Re: [PATCH] mm: Free unused swap cache page in write protection fault handler
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2021-01-13 02:48:33
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On Tue, Jan 12, 2021 at 6:43 PM Huang Ying [off-list ref] 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