CIFS: Reconnect durable handles for SMB2
On reconnects, we need to reopen file and then obtain all byte-range
locks held by the client. SMB2 protocol provides feature to make
this process atomic by reconnecting to the same file handle
with all it's byte-range locks. This patch adds this capability
for SMB2 shares.
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 3e30f0a..36b0d37 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -488,7 +488,13 @@
struct create_durable {
struct create_context ccontext;
__u8 Name[8];
- __u8 Reserved[16];
+ union {
+ __u8 Reserved[16];
+ struct {
+ __u64 PersistentFileId;
+ __u64 VolatileFileId;
+ } Fid;
+ } Data;
} __packed;
/* this goes in the ioctl buffer when doing a copychunk request */
