From: Rik van Riel <riel@redhat.com>
To: Michel Lespinasse <walken@google.com>
Cc: Alex Shi <alex.shi@intel.com>, Ingo Molnar <mingo@kernel.org>,
David Howells <dhowells@redhat.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Thomas Gleixner <tglx@linutronix.de>,
Yuanhan Liu <yuanhan.liu@linux.intel.com>,
Peter Hurley <peter@hurleysoftware.com>,
Dave Chinner <david@fromorbit.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 03/13] rwsem: move rwsem_down_failed_common code into rwsem_down_{read,write}_failed
Date: Thu, 28 Mar 2013 15:08:35 -0400 [thread overview]
Message-ID: <51549533.4080003@redhat.com> (raw)
In-Reply-To: <1363344869-15732-4-git-send-email-walken@google.com>
On 03/15/2013 06:54 AM, Michel Lespinasse wrote:
> Remove the rwsem_down_failed_common function and replace it with two
> identical copies of its code in rwsem_down_{read,write}_failed.
>
> This is because we want to make different optimizations in
> rwsem_down_{read,write}_failed; we are adding this pure-duplication
> step as a separate commit in order to make it easier to check the
> following steps.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
next prev parent reply other threads:[~2013-03-28 19:10 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-15 10:54 [PATCH v2 00/13] rwsem fast-path write lock stealing Michel Lespinasse
2013-03-15 10:54 ` [PATCH v2 01/13] rwsem: make the waiter type an enumeration rather than a bitmask Michel Lespinasse
2013-03-28 18:59 ` Rik van Riel
2013-03-15 10:54 ` [PATCH v2 02/13] rwsem: shorter spinlocked section in rwsem_down_failed_common() Michel Lespinasse
2013-03-28 16:21 ` Peter Hurley
2013-03-28 19:03 ` Rik van Riel
2013-03-15 10:54 ` [PATCH v2 03/13] rwsem: move rwsem_down_failed_common code into rwsem_down_{read,write}_failed Michel Lespinasse
2013-03-28 17:05 ` Peter Hurley
2013-04-27 21:21 ` Davidlohr Bueso
2013-03-28 19:08 ` Rik van Riel [this message]
2013-03-15 10:54 ` [PATCH v2 04/13] rwsem: simplify rwsem_down_read_failed Michel Lespinasse
2013-03-28 19:22 ` Rik van Riel
2013-03-15 10:54 ` [PATCH v2 05/13] rwsem: simplify rwsem_down_write_failed Michel Lespinasse
2013-03-28 20:33 ` Rik van Riel
2013-03-15 10:54 ` [PATCH v2 06/13] rwsem: more agressive lock stealing in rwsem_down_write_failed Michel Lespinasse
2013-03-28 20:54 ` Rik van Riel
2013-03-15 10:54 ` [PATCH v2 07/13] rwsem: use cmpxchg for trying to steal write lock Michel Lespinasse
2013-03-28 16:44 ` Peter Hurley
2013-03-28 20:59 ` Rik van Riel
2013-03-15 10:54 ` [PATCH v2 08/13] rwsem: avoid taking wait_lock in rwsem_down_write_failed Michel Lespinasse
2013-03-28 21:01 ` Rik van Riel
2013-03-15 10:54 ` [PATCH v2 09/13] rwsem: skip initial trylock " Michel Lespinasse
2013-03-28 21:16 ` Rik van Riel
2013-03-15 10:54 ` [PATCH v2 10/13] rwsem: simplify __rwsem_do_wake Michel Lespinasse
2013-03-28 16:51 ` Peter Hurley
2013-03-15 10:54 ` [PATCH v2 11/13] rwsem: implement support for write lock stealing on the fastpath Michel Lespinasse
2013-03-28 16:17 ` Peter Hurley
2013-03-15 10:54 ` [PATCH v2 12/13] rwsem: do not block readers at head of queue if other readers are active Michel Lespinasse
2013-03-28 17:25 ` Peter Hurley
2013-03-15 10:54 ` [PATCH v2 13/13] x86 rwsem: avoid taking slow path when stealing write lock Michel Lespinasse
2013-03-28 19:19 ` [PATCH v2 00/13] rwsem fast-path write lock stealing Peter Hurley
[not found] ` <1367097352.1782.14.camel@buesod1.americas.hpqcorp.net>
2013-04-27 23:47 ` Michel Lespinasse
2013-05-07 9:18 ` Michel Lespinasse
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