linux-kernel - Re: [PATCH] mm/hugetlb: use EOPNOTSUPP in hugetlb sysctl handlers

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Message-ID: <049701d178e6$ba604ea0$2f20ebe0$@alibaba-inc.com>
Date:	Tue, 08 Mar 2016 11:00:52 +0800
From:	"Hillf Danton" <hillf.zj@...baba-inc.com>
To:	"'David Rientjes'" <rientjes@...gle.com>,
	"'Jan Stancek'" <jstancek@...hat.com>
Cc:	<linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
	<akpm@...ux-foundation.org>, <n-horiguchi@...jp.nec.com>,
	<mike.kravetz@...cle.com>, <kirill.shutemov@...ux.intel.com>,
	<dave.hansen@...ux.intel.com>, <paul.gortmaker@...driver.com>
Subject: Re: [PATCH] mm/hugetlb: use EOPNOTSUPP in hugetlb sysctl handlers

> 
> On Thu, 3 Mar 2016, Jan Stancek wrote:
> 
> > Replace ENOTSUPP with EOPNOTSUPP. If hugepages are not supported,
> > this value is propagated to userspace. EOPNOTSUPP is part of uapi
> > and is widely supported by libc libraries.
> >
> > Cc: Andrew Morton <akpm@...ux-foundation.org>
> > Cc: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
> > Cc: Mike Kravetz <mike.kravetz@...cle.com>
> > Cc: Hillf Danton <hillf.zj@...baba-inc.com>
> > Cc: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
> > Cc: Dave Hansen <dave.hansen@...ux.intel.com>
> > Cc: Paul Gortmaker <paul.gortmaker@...driver.com>
> >
> > Signed-off-by: Jan Stancek <jstancek@...hat.com>
> 
Acked-by: Hillf Danton <hillf.zj@...baba-inc.com>