[CIFS] Add posix (advisory) byte range locking support to cifs client

Samba (version 3) server support for this is also currently being
done.  This client code is in an experimental path (requires enabling
/proc/fs/cifs/Experimental) while it is being tested.

Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 79e7f5a54323..b866e3a7ba67 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -265,7 +265,10 @@ extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
                         const __u64 offset, const __u32 numUnlock,
                         const __u32 numLock, const __u8 lockType,
                         const int waitFlag);
-
+extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
+                        const __u16 smb_file_id, const int get_flag,
+                        const __u64 len, const __u64 offset, 
+                        const __u16 lock_type, const int waitFlag);
 extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon);
 extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses);