From d4ffff1fa9695c5b5c0bf337e208d8833b88ff2d Mon Sep 17 00:00:00 2001 From: Pavel Shilovsky Date: Thu, 26 May 2011 06:02:00 +0000 Subject: CIFS: Add rwpidforward mount option Add rwpidforward mount option that switches on a mode when we forward pid of a process who opened a file to any read and write operation. This can prevent applications like WINE from failing on read or write operation on a previously locked file region from the same netfd from another process if we use mandatory brlock style. It is actual for WINE because during a run of WINE program two processes work on the same netfd - share the same file struct between several VFS fds: 1) WINE-server does open and lock; 2) WINE-application does read and write. Signed-off-by: Pavel Shilovsky Signed-off-by: Steve French --- fs/cifs/cifsglob.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/cifs/cifsglob.h') diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index ca0c3789206..310cddabd3f 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -200,6 +200,7 @@ struct smb_vol { bool fsc:1; /* enable fscache */ bool mfsymlinks:1; /* use Minshall+French Symlinks */ bool multiuser:1; + bool rwpidforward:1; /* pid forward for read/write operations */ unsigned int rsize; unsigned int wsize; bool sockopt_tcp_nodelay:1; -- cgit v1.2.3