On Thu, Oct 24, 2013 at 10:46:00AM +0100, Jens Axboe wrote: > On Thu, Oct 24 2013, Jens Axboe wrote: > > We don't need truncate protection for block devices, so add a flag > > bypassing this cache line dirtying twice for every IO. This easily > > contributes to 5-10% of the CPU time on high IOPS O_DIRECT testing. > > There's a merge error in this patch, please find the correct one below.
Btw, I think this patch should not go in with this series but rather via the VFS tree as it's not related to the blk-mq infrastructure at all. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
