Just a minor issue.
----- Original Message -----
> This patch is a candidate for stable.
>
> ==== CUT HERE ====
>
> When parsing changes to the huge page pool sizes made from userspace
> via the sysctl interface, bogus input values are being covered up
Those are for sysfs code path. sysctl path should be handled by Michal's
patch touched hugetlb_sysctl_handler_common and hugetlb_overcommit_handler.
> by nr_hugepages_store_common and nr_overcommit_hugepages_store
> returning 0 when strict_strtoul returns an error. This patch changes
> the return value for these functions to -EINVAL when strict_strtoul
> returns an error.
>
> Reported-by: CAI Qian <caiqian@xxxxxxxxxx>
>
> Signed-off-by: Eric B Munson <emunson@xxxxxxxxx>
> ---
> mm/hugetlb.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index 8585524..5cb71a9 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -1440,7 +1440,7 @@ static ssize_t nr_hugepages_store_common(bool
> obey_mempolicy,
>
> err = strict_strtoul(buf, 10, &count);
> if (err)
> - return 0;
> + return -EINVAL;
>
> h = kobj_to_hstate(kobj, &nid);
> if (nid == NUMA_NO_NODE) {
> @@ -1519,7 +1519,7 @@ static ssize_t
> nr_overcommit_hugepages_store(struct kobject *kobj,
>
> err = strict_strtoul(buf, 10, &input);
> if (err)
> - return 0;
> + return -EINVAL;
>
> spin_lock(&hugetlb_lock);
> h->nr_overcommit_huge_pages = input;
> --
> 1.7.1
>
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