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Message-Id: <1298303270-3184-1-git-send-email-pholasek@redhat.com> Date: Mon, 21 Feb 2011 16:47:49 +0100 From: Petr Holasek <pholasek@...hat.com> To: linux-kernel@...r.kernel.org Cc: Petr Holasek <pholasek@...hat.com>, Andi Kleen <ak@...ux.intel.com>, Naoya Horiguchi <n-horiguchi@...jp.nec.com>, Mel Gorman <mel@....ul.ie>, Andrew Morton <akpm@...ux-foundation.org>, Wu Fengguang <fengguang.wu@...el.com>, linux-mm@...ck.org Subject: [PATCH] hugetlbfs: correct handling of negative input to /proc/sys/vm/nr_hugepages When user insert negative value into /proc/sys/vm/nr_hugepages it will result in the setting a random number of HugePages in system (can be easily showed at /proc/meminfo output). This patch fixes the wrong behavior so that the negative input will result in nr_hugepages value unchanged. Signed-off-by: Petr Holasek <pholasek@...hat.com> --- mm/hugetlb.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index bb0b7c1..f99d7a8 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1872,8 +1872,7 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy, unsigned long tmp; int ret; - if (!write) - tmp = h->max_huge_pages; + tmp = h->max_huge_pages; if (write && h->order >= MAX_ORDER) return -EINVAL; -- 1.7.1 -- 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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