From: mingming cao <cmm@us.ibm.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: Andrew Morton <akpm@digeo.com>,
linux-kernel@vger.kernel.org, dipankar@in.ibm.com
Subject: Re: [PATCH]IPC locks breaking down with RCU
Date: Mon, 21 Oct 2002 11:07:14 -0700 [thread overview]
Message-ID: <3DB44252.A9ECB0B5@us.ibm.com> (raw)
In-Reply-To: Pine.LNX.4.44.0210201346180.1710-100000@localhost.localdomain
Hugh Dickins wrote:
>
> I'm ignorant of RCU, and my mind goes mushy around memory barriers,
> but I expect you've consulted the best there; and I'll be wanting to
> refer to this implementation as a nice example of how to use RCU.
Yes the RCU patch author Dipankar has already reviewed the memory
barriers in ipclock patch.
> Now delete spinlock_t ary and all references to it: only grow_ary
> is using it, and it's already protected by sem, and we'd be in
> trouble with concurrent allocations if it were not.
>
Oh, right. grow_ary does not need spinlock_t ary anymore.:-)
next prev parent reply other threads:[~2002-10-21 18:04 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-18 0:14 [PATCH]IPC locks breaking down with RCU mingming cao
2002-10-20 13:14 ` Hugh Dickins
2002-10-20 17:27 ` Hugh Dickins
2002-10-21 18:11 ` mingming cao
2002-10-21 19:00 ` Hugh Dickins
2002-10-24 21:49 ` [PATCH]updated ipc lock patch mingming cao
2002-10-24 22:29 ` Andrew Morton
2002-10-24 22:56 ` Hugh Dickins
2002-10-24 23:30 ` Andrew Morton
2002-10-24 23:59 ` Hugh Dickins
2002-10-25 0:35 ` [Lse-tech] " Rick Lindsley
2002-10-25 1:07 ` Robert Love
2002-10-25 0:07 ` mingming cao
2002-10-25 0:24 ` Andrew Morton
2002-10-25 4:18 ` Rusty Russell
2002-10-25 5:53 ` mingming cao
2002-10-25 7:27 ` Rusty Russell
2002-10-25 5:36 ` Manfred Spraul
2002-10-25 16:53 ` Rik van Riel
2002-10-24 23:23 ` mingming cao
2002-10-25 14:21 ` [Lse-tech] " Paul Larson
2002-10-25 17:17 ` mingming cao
2002-10-25 18:20 ` Paul Larson
2002-10-25 18:51 ` mingming cao
2002-10-25 19:06 ` Paul Larson
2002-10-25 20:14 ` mingming cao
2002-10-25 20:23 ` Manfred Spraul
2002-10-25 0:38 ` Cliff White
2002-10-31 17:52 ` [Lse-tech] Re: [PATCH]updated ipc lock patch [PERFORMANCE RESULTS] Bill Hartner
2002-10-21 19:18 ` [PATCH]IPC locks breaking down with RCU Dipankar Sarma
2002-10-21 19:36 ` Hugh Dickins
2002-10-21 19:41 ` mingming cao
2002-10-21 20:14 ` Dipankar Sarma
2002-10-21 18:07 ` mingming cao [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-10-21 19:23 Manfred Spraul
2002-10-21 20:10 ` Hugh Dickins
2002-10-21 20:34 ` mingming cao
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