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Peter Anvin" , Yu-cheng Yu References: <20250506003811.92405-1-riel@surriel.com> <20250506003811.92405-8-riel@surriel.com> <03E5F4D7-3E3F-4809-87FE-6BD0B792E90F@gmail.com> <09b6eb12ede47b2e2be69bdd68a8732104b26eb0.camel@surriel.com> From: Dave Hansen Content-Language: en-US Autocrypt: addr=dave.hansen@intel.com; keydata= xsFNBE6HMP0BEADIMA3XYkQfF3dwHlj58Yjsc4E5y5G67cfbt8dvaUq2fx1lR0K9h1bOI6fC oAiUXvGAOxPDsB/P6UEOISPpLl5IuYsSwAeZGkdQ5g6m1xq7AlDJQZddhr/1DC/nMVa/2BoY 2UnKuZuSBu7lgOE193+7Uks3416N2hTkyKUSNkduyoZ9F5twiBhxPJwPtn/wnch6n5RsoXsb ygOEDxLEsSk/7eyFycjE+btUtAWZtx+HseyaGfqkZK0Z9bT1lsaHecmB203xShwCPT49Blxz VOab8668QpaEOdLGhtvrVYVK7x4skyT3nGWcgDCl5/Vp3TWA4K+IofwvXzX2ON/Mj7aQwf5W iC+3nWC7q0uxKwwsddJ0Nu+dpA/UORQWa1NiAftEoSpk5+nUUi0WE+5DRm0H+TXKBWMGNCFn c6+EKg5zQaa8KqymHcOrSXNPmzJuXvDQ8uj2J8XuzCZfK4uy1+YdIr0yyEMI7mdh4KX50LO1 pmowEqDh7dLShTOif/7UtQYrzYq9cPnjU2ZW4qd5Qz2joSGTG9eCXLz5PRe5SqHxv6ljk8mb ApNuY7bOXO/A7T2j5RwXIlcmssqIjBcxsRRoIbpCwWWGjkYjzYCjgsNFL6rt4OL11OUF37wL QcTl7fbCGv53KfKPdYD5hcbguLKi/aCccJK18ZwNjFhqr4MliQARAQABzUVEYXZpZCBDaHJp c3RvcGhlciBIYW5zZW4gKEludGVsIFdvcmsgQWRkcmVzcykgPGRhdmUuaGFuc2VuQGludGVs LmNvbT7CwXgEEwECACIFAlQ+9J0CGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEGg1 lTBwyZKwLZUP/0dnbhDc229u2u6WtK1s1cSd9WsflGXGagkR6liJ4um3XCfYWDHvIdkHYC1t MNcVHFBwmQkawxsYvgO8kXT3SaFZe4ISfB4K4CL2qp4JO+nJdlFUbZI7cz/Td9z8nHjMcWYF IQuTsWOLs/LBMTs+ANumibtw6UkiGVD3dfHJAOPNApjVr+M0P/lVmTeP8w0uVcd2syiaU5jB aht9CYATn+ytFGWZnBEEQFnqcibIaOrmoBLu2b3fKJEd8Jp7NHDSIdrvrMjYynmc6sZKUqH2 I1qOevaa8jUg7wlLJAWGfIqnu85kkqrVOkbNbk4TPub7VOqA6qG5GCNEIv6ZY7HLYd/vAkVY E8Plzq/NwLAuOWxvGrOl7OPuwVeR4hBDfcrNb990MFPpjGgACzAZyjdmYoMu8j3/MAEW4P0z F5+EYJAOZ+z212y1pchNNauehORXgjrNKsZwxwKpPY9qb84E3O9KYpwfATsqOoQ6tTgr+1BR CCwP712H+E9U5HJ0iibN/CDZFVPL1bRerHziuwuQuvE0qWg0+0SChFe9oq0KAwEkVs6ZDMB2 P16MieEEQ6StQRlvy2YBv80L1TMl3T90Bo1UUn6ARXEpcbFE0/aORH/jEXcRteb+vuik5UGY 5TsyLYdPur3TXm7XDBdmmyQVJjnJKYK9AQxj95KlXLVO38lczsFNBFRjzmoBEACyAxbvUEhd GDGNg0JhDdezyTdN8C9BFsdxyTLnSH31NRiyp1QtuxvcqGZjb2trDVuCbIzRrgMZLVgo3upr MIOx1CXEgmn23Zhh0EpdVHM8IKx9Z7V0r+rrpRWFE8/wQZngKYVi49PGoZj50ZEifEJ5qn/H Nsp2+Y+bTUjDdgWMATg9DiFMyv8fvoqgNsNyrrZTnSgoLzdxr89FGHZCoSoAK8gfgFHuO54B lI8QOfPDG9WDPJ66HCodjTlBEr/Cwq6GruxS5i2Y33YVqxvFvDa1tUtl+iJ2SWKS9kCai2DR 3BwVONJEYSDQaven/EHMlY1q8Vln3lGPsS11vSUK3QcNJjmrgYxH5KsVsf6PNRj9mp8Z1kIG qjRx08+nnyStWC0gZH6NrYyS9rpqH3j+hA2WcI7De51L4Rv9pFwzp161mvtc6eC/GxaiUGuH BNAVP0PY0fqvIC68p3rLIAW3f97uv4ce2RSQ7LbsPsimOeCo/5vgS6YQsj83E+AipPr09Caj 0hloj+hFoqiticNpmsxdWKoOsV0PftcQvBCCYuhKbZV9s5hjt9qn8CE86A5g5KqDf83Fxqm/ vXKgHNFHE5zgXGZnrmaf6resQzbvJHO0Fb0CcIohzrpPaL3YepcLDoCCgElGMGQjdCcSQ+Ci