From: Linus Torvalds <torvalds@linux-foundation.org>
To: Huang Ying <ying.huang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linux-MM <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Peter Xu <peterx@redhat.com>, Hugh Dickins <hughd@google.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@surriel.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Michal Hocko <mhocko@kernel.org>,
Dave Hansen <dave.hansen@intel.com>,
Tim Chen <tim.c.chen@intel.com>
Subject: Re: [PATCH] mm: Free unused swap cache page in write protection fault handler
Date: Tue, 12 Jan 2021 18:47:16 -0800 [thread overview]
Message-ID: <CAHk-=whn5kVxEitkC0AyzvWRyxbF91rMrO9ZG6JHBNYLckpDDw@mail.gmail.com> (raw)
In-Reply-To: <20210113024241.179113-1-ying.huang@intel.com>
On Tue, Jan 12, 2021 at 6:43 PM Huang Ying <ying.huang@intel.com> wrote:
>
> So in this patch, at the end of wp_page_copy(), the old unused swap
> cache page will be tried to be freed.
I'd much rather free it later when needed, rather than when you're in
a COW section.
Linus
next prev parent reply other threads:[~2021-01-13 2:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-13 2:42 [PATCH] mm: Free unused swap cache page in write protection fault handler Huang Ying
2021-01-13 2:47 ` Linus Torvalds [this message]
2021-01-13 3:08 ` huang ying
2021-01-13 3:11 ` Matthew Wilcox
2021-01-13 5:24 ` huang ying
2021-01-13 21:09 ` Linus Torvalds
2021-01-15 8:47 ` Huang, Ying
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