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Open Source and information security mailing list archives
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Date: Tue, 18 Aug 2020 02:25:49 +0000 From: linmiaohe <linmiaohe@...wei.com> To: Matthew Wilcox <willy@...radead.org> CC: "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] mm/migrate: Avoid possible unnecessary ptrace_may_access() call in kernel_move_pages() Matthew Wilcox <willy@...radead.org> wrote: >On Mon, Aug 17, 2020 at 07:59:33AM -0400, Miaohe Lin wrote: >> There is no need to check if this process has the right to modify the >> specified process when they are same. > >We should probably also skip the security hook call if a process is modifying its own pages. > >How about this instead? > It sounds good, thanks for your good advice. Would you like a tag like suggest-by?
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