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From: Loic Dachary <loic@dachary.org>
To: Samuel Just <sam.just@inktank.com>
Cc: Ceph Development <ceph-devel@vger.kernel.org>
Subject: review request : ReplicatedPG::AccessMode::wake removal
Date: Wed, 14 Aug 2013 12:17:29 +0200	[thread overview]
Message-ID: <520B5939.9050503@dachary.org> (raw)

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Hi Sam,

IIRC, a few weeks ago you told me that 

https://github.com/ceph/ceph/blob/962b64a83037ff79855c5261325de0cd1541f582/src/osd/ReplicatedPG.cc#L4626

  if (mode.wake) {
    requeue_ops(mode.waiting);
    for (list<Cond*>::iterator p = mode.waiting_cond.begin(); p != mode.waiting_cond.end(); ++p)
      (*p)->Signal();
    mode.wake = false;
  } 

was not used and could be discarded. In the context of https://github.com/ceph/ceph/pull/414 I originally kept calling it wherever put_object_context() was called, just to make sure no opportunity to signal the waiters was missed. 

Since that could lead to very subtle bugs if I misunderstood what you meant, I would very much appreciate a review of this specific commit. 

https://github.com/dachary/ceph/commit/014997d55aa8d614fe38a1f86faa246d3c13e21b

I've not hit anything suspicious yet while running teuthology. But that's really the only part of this patch series that worries me.

Cheers

-- 
Loïc Dachary, Artisan Logiciel Libre
All that is necessary for the triumph of evil is that good people do nothing.


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             reply	other threads:[~2013-08-14 10:17 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-14 10:17 Loic Dachary [this message]
2013-08-14 17:30 ` review request : ReplicatedPG::AccessMode::wake removal Loic Dachary

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