cleanup bvec allocation

To: Jens Axboe <axboe@xxxxxxxxx>
Subject: cleanup bvec allocation
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 2 Feb 2021 18:19:18 +0100
Cc: Song Liu <song@xxxxxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx

Hi Jens,

This series cleans up various lose ends in the bvec allocator.

Follow-Ups:
- Re: cleanup bvec allocation
  - From: Jens Axboe
- Re: cleanup bvec allocation
  - From: Christoph Hellwig
- [PATCH 11/11] block: use bi_max_vecs to find the bvec pool
  - From: Christoph Hellwig
- [PATCH 10/11] md/raid10: remove dead code in reshape_request
  - From: Christoph Hellwig
- [PATCH 08/11] block: set BIO_NO_PAGE_REF in bio_iov_bvec_set
  - From: Christoph Hellwig
- [PATCH 04/11] block: streamline bvec_alloc
  - From: Christoph Hellwig
- [PATCH 02/11] block: move struct biovec_slab to bio.c
  - From: Christoph Hellwig
- [PATCH 09/11] block: mark the bio as cloned in bio_iov_bvec_set
  - From: Christoph Hellwig
- [PATCH 07/11] block: remove a layer of indentation in bio_iov_iter_get_pages
  - From: Christoph Hellwig
- [PATCH 06/11] block: turn the nr_iovecs argument to bio_alloc* into an unsigned short
  - From: Christoph Hellwig
- [PATCH 05/11] block: remove the 1 and 4 vec bvec_slabs entries
  - From: Christoph Hellwig
- [PATCH 03/11] block: factor out a bvec_alloc_gfp helper
  - From: Christoph Hellwig
- [PATCH 01/11] block: reuse BIO_INLINE_VECS for integrity bvecs
  - From: Christoph Hellwig