On Thu, Apr 13, 2017 at 10:35:17PM +0200, Andreas Mohr wrote: > On Thu, Apr 13, 2017 at 10:45:10PM +0800, Ming Lei wrote: > > + /* > > + * don't merge if the 1st bio starts with non-zero > > + * offset, otherwise it is quite difficult to respect > > + * sg gap limit. We work hard to merge huge of small > > + * bios in case of mkfs. > > "huge of small bios in case" - -ENOPARSE. > > "huge numbers of"? > "huge or small"? OK, it should be tons of or sort of description. As you can see in the trace, there are 2560 bios merged in one request. Thanks, Ming