On Thu, Mar 30, 2017 at 12:57:08AM +0100, David Howells wrote: > Should XFS_IOC_FSGEOMETRY work on fds that are opened O_PATH on an XFS > filesystem? Or should xfs_io not call that ioctl on O_PATH fds? Given that read/write don't work under O_PATH, I wouldn't expect ioctls to work either. I tried to write a two line program to call FSGEOMETRY to see what actually happens but got so bogged down in trying to figure out what magic incantation of C headers one needs to pull in the appropriate structure typedefs for an ioctl I wasn't even trying to call that I gave up. Seriously, what the f*ck do you have to #include just to be able to use O_PATH? --D > > David > -- > To unsubscribe from this list: send the line "unsubscribe linux-xfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html
