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: Jeff Layton <jlayton@redhat.com>
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@ -51,7 +51,15 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
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cifs_sb = CIFS_SB(inode->i_sb);
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switch (command) {
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static bool warned = false;
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case CIFS_IOC_CHECKUMOUNT:
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if (!warned) {
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warned = true;
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cERROR(1, "the CIFS_IOC_CHECKMOUNT ioctl will "
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"be deprecated in 3.7. Please "
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"migrate away from the use of "
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"umount.cifs");
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}
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cFYI(1, "User unmount attempted");
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if (cifs_sb->mnt_uid == current_uid())
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rc = 0;
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