On Monday January 8, akpm@xxxxxxxx wrote: > On Mon, 8 Jan 2007 10:08:34 +0100 > Lars Ellenberg <Lars.Ellenberg@xxxxxxxxxx> wrote: > > > md raidX make_request functions strip off the BIO_RW_SYNC flag, > > thus introducing additional latency. > > > > fixing this in raid1 and raid10 seems to be straight forward enough. > > > > for our particular usage case in DRBD, passing this flag improved > > some initialization time from ~5 minutes to ~5 seconds. > > That sounds like a significant fix. > > This patch also applies to 2.6.19 and I have tagged it for a -stable > backport. Neil, are you OK with that? Yes, I'm OK with that, thanks. NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
