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h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Uu/P4OIRNL63avNQFUualVWA3ANWRe6rGU1tEW52kAsy3mssgrwHsPqNcVO7tqX7M 3vZivTBTrTm3faFZsdpzzqigGWyk2/fTQTp7xncuOGzf4Wi4iNnjjjmI6Nfys7fZyS V8/R/kN744EiRsi9cKutwFaex1J83GbfqkWmq5T8nH1bUMNHmkgzIUHuTf4V5h/fxI RthXtMgGZFZB/qUNW83YLYt5bo6LUx3Z38Hb2uduyhoBX8a9Zj5aiGpCeDYI2XIS30 YnWP4UAJarDSQExdRiMpvzcfcM3eesPzQVCJtY+BmrtSK2iV0ny5GYuoUYMi3TrgTK u6KFbPVflf9dg== Date: Wed, 26 Aug 2026 09:23:13 +0100 From: "Lorenzo Stoakes (ARM)" To: "David Hildenbrand (Arm)" Cc: Vernon Yang , akpm@linux-foundation.org, nico.pache@linux.dev, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev, usama.arif@linux.dev, zokeefe@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, stable@vger.kernel.org, Vernon Yang Subject: Re: [PATCH v3 3/3] mm: khugepaged: fix folio is used after folio_put/unlock() Message-ID: References: <20260824092935.73892-1-vernon2gm@gmail.com> <20260824092935.73892-4-vernon2gm@gmail.com> <77412338-b54c-455b-84da-1f39db641c90@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <77412338-b54c-455b-84da-1f39db641c90@kernel.org> X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 74169160009 X-Stat-Signature: 85e3qurx8zfadc9r1ts8syzkxxf6cda6 X-HE-Tag: 1787732600-848691 X-HE-Meta: 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 JbG0t5d6 qdZgbAlYoxdCzfmVZlv8jajqh+GrwrMZ0f0SQ1/Y+zKfzjbHwqrknNrcltwzGsSSuL/5ZYICHQhe3/Uj0xyjF1AwdwiA8+/K/QxwRsrxHr/glPE/4gWgeFaboF/XT/p/TB8Zlz9NE0NpvGHLBetOcvmSsQ+q0XqK4kT0W5f1K+4vL9HJlA6VsIFICSy6+C+NQSpG6RhICKyEHclgbiBTJBtyL62n+vhdcDbICuziROF9GnnB2AUbS3FlCJH1IqCpekknH0SLExwu+T2Ywuv8WctrBoiQlExJAvaGZVWMkZ8Ky6/8= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Aug 26, 2026 at 10:14:43AM +0200, David Hildenbrand (Arm) wrote: > Note that the monstrosity we called pfn_t no longer exits. :) Oops! :) Fair enough. I mistook it for one of the various benign typedef unsigned long xxx_t decls and forgot (repressed?) the horror show elements of struct { ... } with flags and what not. Vernon - please disregard the pfn_t feedback, obviously :) > > -- > Cheers, > > David -- Cheers, Lorenzo