From: Vlastimil Babka <vbabka@suse.cz>
To: Minchan Kim <minchan@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
kernel-team@lge.com, Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Anshuman Khandual <khandual@linux.vnet.ibm.com>
Subject: Re: [PATCH v2 04/10] mm: make the try_to_munlock void function
Date: Wed, 15 Mar 2017 08:31:45 +0100 [thread overview]
Message-ID: <a3988c6c-88dc-f8f6-f4fc-1fa96a3bb313@suse.cz> (raw)
In-Reply-To: <1489555493-14659-5-git-send-email-minchan@kernel.org>
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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next prev parent reply other threads:[~2017-03-15 7:31 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-15 5:24 [PATCH v2 00/10] make try_to_unmap simple Minchan Kim
2017-03-15 5:24 ` [PATCH v2 01/10] mm: remove unncessary ret in page_referenced Minchan Kim
2017-03-15 5:24 ` [PATCH v2 02/10] mm: remove SWAP_DIRTY in ttu Minchan Kim
2017-03-15 5:24 ` [PATCH v2 03/10] mm: remove SWAP_MLOCK check for SWAP_SUCCESS " Minchan Kim
2017-03-15 5:24 ` [PATCH v2 04/10] mm: make the try_to_munlock void function Minchan Kim
2017-03-15 7:31 ` Vlastimil Babka [this message]
2017-04-08 3:18 ` alexander.levin
2017-04-11 2:56 ` Minchan Kim
2017-03-15 5:24 ` [PATCH v2 05/10] mm: remove SWAP_MLOCK in ttu Minchan Kim
2017-03-15 5:24 ` [PATCH v2 06/10] mm: remove SWAP_AGAIN " Minchan Kim
2017-03-15 5:24 ` [PATCH v2 07/10] mm: make ttu's return boolean Minchan Kim
2017-03-15 5:24 ` [PATCH v2 08/10] mm: make rmap_walk void function Minchan Kim
2017-03-15 5:24 ` [PATCH v2 09/10] mm: make rmap_one boolean function Minchan Kim
2017-03-15 5:24 ` [PATCH v2 10/10] mm: remove SWAP_[SUCCESS|AGAIN|FAIL] Minchan Kim
2017-03-16 4:40 ` Sergey Senozhatsky
2017-03-16 5:33 ` Minchan Kim
2017-03-16 5:44 ` Sergey Senozhatsky
2017-03-16 5:51 ` Minchan Kim
2017-03-16 5:57 ` Sergey Senozhatsky
2017-03-16 18:54 ` kbuild test robot
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