On Thu, Aug 01, 2013 at 07:57:22PM +0000, Dilger, Andreas wrote: > It provides significant performance improvement for network IO on Lustre. > It bypasses DLM locking in Lustre and the VFS layer on the client, copying > in the loop driver, and page-by-page IO submission in the normal IO path. Part of being upstream is improving existing drivers instead of copy and pasting them. Please take a Look at Shaggys in-kernel direct I/O and loop improvements and submit any incremental improvements ontop of that one. _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
