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Howlett" , Wei Yang , akpm@linux-foundation.org, maple-tree@lists.infradead.org, linux-mm@kvack.org Subject: Re: [PATCH 0/7] spanning write related cleanup Message-ID: <20250117054942.w6vgrllnaasjaww3@master> Reply-To: Wei Yang References: <20241127012753.3393-1-richard.weiyang@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170113 (1.7.2) X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 4D1DD14000C X-Stat-Signature: epqpcgwnguoj3fauiob5197ff16f14ae X-Rspam-User: X-HE-Tag: 1737092988-465682 X-HE-Meta: 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 0Wwk0n2D 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000081, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Nov 27, 2024 at 08:31:13AM -0500, Liam R. Howlett wrote: >* Wei Yang [241126 20:28]: >> Here is some cleanup related to spanning write. > >None of these fix anything, but do fiddle with code that's pretty >critical to the kernel. Most of the changes will be immeasurable in >change but carry risk to causing subtle changes. > >Some are simple removal of returns that aren't used while others change >things because you think they are probably the equivalent. This seems >like unnecessary chrun at this point. I'm all for efficient code but >this is getting a bit much, some of these are just preference of what to >use that will already exist in the cpu cache. > >I'll get back to you when I dig through them, as some need a deeper look >for sure. > >Liam > Hi, Liam Would you mind taking a look when you have time? -- Wei Yang Help you, Help me