On Mon, Jul 18, 2016 at 12:13:38AM +0200, Adam Borowski wrote: > Instead of checking the mode of the file descriptor, let's check whether it > could have been opened rw. This allows fixing intermittent exec failures > when deduping a live system: anyone trying to exec a file currently being > deduped gets ETXTBSY. > > Issuing this ioctl on a ro file was already allowed for root/cap. > > Tested on btrfs and not-yet-merged xfs, as only them implement this ioctl. > > Signed-off-by: Adam Borowski <[email protected]>
Reviewed-by: Mark Fasheh <[email protected]> --Mark -- Mark Fasheh
