Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1169556

Re: [PATCH 11/15] libnvdimm: pmem, blk, and btt make_request cleanups

From Christoph Hellwig <hch@lst.de>
Newsgroups linux.kernel
Subject Re: [PATCH 11/15] libnvdimm: pmem, blk, and btt make_request cleanups
Date 2015-06-21 12:20 +0200
Message-ID <pDKw1-29u-1@gated-at.bofh.it> (permalink)
References <pCvpn-8ib-9@gated-at.bofh.it> <pCvz3-gO-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


One patch per driver please.

> diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c
> index 8a6345797a71..9d609ef95266 100644
> --- a/drivers/nvdimm/blk.c
> +++ b/drivers/nvdimm/blk.c
> @@ -170,18 +170,12 @@ static void nd_blk_make_request(struct request_queue *q, struct bio *bio)
>  	struct bvec_iter iter;
>  	struct bio_vec bvec;
>  	int err = 0, rw;
> -	sector_t sector;
>  
> -	sector = bio->bi_iter.bi_sector;
> -	if (bio_end_sector(bio) > get_capacity(disk)) {
> +	if (unlikely(bio_end_sector(bio) > get_capacity(disk))) {
>  		err = -EIO;
>  		goto out;
>  	}
>  
> -	BUG_ON(bio->bi_rw & REQ_DISCARD);

If you remove the DISCARD check you can kill the max sectors one
as well, given that generic_make_request_checks() takes care of it.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH 00/15] libnvdimm: ->rw_bytes(), BLK-mode, unit tests,  and misc features Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:00 +0200
  [PATCH 12/15] libnvdimm: enable iostat Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:00 +0200
    Re: [PATCH 12/15] libnvdimm: enable iostat Christoph Hellwig <hch@lst.de> - 2015-06-19 10:40 +0200
      Re: [PATCH 12/15] libnvdimm: enable iostat Dan Williams <dan.j.williams@intel.com> - 2015-06-19 11:10 +0200
        Re: [PATCH 12/15] libnvdimm: enable iostat Christoph Hellwig <hch@lst.de> - 2015-06-21 12:20 +0200
  [PATCH 07/15] fs/block_dev.c: skip rw_page if bdev has integrity Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:00 +0200
  [PATCH 13/15] libnvdimm: flag libnvdimm block devices as  non-rotational Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:00 +0200
  [PATCH 01/15] block: introduce an ->rw_bytes() block device  operation Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:00 +0200
    Re: [PATCH 01/15] block: introduce an ->rw_bytes() block device operation Dan Williams <dan.j.williams@intel.com> - 2015-06-18 21:30 +0200
  [PATCH 09/15] libnvdimm, blk: add support for blk integrity Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:00 +0200
  [PATCH 15/15] libnvdimm, nfit: handle acpi_nfit_memory_map flags Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:00 +0200
  [PATCH 11/15] libnvdimm: pmem, blk, and btt make_request cleanups Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:10 +0200
    Re: [PATCH 11/15] libnvdimm: pmem, blk, and btt make_request  cleanups Christoph Hellwig <hch@lst.de> - 2015-06-21 12:20 +0200
  [PATCH 08/15] libnvdimm, btt: add support for blk integrity Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:10 +0200
  [PATCH 02/15] libnvdimm: infrastructure for btt devices Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:10 +0200
  [PATCH 10/15] libnvdimm: fix up max_hw_sectors Dan Williams <dan.j.williams@intel.com> - 2015-06-18 02:10 +0200
    Re: [PATCH 10/15] libnvdimm: fix up max_hw_sectors Christoph Hellwig <hch@lst.de> - 2015-06-21 12:10 +0200
  Re: [PATCH 03/15] nd_btt: atomic sector updates Christoph Hellwig <hch@lst.de> - 2015-06-21 12:10 +0200
    Re: [PATCH 03/15] nd_btt: atomic sector updates Dan Williams <dan.j.williams@intel.com> - 2015-06-21 18:40 +0200
  Re: [PATCH 04/15] libnvdimm, nfit, nd_blk: driver for BLK-mode  access persistent memory Christoph Hellwig <hch@lst.de> - 2015-06-21 12:10 +0200
    Re: [PATCH 04/15] libnvdimm, nfit, nd_blk: driver for BLK-mode access  persistent memory Dan Williams <dan.j.williams@intel.com> - 2015-06-21 16:50 +0200

csiph-web