From: "Yan Zheng" <yanzheng@21cn.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org
Subject: [PATCH]fix page release issue in filemap_fault
Date: Mon, 8 Oct 2007 23:28:07 +0800 [thread overview]
Message-ID: <3d0408630710080828h7ad160dbxf6cbd8513c1ad3e8@mail.gmail.com> (raw)
Hi all
find_lock_page increases page's usage count, we should decrease it
before return VM_FAULT_SIGBUS
Signed-off-by: Yan Zheng<yanzheng@21cn.com>
----
diff -ur linux-2.6.23-rc9/mm/filemap.c linux/mm/filemap.c
--- linux-2.6.23-rc9/mm/filemap.c 2007-10-07 15:03:33.000000000 +0800
+++ linux/mm/filemap.c 2007-10-08 23:14:39.000000000 +0800
@@ -1388,6 +1388,7 @@
size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
if (unlikely(vmf->pgoff >= size)) {
unlock_page(page);
+ page_cache_release(page);
goto outside_data_content;
}
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next reply other threads:[~2007-10-08 15:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-08 15:28 Yan Zheng [this message]
2007-10-08 17:15 ` Peter Zijlstra
2007-10-08 17:23 ` Rik van Riel
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