Messages in this thread Patch in this message | | | From | Petr Holasek <> | Subject | [PATCH] hugetlbfs: correct handling of negative input to /proc/sys/vm/nr_hugepages | Date | Mon, 21 Feb 2011 16:47:49 +0100 |
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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@redhat.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
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