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J . Alumbaugh" , "Aneesh Kumar K.V" Subject: Re: [PATCH 3/3] mm/lru_gen: Don't build multi-gen LRU page table walk code on architecture not supported Message-ID: <202306211018.fodsNZaR-lkp@intel.com> References: <20230613120047.149573-3-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230613120047.149573-3-aneesh.kumar@linux.ibm.com> X-Rspamd-Queue-Id: 6F44B1C0005 X-Rspam-User: X-Stat-Signature: ifcnje6hecsb6x4n4qgr7hga916nuwrt X-Rspamd-Server: rspam03 X-HE-Tag: 1687314475-369156 X-HE-Meta: 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 ArNiKVET QfZj80zXBeh6aeEebZgs9cteZYN3rdOwLd/fZgz7ifViDeqVvK3lj3rbU4WrtsjjGDLQdVA9Oo3j72Nk7PjllflBOf1evwqf7mRDh1VELs4d2KQVzEbNkVZJ9GtlCIuJdtq10eD49MQlPumUn2CZ5iWcg6FWyFU9lJhzgrYesk2GnVi7aB47hKSGaV37uElFVoSf8/iHJ9kbyQKjP6tx2mfCuLKXJ0zsXTpmQyPlK4JpNdDrGH3lVg1WYSFdl8T1sRuWkmjRgXytzNM/ehyvimOLqdHCpN4ySXtynGFd+2igBsk6U4GQ+GvVEqU3NXaDou2NeZfU7UbbAzAwSg9Wi+gwNa70fOAp0p+HXSV6jc62alYO8gNlOyUhhsHIMzleLpkJrLSgmJDF+5vaQv+VHEB+aw1/3RBVx6T0wKIINGM4b+l2fKDUVFbbk+Q== 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: Hi Aneesh, kernel test robot noticed the following build warnings: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on linus/master tip/x86/core v6.4-rc7 next-20230620] [cannot apply to akpm-mm/mm-everything] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Aneesh-Kumar-K-V/mm-lru_gen-lru_gen_look_around-simplification/20230613-200408 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core patch link: https://lore.kernel.org/r/20230613120047.149573-3-aneesh.kumar%40linux.ibm.com patch subject: [PATCH 3/3] mm/lru_gen: Don't build multi-gen LRU page table walk code on architecture not supported config: alpha-allmodconfig (https://download.01.org/0day-ci/archive/20230621/202306211018.fodsNZaR-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230621/202306211018.fodsNZaR-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202306211018.fodsNZaR-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/vmscan.c:4564:6: warning: no previous prototype for '__try_to_inc_max_seq' [-Wmissing-prototypes] 4564 | bool __try_to_inc_max_seq(struct lruvec *lruvec, unsigned long max_seq, | ^~~~~~~~~~~~~~~~~~~~ vim +/__try_to_inc_max_seq +4564 mm/vmscan.c 4559 4560 /* 4561 * inc_max_seq can drop the lru_lock in between. So use a waitqueue seq_update_progress 4562 * to allow concurrent access. 4563 */ > 4564 bool __try_to_inc_max_seq(struct lruvec *lruvec, unsigned long max_seq, 4565 bool can_swap, bool force_scan) 4566 { 4567 bool success = false; 4568 struct lru_gen_folio *lrugen = &lruvec->lrugen; 4569 4570 VM_WARN_ON_ONCE(max_seq > READ_ONCE(lrugen->max_seq)); 4571 4572 /* see the comment in iterate_mm_list() */ 4573 if (lruvec->seq_update_progress) 4574 success = false; 4575 else { 4576 spin_lock_irq(&lruvec->lru_lock); 4577 4578 if (max_seq != lrugen->max_seq) 4579 goto done; 4580 4581 if (lruvec->seq_update_progress) 4582 goto done; 4583 4584 success = true; 4585 lruvec->seq_update_progress = true; 4586 done: 4587 spin_unlock_irq(&lruvec->lru_lock); 4588 } 4589 4590 if (success) 4591 inc_max_seq(lruvec, can_swap, force_scan); 4592 4593 return success; 4594 } 4595 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki