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Re: [GIT PULL] killable rwsems for v4.7

From Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups linux.kernel
Subject Re: [GIT PULL] killable rwsems for v4.7
Date 2016-05-16 22:40 +0200
Message-ID <rzxt0-3pn-17@gated-at.bofh.it> (permalink)
References <rzs9X-8iT-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, May 16, 2016 at 7:55 AM, Ingo Molnar <mingo@kernel.org> wrote:
>
> This tree, by Michal Hocko, implements down_write_killable(). The main usecase
> will be to update mm_sem usage sites to use this new API,

Hmm. Is somebody (Michal?) looking at down_read_killable() too?

The VFS layer will want it with the pending parallel lookup code - the
inode semaphore is being converted to a rwsem, and there's a couple of
"killable" users.. The first step actually just wants to the exclusive
case (ie the write case that this adds), but I think the readdir code
could really use a reading version too..

                   Linus

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Thread

[GIT PULL] killable rwsems for v4.7 Ingo Molnar <mingo@kernel.org> - 2016-05-16 17:00 +0200
  Re: [GIT PULL] killable rwsems for v4.7 Linus Torvalds <torvalds@linux-foundation.org> - 2016-05-16 22:40 +0200
    Re: [GIT PULL] killable rwsems for v4.7 Michal Hocko <mhocko@kernel.org> - 2016-05-17 09:10 +0200
      Re: [GIT PULL] killable rwsems for v4.7 Al Viro <viro@ZenIV.linux.org.uk> - 2016-05-17 20:10 +0200
        Re: [GIT PULL] killable rwsems for v4.7 Linus Torvalds <torvalds@linux-foundation.org> - 2016-05-17 20:40 +0200
    Re: [GIT PULL] killable rwsems for v4.7 Peter Zijlstra <peterz@infradead.org> - 2016-05-17 13:10 +0200

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