On Tue, May 26, 2009 at 10:56:48AM +0200, Jens Axboe wrote: > > Hmm, so each BDI flusher thread is going to sync all the superblocks? > > Isn't there a better way? I suppose we *should* be able to somehow go > > from a BDI to a superblock (or maybe a list of those) so that we can write > > per-fs metadata not bound to inodes. > > I just moved the sync_supers() to the bdi_forker_task(). That makes it > global at the same interval of wakeups, instead of doing in the bdi > threads. It would be nice to sync locally instead, but that's something > that can wait for later (if ever). For now it might be easier to just have a separate thread for calling sync_supers instead of interwinding it with the data writeback. Btw, XFS currently has a per-device thread for that, to avoid any global contention. -- 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
