From: Johannes Weiner <hannes@cmpxchg.org>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Joonsoo Kim <js1304@gmail.com>, Minchan Kim <minchan@kernel.org>,
Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>,
Michel Lespinasse <walken@google.com>
Subject: Re: [PATCH 3/4] mm, rmap: minimize lock hold when unlink_anon_vmas
Date: Wed, 7 Aug 2013 02:11:38 -0400 [thread overview]
Message-ID: <20130807061138.GK1845@cmpxchg.org> (raw)
In-Reply-To: <1375778620-31593-3-git-send-email-iamjoonsoo.kim@lge.com>
On Tue, Aug 06, 2013 at 05:43:39PM +0900, Joonsoo Kim wrote:
> Currently, we free the avc objects with holding a lock. To minimize
> lock hold time, we just move the avc objects to another list
> with holding a lock. Then, iterate them and free objects without holding
> a lock. This makes lock hold time minimized.
>
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
I expect kfree() to be fast enough that we don't think we need to
bother batching this outside the lock.
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WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Joonsoo Kim <js1304@gmail.com>, Minchan Kim <minchan@kernel.org>,
Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>,
Michel Lespinasse <walken@google.com>
Subject: Re: [PATCH 3/4] mm, rmap: minimize lock hold when unlink_anon_vmas
Date: Wed, 7 Aug 2013 02:11:38 -0400 [thread overview]
Message-ID: <20130807061138.GK1845@cmpxchg.org> (raw)
In-Reply-To: <1375778620-31593-3-git-send-email-iamjoonsoo.kim@lge.com>
On Tue, Aug 06, 2013 at 05:43:39PM +0900, Joonsoo Kim wrote:
> Currently, we free the avc objects with holding a lock. To minimize
> lock hold time, we just move the avc objects to another list
> with holding a lock. Then, iterate them and free objects without holding
> a lock. This makes lock hold time minimized.
>
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
I expect kfree() to be fast enough that we don't think we need to
bother batching this outside the lock.
next prev parent reply other threads:[~2013-08-07 6:11 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-06 8:43 [PATCH 1/4] mm, rmap: do easy-job first in anon_vma_fork Joonsoo Kim
2013-08-06 8:43 ` Joonsoo Kim
2013-08-06 8:43 ` [PATCH 2/4] mm, rmap: allocate anon_vma_chain before starting to link anon_vma_chain Joonsoo Kim
2013-08-06 8:43 ` Joonsoo Kim
2013-08-07 6:08 ` Johannes Weiner
2013-08-07 6:08 ` Johannes Weiner
2013-08-07 7:17 ` Joonsoo Kim
2013-08-07 7:17 ` Joonsoo Kim
2013-08-06 8:43 ` [PATCH 3/4] mm, rmap: minimize lock hold when unlink_anon_vmas Joonsoo Kim
2013-08-06 8:43 ` Joonsoo Kim
2013-08-07 6:11 ` Johannes Weiner [this message]
2013-08-07 6:11 ` Johannes Weiner
2013-08-07 7:18 ` Joonsoo Kim
2013-08-07 7:18 ` Joonsoo Kim
2013-08-06 8:43 ` [PATCH 4/4] mm, page_alloc: optimize batch count in free_pcppages_bulk() Joonsoo Kim
2013-08-06 8:43 ` Joonsoo Kim
2013-08-06 8:48 ` Joonsoo Kim
2013-08-06 8:48 ` Joonsoo Kim
2013-08-06 12:58 ` [PATCH 1/4] mm, rmap: do easy-job first in anon_vma_fork Johannes Weiner
2013-08-06 12:58 ` Johannes Weiner
2013-08-07 7:16 ` Joonsoo Kim
2013-08-07 7:16 ` Joonsoo Kim
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