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

Groups > linux.kernel > #1372098

Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs

From Kent Overstreet <kent.overstreet@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs
Date 2016-04-06 02:40 +0200
Message-ID <rkJFM-3PD-11@gated-at.bofh.it> (permalink)
References <rkDh0-7Hy-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Wed, Apr 06, 2016 at 01:44:06AM +0800, Ming Lei wrote:
> After arbitrary bio size is supported, the incoming bio may
> be very big. We have to split the bio into small bios so that
> each holds at most BIO_MAX_PAGES bvecs for safety reason, such
> as bio_clone().
> 
> This patch fixes the following kernel crash:

Ming, let's not do it this way; drivers that don't clone biovecs are the norm -
instead, md has its own queue limits that it ought to be setting up correctly.

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

Thread

[PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-05 19:50 +0200
  Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Shaohua Li <shli@fb.com> - 2016-04-05 20:30 +0200
    Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 02:30 +0200
      Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 02:40 +0200
        Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 02:50 +0200
          Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 03:10 +0200
          Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Shaohua Li <shli@fb.com> - 2016-04-06 03:10 +0200
        Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Shaohua Li <shli@fb.com> - 2016-04-06 02:50 +0200
      Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Shaohua Li <shli@fb.com> - 2016-04-06 02:40 +0200
    Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 02:50 +0200
      Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Shaohua Li <shli@fb.com> - 2016-04-06 03:10 +0200
        Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 03:20 +0200
  Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 02:40 +0200
    Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 03:00 +0200
      Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 03:20 +0200
        Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 03:30 +0200
          Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 03:30 +0200
            Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 04:00 +0200
              Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 04:30 +0200
                Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 04:40 +0200
                Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 04:50 +0200
                Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 05:00 +0200
                Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 05:00 +0200
                Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Kent Overstreet <kent.overstreet@gmail.com> - 2016-04-06 04:40 +0200
                Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 04:40 +0200
  Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-06 03:10 +0200
    Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Eric Wheeler <bcache@lists.ewheeler.net> - 2016-04-07 03:50 +0200
  Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Eric Wheeler <bcache@lists.ewheeler.net> - 2016-04-07 03:40 +0200
    Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-07 03:50 +0200
      Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Eric Wheeler <bcache@lists.ewheeler.net> - 2016-04-07 04:00 +0200
        Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-07 04:20 +0200
          Re: [PATCH] block: make sure big bio is splitted into at most 256  bvecs Eric Wheeler <bcache@lists.ewheeler.net> - 2016-04-08 01:30 +0200
            Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs Ming Lei <ming.lei@canonical.com> - 2016-04-08 02:30 +0200

csiph-web