From: Peter Zijlstra <peterz@infradead.org>
To: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
Michel Lespinasse <walken@google.com>
Subject: Re: [PATCH 2/4] mm/rmap: convert anon_vma rwsem to rwlock_t
Date: Fri, 1 Nov 2013 09:46:05 +0100 [thread overview]
Message-ID: <20131101084605.GC19466@laptop.lan> (raw)
In-Reply-To: <1383292467-28922-3-git-send-email-yuanhan.liu@linux.intel.com>
On Fri, Nov 01, 2013 at 03:54:25PM +0800, Yuanhan Liu wrote:
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -2955,15 +2955,15 @@ static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma)
> * The LSB of head.next can't change from under us
> * because we hold the mm_all_locks_mutex.
> */
> - down_write_nest_lock(&anon_vma->rwsem, &mm->mmap_sem);
> + write_lock(&anon_vma->rwlock);
You lost:
http://marc.info/?l=linux-kernel&m=138054148402109
next prev parent reply other threads:[~2013-11-01 8:46 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-01 7:54 [PATCH 0/4] per anon_vma lock and turn anon_vma rwsem lock to rwlock_t Yuanhan Liu
2013-11-01 7:54 ` [PATCH 1/4] mm/rmap: per anon_vma lock Yuanhan Liu
2013-11-01 8:43 ` Peter Zijlstra
2013-11-01 9:22 ` Michel Lespinasse
2013-11-01 9:29 ` Ingo Molnar
2013-11-01 10:07 ` Yuanhan Liu
2013-11-01 10:15 ` Peter Zijlstra
2013-11-01 11:44 ` Yuanhan Liu
2013-11-01 12:07 ` Peter Zijlstra
2013-11-01 14:02 ` Yuanhan Liu
2013-11-01 9:38 ` Yuanhan Liu
2013-11-01 10:22 ` Peter Zijlstra
2013-11-01 14:09 ` Yuanhan Liu
2013-11-01 17:47 ` Linus Torvalds
2013-11-01 7:54 ` [PATCH 2/4] mm/rmap: convert anon_vma rwsem to rwlock_t Yuanhan Liu
2013-11-01 8:46 ` Peter Zijlstra [this message]
2013-11-01 7:54 ` [PATCH 3/4] mm/rmap: cleanup unnecessary code Yuanhan Liu
2013-11-01 7:54 ` [PATCH 4/4] mm/rmap.c: move anon_vma initialization code into anon_vma_ctor Yuanhan Liu
2013-11-01 18:04 ` Linus Torvalds
2013-11-04 3:37 ` Yuanhan Liu
2013-11-01 8:01 ` [PATCH 0/4] per anon_vma lock and turn anon_vma rwsem lock to rwlock_t Ingo Molnar
2013-11-01 8:11 ` Yuanhan Liu
2013-11-01 8:21 ` Ingo Molnar
2013-11-01 10:16 ` Yuanhan Liu
2013-11-02 3:15 ` Davidlohr Bueso
2013-11-04 3:59 ` Yuanhan Liu
2013-11-05 1:44 ` Tim Chen
2013-11-05 2:03 ` Tim Chen
2013-11-05 3:41 ` Yuanhan Liu
2013-11-05 3:10 ` Yuanhan Liu
2013-11-05 14:43 ` Yuanhan Liu
2013-11-01 17:49 ` Davidlohr Bueso
2013-11-01 18:09 ` Linus Torvalds
2013-11-01 18:47 ` Michel Lespinasse
2013-11-01 18:55 ` Linus Torvalds
2013-11-02 3:18 ` Davidlohr Bueso
2013-11-01 19:01 ` KOSAKI Motohiro
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