Re: [PATCH v2 04/10] mm: make the try_to_munlock void function

From	Vlastimil Babka <vbabka@suse.cz>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 04/10] mm: make the try_to_munlock void function
Date	2017-03-15 08:40 +0100
Message-ID	<tlbHj-4pe-3@gated-at.bofh.it> (permalink)
References	<tl9Fv-2US-3@gated-at.bofh.it> <tl9Fw-2US-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 03/15/2017 06:24 AM, Minchan Kim wrote:
> try_to_munlock returns SWAP_MLOCK if the one of VMAs mapped
> the page has VM_LOCKED flag. In that time, VM set PG_mlocked to
> the page if the page is not pte-mapped THP which cannot be
> mlocked, either.
> 
> With that, __munlock_isolated_page can use PageMlocked to check
> whether try_to_munlock is successful or not without relying on
> try_to_munlock's retval. It helps to make try_to_unmap/try_to_unmap_one
> simple with upcoming patches.
> 
> Cc: Vlastimil Babka <vbabka@suse.cz>
> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Signed-off-by: Minchan Kim <minchan@kernel.org>

Acked-by: Vlastimil Babka <vbabka@suse.cz>

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[PATCH v2 04/10] mm: make the try_to_munlock void function Minchan Kim <minchan@kernel.org> - 2017-03-15 06:30 +0100
  Re: [PATCH v2 04/10] mm: make the try_to_munlock void function Vlastimil Babka <vbabka@suse.cz> - 2017-03-15 08:40 +0100

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