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b=Ko3GXstsM7IxbccEWEVNpJtIUBpqwxPArXm3YDYSnQC5oQ+CoOMRS6TLtPunJCGOL kMjaKrnvz3LzF/qU1/7j9hXCoOrjU8WMFo5D4dpZPeDKz29YkicMxJ+23W9QBb222Z opWK88iI0M1fc5YhIksujtt6TKMzk2viiuT2MgoBq6XUS72X4DTFnjrAOp5c66KhT5 +rJvaUrp5WZPB/Rd6rSqc+xKQDorBFUyreXDJc/86GviYeLj5jQdNlr+ixJ0UYjJB9 f8RXg3oH8xuCxFSagTkGm8j+to/KHa/zJfihhtUxLTELwpT8lGpoyGIUsr8pJ1PwN8 Y2cJxkNGqJlIg== From: SeongJae Park To: Gutierrez Asier Cc: SeongJae Park , artem.kuzin@huawei.com, stepanov.anatoly@huawei.com, wangkefeng.wang@huawei.com, yanquanmin1@huawei.com, zuoze1@huawei.com, damon@lists.linux.dev, akpm@linux-foundation.org, ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, corbet@lwn.net, skhan@linuxfoundation.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 1/1] Docs/mm/damon: Document DAMON actions when TRANSPARENT_HUGEPAGE is off Date: Mon, 16 Mar 2026 08:13:52 -0700 Message-ID: <20260316151353.100406-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <224a29a1-13cb-41aa-8736-aebe1023fb7d@huawei-partners.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 027D4A0006 X-Rspamd-Server: rspam07 X-Stat-Signature: 3tk59ym4qrb6rr64t9f4p3syqoh95wed X-Rspam-User: X-HE-Tag: 1773674041-497254 X-HE-Meta: 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 3GkNeugv xgb7sz2q00vrRey8M9RCPDnGHzrxTyMJoJ7LTwUv94rVI18Je35EKcXPyE7ddYZc6kM+xAyH1FrVnx/wP9sP/qxQ93zSLxOX/0OX1wap2BBWU45eNp/x278O5hHvjcPYMjAShCLeez4h2LyvOh3tOAzayVEvvzTIxIuEM7RIZvzYedgVwF8sQ83Hbe1burNmhLWgbF8Io6KW8sI8hWo57NRGp3s6b3aKNc/9pN04CZJtx/+l+Fv+dGUoi7ibgJOkt0jq+/k6vqbbDZDFCbdRrMlmlXf/EWUnBHDKTI/HagqqtOv9jsEF691DhUUAO88YaCUaH5hie1yM3OxHEOPHLCfWaZg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 16 Mar 2026 17:56:55 +0300 Gutierrez Asier wrote: > Hi SJ, > > On 3/16/2026 5:48 PM, SeongJae Park wrote: > > Hello Asier, > > > > > > Thank you for sending this patch. :) > > > > On Mon, 16 Mar 2026 14:08:21 +0000 wrote: > > > >> From: Asier Gutierrez > >> > >> MADV_HUGEPAGE and MADV_NOHUGEPAGE are guarded and they > >> are not available when compiling the kernel without TRANSPARENT_HUGEPAGE > >> option. The DAMON behaviour is to silently fail[1] in when DAMOS_HUGEPAGE or > > > > checkpatch.pl shows a warning for the above line: > > > > WARNING: Prefer a maximum 75 chars per line (possible unwrapped commit description?) > > #12: > > option. The DAMON behaviour is to silently fail[1] in when DAMOS_HUGEPAGE or > > Yes, this is due to the link. I tried to keep this patch compact, without a > cover letter. I will submit a new version without the link. The above warning is not for the link. After wrapping the line, however, checkpatch does warn the link line like below. WARNING: Prefer a maximum 75 chars per line (possible unwrapped commit description?) #13: [1]: https://lore.kernel.org/damon/66131775-180b-4b9f-b7ce-61a3e077b6e6@huawei-partners.com/T/#m278d3c9bbedcceaf2efa51e3dc7b40a40654e51c But, it should be ok to just ignore the warning for the link line. So, please wrap the line, but keep the link. Thanks, SJ [...]