Messages in this thread | | | Subject | Re: [PATCH v4 0/8] block: prepare for multipage bvecs | From | Jens Axboe <> | Date | Thu, 14 Apr 2016 08:11:03 -0600 |
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On 04/14/2016 05:46 AM, Ming Lei wrote: > Hi, > > Interests[1] have been shown in multipage bvecs, so this patchset > try to prepare for the support and do two things: > > 1) the 1st 4 patches use bvec iterator to implement iterate_bvec(), > then we can drop the non-standard way for iterating bvec, which > can be thought as a good cleanup for lib/iov_iter.c > > 2) remove BIO_MAX_SECTORS & BIO_MAX_SIZE, and now there is only > one user for each. Once multipage bvecs is introduced, one bio > may hold lots of sectors, and we should always use sort of BIO_MAX_VECS > which should be introduced in future and is similiar with current > BIO_MAX_PAGES. > > xfstests(-a auto) have been run over ext4/xfs and no regression found > by this patchset.
We've had too many disasters in the block layer the last few series, I'm making the 4.7 round a nice and small one. I don't mind taking prep patches for the multipage bvecs, if they are simple and clean, but that's about the extent of it.
Just a heads up.
-- Jens Axboe
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