Hi Jason, On Fri, Jul 26, 2013 at 04:38:21PM -0400, Jason Rosenberg wrote: > Thanks for the info (most of it was, in fact, news to me). I'm an > application developer trying to debug a disk space problem, that's all. So > far, I've tracked it down to being an XFS issue. The speculative block reservations have been an issue for awhile. You are not the first person to take issue with it. > Regardless, is there a version history for XFS vis-a-via mainline Linux? You can find a full version history for XFS back to 2.6.12 or so here: http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xfs/xfs.git;a=summary If you're interested in going older than that look here: http://oss.sgi.com/cgi-bin/gitweb.cgi?p=archive/xfs-import.git;a=summary The function you'll most likely want to track is xfs_iomap_write_delay, which calls xfs_iomap_eof_want_preallocate, both of which are in fs/xfs/xfs_iomap.c. Recently Brian Foster added a scanner to remove the speculative block reservations on a timer which may give you some relief. See xfs_queue_eofblocks in fs/xfs/xfs_icache.c Regards, Ben _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
