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Message-ID: <20080620040952.GA18061@wliu-linux.bj.intel.com> Date: Fri, 20 Jun 2008 12:09:52 +0800 From: Kent Liu <kent.liu@...ux.intel.com> To: linux-mm@...ck.org Cc: linux-kernel@...r.kernel.org, kamezawa.hiroyu@...fujitsu.com Subject: [PATCH]Don't calculate vm_total_pages twice when rebuild zonelists in online_pages() Resend the patch with more appropriate subject -- adding [PATCH] prefix. Please consider it. ----- If zonelist is required to be rebuilt in online_pages(), there is no need to recalculate vm_total_pages in that function, as it has been updated in the call build_all_zonelists(). Signed-off-by: Kent Liu <kent.liu@...ux.intel.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> --- mm/memory_hotplug.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 833f854..896ddaf 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -429,7 +429,9 @@ int online_pages(unsigned long pfn, unsigned long nr_pages) if (need_zonelists_rebuild) build_all_zonelists(); - vm_total_pages = nr_free_pagecache_pages(); + else + vm_total_pages = nr_free_pagecache_pages(); + writeback_set_ratelimit(); if (onlined_pages) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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