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Commit 4d61cd6e authored by Jeff Layton's avatar Jeff Layton Committed by Steve French
Browse files

cifs: add a deprecation warning to CIFS_IOC_CHECKUMOUNT ioctl 



This was used by an ancient version of umount.cifs and in nowhere else
that I'm aware of. Let's add a warning now and dump it for 3.7.

Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
parent 5e500ed1

fs/cifs/ioctl.c

+8 −0
Original line number Diff line number Diff line
@@ -51,7 +51,15 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg) 
	cifs_sb = CIFS_SB(inode->i_sb);



	switch (command) {

		static bool warned = false;

		case CIFS_IOC_CHECKUMOUNT:

			if (!warned) {

				warned = true;

				cERROR(1, "the CIFS_IOC_CHECKMOUNT ioctl will "

					  "be deprecated in 3.7. Please "

					  "migrate away from the use of "

					  "umount.cifs");

			}

			cFYI(1, "User unmount attempted");

			if (cifs_sb->mnt_uid == current_uid())

				rc = 0;