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Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pYbnY-0047NX-Qn; Sun, 05 Mar 2023 00:00:20 +0000 Date: Sun, 5 Mar 2023 00:00:20 +0000 From: Matthew Wilcox To: SeongJae Park Cc: Andrew Morton , Kefeng Wang , damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH 1/2] mm/damon/paddr: fix folio_size() call after folio_put() in damon_pa_young() Message-ID: References: <20230304193949.296391-1-sj@kernel.org> <20230304193949.296391-2-sj@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230304193949.296391-2-sj@kernel.org> X-Rspam-User: X-Rspamd-Queue-Id: 895652000A X-Rspamd-Server: rspam01 X-Stat-Signature: 4xhq68zs34ufh3k6si48ac97d8zigdfe X-HE-Tag: 1677974445-39804 X-HE-Meta: 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 a/x7gq11 JetuT+QvPvX3+AWdU1axyoKzabzrXPwncLPScPkF230W/sIPB8yTbBYp5lajifHdsk19jR+Jk4QeHQ4DHtWCXVuDR2gdmTylfDe+XhHb/ljYBjRK/Xicyw1MwmD/aFagpeWpXli3oLTwg79Gb12U1s1+KrP8rHd6H/hLXIrqRnASE2nqvQhgYNGj6wvCCTWZtR7oTVcUl7TjV7mrtIwZ2lK6o/L6L8ZIAYcnbMBadzHVZuXvRp00mOOt+cCCYGsxtrf2Vj47LgbulWXV6KHRCLY1ihCqn6nja5jUh+fZuv66clUj9q9d447J8FfbHZSjAJQtk X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Sat, Mar 04, 2023 at 07:39:48PM +0000, SeongJae Park wrote: > damon_pa_young() is accessing a folio via folio_size() after folio_put() > for the folio has invoked. Fix it. > > Fixes: 397b0c3a584b ("mm/damon/paddr: remove folio_sz field from damon_pa_access_chk_result") > Cc: # 6.3.x > Signed-off-by: SeongJae Park Reviewed-by: Matthew Wilcox (Oracle)