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[85.239.239.233]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2dd2cfce707sm3587205ad.55.2026.09.10.19.00.55 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 10 Sep 2026 19:00:58 -0700 (PDT) From: Lian Wang To: SJ Park Cc: Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH REPOST 4/5] mm/damon/vaddr: extend apply_probes() for hugetlb Date: Fri, 11 Sep 2026 10:00:36 +0800 Message-ID: <20260911020044.37520-1-lianux.mm@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260909140408.104699-5-sj@kernel.org> References: <20260909140408.104699-1-sj@kernel.org> <20260909140408.104699-5-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Wed, 9 Sep 2026 07:04:06 -0700, SJ Park wrote: > DAMON virtual address space operation set(vaddr) does not support > hugetlb pages in apply_probes. Extend it for hugetlb pages. This looks good to me. The new callback follows the existing vaddr hugetlb walk, takes the huge PTE lock, and keeps a folio reference while the probes inspect it. Reviewed-by: Lian Wang Thanks, Lian