On Mon, Jun 20, 2011 at 04:15:33PM -0400, Christoph Hellwig wrote:

This series removes it in favour of a simpler counter scheme, thus getting
rid of the rw_semaphore non-owner APIs as requests by Thomas, while at the
same time shrinking the size of struct inode by 160 bytes on 64-bit systems.

This should be 160 bits, aka 20 bytes of course, sorry.