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cifs: add a deprecation warning to CIFS_IOC_CHECKUMOUNT ioctl

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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: Jeff Layton <jlayton@redhat.com>
This commit is contained in:
Jeff Layton 2012-05-16 07:13:17 -04:00 committed by Steve French
parent 5e500ed125
commit 4d61cd6ec7
1 changed files with 8 additions and 0 deletions
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8
fs/cifs/ioctl.c
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@ -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;