From: Johannes Weiner <hannes@cmpxchg.org>
To: Minchan Kim <minchan@kernel.org>
Cc: Huang Ying <ying.huang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 2/2] mm: swap: move anonymous THP split logic to vmscan
Date: Fri, 12 May 2017 12:48:36 -0400 [thread overview]
Message-ID: <20170512164836.GC22367@cmpxchg.org> (raw)
In-Reply-To: <1494555684-11982-2-git-send-email-minchan@kernel.org>
On Fri, May 12, 2017 at 11:21:24AM +0900, Minchan Kim wrote:
> The add_to_swap aims to allocate swap_space(ie, swap slot and
> swapcache) so if it fails due to lack of space in case of THP
> or something(hdd swap but tries THP swapout) *caller* rather
> than add_to_swap itself should split the THP page and retry it
> with base page which is more natural.
>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Minchan Kim <minchan@kernel.org>
Cc: Huang Ying <ying.huang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 2/2] mm: swap: move anonymous THP split logic to vmscan
Date: Fri, 12 May 2017 12:48:36 -0400 [thread overview]
Message-ID: <20170512164836.GC22367@cmpxchg.org> (raw)
In-Reply-To: <1494555684-11982-2-git-send-email-minchan@kernel.org>
On Fri, May 12, 2017 at 11:21:24AM +0900, Minchan Kim wrote:
> The add_to_swap aims to allocate swap_space(ie, swap slot and
> swapcache) so if it fails due to lack of space in case of THP
> or something(hdd swap but tries THP swapout) *caller* rather
> than add_to_swap itself should split the THP page and retry it
> with base page which is more natural.
>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
next prev parent reply other threads:[~2017-05-12 16:48 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-25 12:56 [PATCH -mm -v10 0/3] THP swap: Delay splitting THP during swapping out Huang, Ying
2017-04-25 12:56 ` Huang, Ying
2017-04-25 12:56 ` [PATCH -mm -v10 1/3] mm, THP, swap: Delay splitting THP during swap out Huang, Ying
2017-04-25 12:56 ` Huang, Ying
[not found] ` <20170425125658.28684-2-ying.huang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-04-27 5:31 ` Minchan Kim
2017-04-27 5:31 ` Minchan Kim
2017-04-27 5:31 ` Minchan Kim
2017-04-27 7:12 ` Huang, Ying
2017-04-27 7:12 ` Huang, Ying
2017-04-27 7:12 ` Huang, Ying
[not found] ` <87mvb21fz1.fsf-5/hDr2MS57EDqwDYnZuMFFaTQe2KTcn/@public.gmane.org>
2017-04-27 13:37 ` Johannes Weiner
2017-04-27 13:37 ` Johannes Weiner
2017-04-27 13:37 ` Johannes Weiner
2017-04-28 8:40 ` Minchan Kim
2017-04-28 8:40 ` Minchan Kim
2017-04-28 12:21 ` Huang, Ying
2017-04-28 12:21 ` Huang, Ying
[not found] ` <87d1bwvi26.fsf-5/hDr2MS57EDqwDYnZuMFFaTQe2KTcn/@public.gmane.org>
2017-05-10 1:03 ` Minchan Kim
2017-05-10 1:03 ` Minchan Kim
2017-05-10 1:03 ` Minchan Kim
2017-05-01 10:44 ` Johannes Weiner
2017-05-01 10:44 ` Johannes Weiner
2017-05-01 10:44 ` Johannes Weiner
2017-05-01 23:53 ` Minchan Kim
2017-05-01 23:53 ` Minchan Kim
2017-05-01 23:53 ` Minchan Kim
2017-05-10 13:56 ` Johannes Weiner
2017-05-10 13:56 ` Johannes Weiner
[not found] ` <20170510135654.GD17121-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2017-05-10 23:25 ` Minchan Kim
2017-05-10 23:25 ` Minchan Kim
2017-05-10 23:25 ` Minchan Kim
2017-05-11 0:50 ` Huang, Ying
2017-05-11 0:50 ` Huang, Ying
2017-05-11 0:50 ` Huang, Ying
[not found] ` <87h90sb4jq.fsf-5/hDr2MS57EDqwDYnZuMFFaTQe2KTcn/@public.gmane.org>
2017-05-11 4:31 ` Minchan Kim
2017-05-11 4:31 ` Minchan Kim
2017-05-11 4:31 ` Minchan Kim
2017-05-12 2:21 ` [PATCH 1/2] mm: swap: unify swap slot free functions to put_swap_page Minchan Kim
2017-05-12 2:21 ` Minchan Kim
2017-05-12 2:21 ` [PATCH 2/2] mm: swap: move anonymous THP split logic to vmscan Minchan Kim
2017-05-12 2:21 ` Minchan Kim
2017-05-12 16:48 ` Johannes Weiner [this message]
2017-05-12 16:48 ` Johannes Weiner
2017-05-12 16:47 ` [PATCH 1/2] mm: swap: unify swap slot free functions to put_swap_page Johannes Weiner
2017-05-12 16:47 ` Johannes Weiner
2017-05-11 1:22 ` [PATCH -mm -v10 1/3] mm, THP, swap: Delay splitting THP during swap out Minchan Kim
2017-05-11 1:22 ` Minchan Kim
2017-05-11 10:40 ` Johannes Weiner
2017-05-11 10:40 ` Johannes Weiner
2017-05-12 1:34 ` Minchan Kim
2017-05-12 1:34 ` Minchan Kim
2017-04-25 12:56 ` [PATCH -mm -v10 2/3] mm, THP, swap: Check whether THP can be split firstly Huang, Ying
2017-04-25 12:56 ` Huang, Ying
2017-04-25 21:43 ` Johannes Weiner
2017-04-25 21:43 ` Johannes Weiner
2017-04-25 12:56 ` [PATCH -mm -v10 3/3] mm, THP, swap: Enable THP swap optimization only if has compound map Huang, Ying
2017-04-25 12:56 ` Huang, Ying
2017-04-25 21:46 ` Johannes Weiner
2017-04-25 21:46 ` Johannes Weiner
2017-04-28 13:16 ` Kirill A. Shutemov
2017-04-28 13:16 ` Kirill A. Shutemov
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