From: Matthew Wilcox <willy@infradead.org>
To: zhong jiang <zhongjiang@huawei.com>
Cc: akpm@linux-foundation.org, anshuman.khandual@arm.com,
mhocko@suse.com, mst@redhat.com, linux-mm@kvack.org
Subject: Re: [PATCH] mm: redefine the MAP_SHARED_VALIDATE to other value
Date: Mon, 8 Jul 2019 07:43:19 -0700 [thread overview]
Message-ID: <20190708144319.GE32320@bombadil.infradead.org> (raw)
In-Reply-To: <1562573141-11258-1-git-send-email-zhongjiang@huawei.com>
On Mon, Jul 08, 2019 at 04:05:41PM +0800, zhong jiang wrote:
> As the mman manual says, mmap should return fails when we assign
> the flags to MAP_SHARED | MAP_PRIVATE.
>
> But In fact, We run the code successfully and unexpected.
> It is because MAP_SHARED_VALIDATE is introduced and equal to
> MAP_SHARED | MAP_PRIVATE.
No, you don't understand. Look back at the introduction of
MAP_SHARED_VALIDATE.
next prev parent reply other threads:[~2019-07-08 14:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-08 8:05 zhong jiang
2019-07-08 9:20 ` Michal Hocko
2019-07-08 13:52 ` zhong jiang
2019-07-08 16:43 ` Michal Hocko
2019-07-09 1:52 ` zhong jiang
2019-07-08 14:43 ` Matthew Wilcox [this message]
2019-07-09 1:53 ` zhong jiang
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