FCRl0Bvyj1YZUql+ZkptgGjikQARAQABwsFfBBgBAgAJBQJUY85qAhsMAAoJEGg1lTBwyZKw l4IQAIKHs/9po4spZDFyfDjunimEhVHqlUt7ggR1Hsl/tkvTSze8pI1P6dGp2XW6AnH1iayn yRcoyT0ZJ+Zmm4xAH1zqKjWplzqdb/dO28qk0bPso8+1oPO8oDhLm1+tY+cOvufXkBTm+whm +AyNTjaCRt6aSMnA/QHVGSJ8grrTJCoACVNhnXg/R0g90g8iV8Q+IBZyDkG0tBThaDdw1B2l asInUTeb9EiVfL/Zjdg5VWiF9LL7iS+9hTeVdR09vThQ/DhVbCNxVk+DtyBHsjOKifrVsYep WpRGBIAu3bK8eXtyvrw1igWTNs2wazJ71+0z2jMzbclKAyRHKU9JdN6Hkkgr2nPb561yjcB8 sIq1pFXKyO+nKy6SZYxOvHxCcjk2fkw6UmPU6/j/nQlj2lfOAgNVKuDLothIxzi8pndB8Jju KktE5HJqUUMXePkAYIxEQ0mMc8Po7tuXdejgPMwgP7x65xtfEqI0RuzbUioFltsp1jUaRwQZ MTsCeQDdjpgHsj+P2ZDeEKCbma4m6Ez/YWs4+zDm1X8uZDkZcfQlD9NldbKDJEXLIjYWo1PH hYepSffIWPyvBMBTW2W5FRjJ4vLRrJSUoEfJuPQ3vW9Y73foyo/qFoURHO48AinGPZ7PC7TF vUaNOTjKedrqHkaOcqB185ahG2had0xnFsDPlx5y In-Reply-To: <09b6eb12ede47b2e2be69bdd68a8732104b26eb0.camel@surriel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: 3CCC2A0008 X-Rspamd-Server: rspam04 X-Stat-Signature: i1466jchzexu1e4jgmgd4z4zzhdqhnwf X-HE-Tag: 1746545270-293257 X-HE-Meta: U2FsdGVkX18FDeiDWLoLljRNb6B6dDTFS+s6sOUYzoaAWB0dTm+cGmdFYCt/M9/TXM6d5poLU0uRTzg4z1QhRPLulNEhf/OYPJU13QY1pLsCcl2l8q+s8q3LBIIVlACHePu3OeL26uSa9u2O2QMzu+7TrC2N8SYEeURsvWYRdBc+HxMncOdtppnYrTUIqvxanxmaOweCSVLumj+qDC4PvCfgwrXTzfobkRaF8pQFv8zqRZSs6dC/BjMsmMvO70KN4+cHRBNlRk5kM9ziD1SYTI/iA4GVZCZ6Mfp8WdQLn4HHA5Jyt2ZdCZaSnFciA8V1keR/dBh+NXag4ltTHHpkiAlv/Tg29T2/9Dtbv0t6M9SB//c6s6Sp0RUB+gMnGEuKnyGJRmdKh5Dzm9jy840gMyaWlFnIinc3vyovn3LOD4tG7S5uVkhPyUIZyhZm+SyJEGsakpMM4C2w1Lk/GuHJHemZNkVcyt4jCyXeeIUBfoQ+90eLf490whjBuhVqLVbHWFlzMLtfIrhZaTRWylbbEv/SDhnNZH67B18hhJaUfxQ1Z1fyQ+1pLy/jm12tvOABAtfPUYyf5W69jbSDXp+UUIBMquLbbkcq19zqL8ajgqjAalrq4r3LT8CMzv2VqLWOATIH4552i76RgdKe1isFmpvyGkohdUb7tGue2CHm+yiVrqFf7yXNq/YdLpGcp9iorchb2dZO71439ZHQdsRl2hkgXQ07XosYvu83t0/ovD3Tv69sxSpP0qw/qasjah/uwtc+wVCm7WvTrypHk476+F0Qo4tuUSlScAjV9MDL/EsZJOhABKeu3jvUz2WhfgDna59I8pFEPf4OcsrACCCnUcxGcFO50Rhm8QyOBCYR6p8/iBZmGMSFjkxkccM00RqQ4sR/7ilpqV4MSm9WEP0Yv83DHtSqOXET6Qz6Y8BNA8TvumF30cMIr7GhmYUfWxBAa9yn2RsNWO3vH0ymGu8 AMPc7Vv7 cLK0ksQ4h7ypyNV9ncYVr/fVNHzojxh4E35J7yhAZilPfSFgyoRZjDjRFqqTxfGWc10hYnzFIcALXhjwrJXT9KJnFD5iS1BqVItI21A43+rqphZOJGeLKD5EbyUK/o0umuRoK6XsIyGluUlUcWpMo2WFKWxIcpqckuwu/w0cT8HB5xEtel5rtsb4uI+JzRKfsQYGGuAwjnfYVFWZJ91qxxqH2bR7ceIPnQ+Mfa7E6oJFO0zYHINCiiAStwQnr8wGuBSCADSxygkAnjl/ifLIKMkAmvg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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 5/6/25 08:16, Rik van Riel wrote: > I suspect that lock is no longer needed, but maybe > somebody at Intel has a reason why we still do? I just took a quick look at the locking. It doesn't make any sense to me either. I suspect it's just plain not needed.