB2 change notify can block indefinitely while waiting for directory
changes. Mark the request as interruptible so userspace can stop the wait
with a normal signal.

The interrupted wait now uses the SMB2 cancel callback added earlier in
the series to notify the server about the abandoned request.

Signed-off-by: ChenXiaoSong <[email protected]>
---
 fs/smb/client/smb2pdu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index d058584b8f05..56caf8cbdb0b 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -4127,6 +4127,7 @@ SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon,
 
 	if (smb3_encryption_required(tcon))
 		flags |= CIFS_TRANSFORM_REQ;
+	flags |= CIFS_INTERRUPTIBLE_WAIT;
 
 	memset(&rqst, 0, sizeof(struct smb_rqst));
 	memset(&iov, 0, sizeof(iov));
-- 
2.54.0