From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx203.postini.com [74.125.245.203]) by kanga.kvack.org (Postfix) with SMTP id A34AC6B0031 for ; Thu, 25 Jul 2013 18:59:01 -0400 (EDT) From: Johannes Weiner Subject: [patch] Revert "page-writeback.c: subtract min_free_kbytes from dirtyable memory" Date: Thu, 25 Jul 2013 18:58:54 -0400 Message-Id: <1374793134-16678-1-git-send-email-hannes@cmpxchg.org> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Paul Szabo , Rik van Riel , linux-mm@kvack.org, linux-kernel@vger.kernel.org This reverts commit 75f7ad8e043d9383337d917584297f7737154bbf. It was the result of a problem observed with a 3.2 kernel and merged in 3.9, while the issue had been resolved upstream in 3.3 (ab8fabd mm: exclude reserved pages from dirtyable memory). The "reserved pages" are a superset of min_free_kbytes, thus this change is redundant and confusing. Revert it. Signed-off-by: Johannes Weiner --- mm/page-writeback.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 3f0c895..d374b29 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -241,9 +241,6 @@ static unsigned long global_dirtyable_memory(void) if (!vm_highmem_is_dirtyable) x -= highmem_dirtyable_memory(x); - /* Subtract min_free_kbytes */ - x -= min_t(unsigned long, x, min_free_kbytes >> (PAGE_SHIFT - 10)); - return x + 1; /* Ensure that we never return 0 */ } -- 1.8.3.2 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org