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@xxxxxxxxxx>
---
fs/cifs/ioctl.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 4221b5e..6d2667f 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -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;
--
1.7.7.6
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