From: Christoph Lameter <cl@linux.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Dave Jones <davej@redhat.com>,
Ben Hutchings <ben@decadent.org.uk>,
Andi Kleen <ak@linux.intel.com>, Hugh Dickins <hughd@google.com>,
LKML <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>
Subject: Re: [PATCH 4/5] mempolicy: fix refcount leak in mpol_set_shared_policy()
Date: Mon, 20 Aug 2012 19:46:09 +0000 [thread overview]
Message-ID: <00000139459223d7-93a9c53f-6724-4a4b-b675-cd25d8d53c71-000000@email.amazonses.com> (raw)
In-Reply-To: <1345480594-27032-5-git-send-email-mgorman@suse.de>
On Mon, 20 Aug 2012, Mel Gorman wrote:
> @@ -2318,9 +2323,7 @@ void mpol_free_shared_policy(struct shared_policy *p)
> while (next) {
> n = rb_entry(next, struct sp_node, nd);
> next = rb_next(&n->nd);
> - rb_erase(&n->nd, &p->root);
Looks like we need to keep the above line? sp_delete does not remove the
tree entry.
> - mpol_put(n->policy);
> - kmem_cache_free(sn_cache, n);
> + sp_delete(p, n);
> }
> mutex_unlock(&p->mutex);
> }
>
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next prev parent reply other threads:[~2012-08-20 19:46 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-20 16:36 [PATCH 0/5] Memory policy corruption fixes V2 Mel Gorman
2012-08-20 16:36 ` [PATCH 1/5] Revert "mm: mempolicy: Let vma_merge and vma_split handle vma->vm_policy linkages" Mel Gorman
2012-08-20 16:36 ` [PATCH 2/5] mempolicy: Remove mempolicy sharing Mel Gorman
2012-08-20 19:35 ` Christoph Lameter
2012-08-22 19:03 ` Andrew Morton
2012-08-22 19:33 ` Mel Gorman
2012-08-22 19:35 ` Andi Kleen
2012-08-20 16:36 ` [PATCH 3/5] mempolicy: fix a race in shared_policy_replace() Mel Gorman
2012-08-20 19:52 ` Christoph Lameter
2012-09-07 22:59 ` KOSAKI Motohiro
2012-08-20 16:36 ` [PATCH 4/5] mempolicy: fix refcount leak in mpol_set_shared_policy() Mel Gorman
2012-08-20 19:46 ` Christoph Lameter [this message]
2012-08-21 7:15 ` Mel Gorman
2012-08-21 15:38 ` Christoph Lameter
2012-08-20 16:36 ` [PATCH 5/5] mempolicy: fix a memory corruption by refcount imbalance in alloc_pages_vma() Mel Gorman
2012-08-20 19:51 ` Christoph Lameter
2012-08-21 7:26 ` Mel Gorman
2012-08-21 15:37 ` Christoph Lameter
2012-09-07 23:06 ` KOSAKI Motohiro
2012-08-21 7:29 ` [PATCH 0/5] Memory policy corruption fixes V2 Mel Gorman
2012-09-06 12:40 ` Josh Boyer
2012-09-07 9:43 ` Mel Gorman
2012-08-21 21:46 ` Andi Kleen
2012-10-09 16:58 [PATCH 0/5] Memory policy corruption fixes -stable Mel Gorman
2012-10-09 16:58 ` [PATCH 4/5] mempolicy: fix refcount leak in mpol_set_shared_policy() Mel Gorman
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