On Fri, Apr 03, 2009 at 02:32:58AM +1100, Nick Piggin wrote: > Hmm, I guess not all filesystems define write_begin/write_end. But if you > only need to use ones that do define them? No. write_begin/write_end are simply callbacks for the write helpers, and locking for them is entirely filesystem-defined. E.g. xfs and the cluster filesystems require additional locks taken first, and some network filesystems require inode revalidations first. They really should be taken out of the address_space_operations and passed as callbacks to generic_file_aio_write & co. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
