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Re: [PATCH 1.2/2] mm: introduce memalloc_nofs_{save,restore} API

From Michal Hocko <mhocko@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH 1.2/2] mm: introduce memalloc_nofs_{save,restore} API
Date 2016-04-27 22:40 +0200
Message-ID <rsEpA-7BA-13@gated-at.bofh.it> (permalink)
References <rs9OP-76D-21@gated-at.bofh.it> <rswin-Gj-39@gated-at.bofh.it> <rswin-Gj-43@gated-at.bofh.it> <rsDWA-7mg-55@gated-at.bofh.it>
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On Wed 27-04-16 22:09:27, Michal Hocko wrote:
[...]
> [   53.993480]   [<ffffffff810945e3>] mark_held_locks+0x5e/0x74
> [   53.993480]   [<ffffffff8109722c>] lockdep_trace_alloc+0xb2/0xb5
> [   53.993480]   [<ffffffff81174e56>] kmem_cache_alloc+0x36/0x2b0

Scratch that. I got it. It is the lockdep annotation which I got wrong
with my patch. I thought this was done much later in the slow path.
My head is burnt so I will get back to it tomorrow. The patch 1.1 should
be OK to go for XFS though because it doesn't really introduce anything
new.

Sorry about the noise!
-- 
Michal Hocko
SUSE Labs

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Thread

[PATCH 0/2] scop GFP_NOFS api Michal Hocko <mhocko@kernel.org> - 2016-04-26 14:00 +0200
  [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used explicitly from memalloc_no{fs,io}_{save,restore} context Michal Hocko <mhocko@kernel.org> - 2016-04-26 14:00 +0200
    Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Dave Chinner <david@fromorbit.com> - 2016-04-27 01:00 +0200
      Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Michal Hocko <mhocko@kernel.org> - 2016-04-27 10:10 +0200
        Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Dave Chinner <david@fromorbit.com> - 2016-04-28 01:00 +0200
      Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Michal Hocko <mhocko@kernel.org> - 2016-04-28 10:20 +0200
        Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Dave Chinner <david@fromorbit.com> - 2016-04-29 00:00 +0200
          Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Michal Hocko <mhocko@kernel.org> - 2016-04-29 14:20 +0200
            Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Dave Chinner <david@fromorbit.com> - 2016-04-30 01:50 +0200
              Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Michal Hocko <mhocko@kernel.org> - 2016-05-03 17:40 +0200
                Re: [PATCH 2/2] mm, debug: report when GFP_NO{FS,IO} is used  explicitly from memalloc_no{fs,io}_{save,restore} context Dave Chinner <david@fromorbit.com> - 2016-05-04 02:10 +0200
  [PATCH 1/2] mm: add PF_MEMALLOC_NOFS Michal Hocko <mhocko@kernel.org> - 2016-04-26 14:00 +0200
    Re: [PATCH 1/2] mm: add PF_MEMALLOC_NOFS Dave Chinner <david@fromorbit.com> - 2016-04-27 01:10 +0200
      Re: [PATCH 1/2] mm: add PF_MEMALLOC_NOFS Michal Hocko <mhocko@kernel.org> - 2016-04-27 10:00 +0200
    Re: [PATCH 1/2] mm: add PF_MEMALLOC_NOFS Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-04-27 13:00 +0200
      Re: [PATCH 1/2] mm: add PF_MEMALLOC_NOFS Michal Hocko <mhocko@kernel.org> - 2016-04-27 13:20 +0200
        Re: [PATCH 1/2] mm: add PF_MEMALLOC_NOFS Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-04-27 16:50 +0200
          Re: [PATCH 1/2] mm: add PF_MEMALLOC_NOFS Michal Hocko <mhocko@kernel.org> - 2016-04-27 22:10 +0200
    [PATCH 1.1/2] xfs: abstract PF_FSTRANS to PF_MEMALLOC_NOFS Michal Hocko <mhocko@kernel.org> - 2016-04-27 14:00 +0200
      [PATCH 1.2/2] mm: introduce memalloc_nofs_{save,restore} API Michal Hocko <mhocko@kernel.org> - 2016-04-27 14:00 +0200
        Re: [PATCH 1.2/2] mm: introduce memalloc_nofs_{save,restore} API Michal Hocko <mhocko@kernel.org> - 2016-04-27 15:10 +0200
        Re: [PATCH 1.2/2] mm: introduce memalloc_nofs_{save,restore} API Michal Hocko <mhocko@kernel.org> - 2016-04-27 22:10 +0200
          Re: [PATCH 1.2/2] mm: introduce memalloc_nofs_{save,restore} API Michal Hocko <mhocko@kernel.org> - 2016-04-27 22:40 +0200
        Re: [PATCH 1.2/2] mm: introduce memalloc_nofs_{save,restore} API Michal Hocko <mhocko@kernel.org> - 2016-04-27 23:20 +0200
      Re: [PATCH 1.1/2] xfs: abstract PF_FSTRANS to PF_MEMALLOC_NOFS Andreas Dilger <adilger@dilger.ca> - 2016-04-27 19:50 +0200
        Re: [PATCH 1.1/2] xfs: abstract PF_FSTRANS to PF_MEMALLOC_NOFS Michal Hocko <mhocko@kernel.org> - 2016-04-27 21:50 +0200
  Re: [PATCH 0/2] scop GFP_NOFS api NeilBrown <mr@neil.brown.name> - 2016-04-29 08:20 +0200
    Re: [Cluster-devel] [PATCH 0/2] scop GFP_NOFS api Steven Whitehouse <swhiteho@redhat.com> - 2016-04-29 12:30 +0200
      Re: [Cluster-devel] [PATCH 0/2] scop GFP_NOFS api NeilBrown <mr@neil.brown.name> - 2016-04-30 23:20 +0200
    Re: [PATCH 0/2] scop GFP_NOFS api Michal Hocko <mhocko@kernel.org> - 2016-04-29 14:10 +0200
      Re: [PATCH 0/2] scop GFP_NOFS api Dave Chinner <david@fromorbit.com> - 2016-04-30 02:30 +0200
      Re: [PATCH 0/2] scop GFP_NOFS api NeilBrown <mr@neil.brown.name> - 2016-05-01 00:00 +0200
        Re: [PATCH 0/2] scop GFP_NOFS api Michal Hocko <mhocko@kernel.org> - 2016-05-03 17:20 +0200
          Re: [PATCH 0/2] scop GFP_NOFS api NeilBrown <mr@neil.brown.name> - 2016-05-04 01:30 +0200
    Re: [PATCH 0/2] scop GFP_NOFS api Dave Chinner <david@fromorbit.com> - 2016-04-30 02:20 +0200
      Re: [PATCH 0/2] scop GFP_NOFS api NeilBrown <mr@neil.brown.name> - 2016-05-01 00:30 +0200
        Re: [PATCH 0/2] scop GFP_NOFS api Dave Chinner <david@fromorbit.com> - 2016-05-04 03:10 +0200
          Re: [PATCH 0/2] scop GFP_NOFS api NeilBrown <mr@neil.brown.name> - 2016-05-06 05:30 +0200

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