From: Andrea Arcangeli <aarcange@redhat.com>
To: Hugh Dickins <hughd@google.com>, Petr Holasek <pholasek@redhat.com>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 4/6] ksm: use the helper method to do the hlist_empty check
Date: Thu, 15 Oct 2015 18:04:23 +0200 [thread overview]
Message-ID: <1444925065-4841-5-git-send-email-aarcange@redhat.com> (raw)
In-Reply-To: <1444925065-4841-1-git-send-email-aarcange@redhat.com>
This just uses the helper function to cleanup the assumption on the
hlist_node internals.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
---
mm/ksm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/ksm.c b/mm/ksm.c
index 929b5c2..241588e 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -661,7 +661,7 @@ static void remove_rmap_item_from_tree(struct rmap_item *rmap_item)
unlock_page(page);
put_page(page);
- if (stable_node->hlist.first)
+ if (!hlist_empty(&stable_node->hlist))
ksm_pages_sharing--;
else
ksm_pages_shared--;
--
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next prev parent reply other threads:[~2015-10-15 16:04 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-15 16:04 [PATCH 0/6] KSM fixes Andrea Arcangeli
2015-10-15 16:04 ` [PATCH 1/6] ksm: fix rmap_item->anon_vma memory corruption and vma user after free Andrea Arcangeli
2015-10-26 0:12 ` Hugh Dickins
2015-10-30 18:55 ` Andrea Arcangeli
2015-10-15 16:04 ` [PATCH 2/6] ksm: add cond_resched() to the rmap_walks Andrea Arcangeli
2015-10-25 23:41 ` Hugh Dickins
2015-10-27 0:32 ` Davidlohr Bueso
2015-11-01 22:19 ` Andrea Arcangeli
2015-10-15 16:04 ` [PATCH 3/6] ksm: don't fail stable tree lookups if walking over stale stable_nodes Andrea Arcangeli
2015-10-25 23:34 ` Hugh Dickins
2015-11-01 23:03 ` Andrea Arcangeli
2015-10-15 16:04 ` Andrea Arcangeli [this message]
2015-10-25 23:22 ` [PATCH 4/6] ksm: use the helper method to do the hlist_empty check Hugh Dickins
2015-10-15 16:04 ` [PATCH 5/6] ksm: use find_mergeable_vma in try_to_merge_with_ksm_page Andrea Arcangeli
2015-10-25 23:21 ` Hugh Dickins
2015-10-15 16:04 ` [PATCH 6/6] ksm: unstable_tree_search_insert error checking cleanup Andrea Arcangeli
2015-10-25 23:18 ` Hugh Dickins
2015-11-01 23:45 ` Andrea Arcangeli
2015-11-02 0:23 ` Hugh Dickins
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