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| From | Jens Axboe <axboe@kernel.dk> |
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v6 0/8] block: prepare for multipage bvecs |
| Date | Thu, 09 Jun 2016 18:10:01 +0200 |
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| X-Original-Cc | linux-block@vger.kernel.org, Christoph Hellwig <hch@infradead.org>, Al Viro <viro@zeniv.linux.org.uk>, "open list:DRBD DRIVER" <drbd-dev@lists.linbit.com>, Jan Kara <jack@suse.cz>, Joe Thornber <ejt@redhat.com>, Keith Busch <keith.busch@intel.com>, Kent Overstreet <kent.overstreet@gmail.com>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, "Martin K. Petersen" <martin.petersen@oracle.com>, Michal Hocko <mhocko@suse.com>, Mike Snitzer <snitzer@redhat.com>, NeilBrown <neilb@suse.com>, Sagi Grimberg <sagig@mellanox.com>, Shaohua Li <shli@fb.com>, Steven Whitehouse <swhiteho@redhat.com>, Tejun Heo <tj@kernel.org>, "open list:XFS FILESYSTEM" <xfs@oss.sgi.com> |
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On 05/30/2016 07:34 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 and makre BIO_MAX_SIZE as obsolete, 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. > > The only functional change is iterate_bvec():lib/iov_iter.c > > xfstests(-a auto) over loop aio is run for ext4/xfs to verify > the change and no regression found with this patchset. Added patches 1-7, still waiting for an answer on my reply to #8. -- Jens Axboe
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Re: [PATCH v6 0/8] block: prepare for multipage bvecs Jens Axboe <axboe@kernel.dk> - 2016-06-09 18:10 +0200 Re: [PATCH v6 0/8] block: prepare for multipage bvecs Ming Lei <ming.lei@canonical.com> - 2016-06-10 04:50 +0200
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