Re: [PATCH 0/4] block: fix bio_will_gap()

From	Sagi Grimberg <sagig@dev.mellanox.co.il>
Newsgroups	linux.kernel
Subject	Re: [PATCH 0/4] block: fix bio_will_gap()
Date	2016-02-15 09:40 +0100
Message-ID	<r2mRm-6Rc-47@gated-at.bofh.it> (permalink)
References	<r2lse-64X-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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> Hi,
>
> After bio splitting is introduced, the splitted bio can be fast-cloned,
> which is correct because biovecs has become immutable since v3.13.
>
> Unfortunately bio_will_gap() isn't ready for this kind of change,
> because it figures out the last bvec via 'bi_io_vec[prev->bi_vcnt - 1]'
> directly.
>
> It is observed that lots of BIOs are merges even the virt boundary
> limit is violated, and the issue is reported from Sagi Grimberg.

This set makes the virt_boundary violation go away...

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[PATCH 0/4] block: fix bio_will_gap() Ming Lei <ming.lei@canonical.com> - 2016-02-15 08:10 +0100
  [PATCH 2/4] block: check virt boundary in bio_will_gap() Ming Lei <ming.lei@canonical.com> - 2016-02-15 08:10 +0100
    Re: [PATCH 2/4] block: check virt boundary in bio_will_gap() Sagi Grimberg <sagig@dev.mellanox.co.il> - 2016-02-15 09:30 +0100
      Re: [PATCH 2/4] block: check virt boundary in bio_will_gap() Ming Lei <ming.lei@canonical.com> - 2016-02-15 11:30 +0100
        Re: [PATCH 2/4] block: check virt boundary in bio_will_gap() Sagi Grimberg <sagig@dev.mellanox.co.il> - 2016-02-15 21:30 +0100
          Re: [PATCH 2/4] block: check virt boundary in bio_will_gap() Ming Lei <ming.lei@canonical.com> - 2016-02-16 14:10 +0100
          Re: [PATCH 2/4] block: check virt boundary in bio_will_gap() Ming Lei <ming.lei@canonical.com> - 2016-02-16 14:10 +0100
  Re: [PATCH 0/4] block: fix bio_will_gap() Sagi Grimberg <sagig@dev.mellanox.co.il> - 2016-02-15 09:40 +0100

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