[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH 2/6] block: don't merge adjacent bvecs to one segment in bio blk_queue_split



On Sat, Mar 09, 2019 at 09:37:33AM +0800, Ming Lei wrote:
> For normal filesystem IO, each page is added via blk_add_page(),
> in which bvec(page) merge has been handled already, and basically
> not possible to merge two adjacent bvecs in one bio.
> 
> So not try to merge two adjacent bvecs in blk_queue_split(), also add
> check if one page is mergeable to current bvec in bio_add_page() for
> avoiding to break XEN.

Isn't this two entirely different things?  Both look good to me,
but I don't understand why this is one patch vs two.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.