linux-kernel - Re: [PATCH 1/2] mm/damon/paddr: fix folio_size() call after folio_put() in damon_pa

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Message-ID: <ZAPblL0G6JkekBtU@casper.infradead.org>
Date:   Sun, 5 Mar 2023 00:00:20 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     SeongJae Park <sj@...nel.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        damon@...ts.linux.dev, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 1/2] mm/damon/paddr: fix folio_size() call after
 folio_put() in damon_pa_young()

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: <stable@...r.kernel.org> # 6.3.x
> Signed-off-by: SeongJae Park <sj@...nel.org>

Reviewed-by: Matthew Wilcox (Oracle) <willy@...radead.org>