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charset=us-ascii Content-Disposition: inline In-Reply-To: <20251017141536.577466-1-kirill@shutemov.name> X-Rspamd-Server: rspam01 X-Stat-Signature: 4srbjqqkxmj68wzmxuigkgqd7bfjsyyi X-Rspam-User: X-Rspamd-Queue-Id: 68FF016000A X-HE-Tag: 1760759693-936923 X-HE-Meta: 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 EWxQjDtG /Ge8NGbr85V0firWxlEN/qEyrLPY8nPD8/TMQ9oEMdThpkP2Qu4SAFz174gl2GEY5aLeAWfudzJXX79t73pXR2PQcBRR+F7vVj4nfep6ELxjMooX7bMkf4H+Q/KuMGZExj7A1kpWTeNiLHLcAWkrbLWskBiRh6Idwx3DlgAaZq6Ma+JdByW0zdM7A7zDhAcFT203xDYBR+N9Sm5JECzYlL05x4WaFshDpqJF5yHfG4WJlzwGuhL9emrB6CXw1vaKGnY/bqCzhOGwUDdrBOB2/BcYVROIyjdyFD+BYZgoSHBuebGm/9s76xt1klHd5khoElUPF6N4Un1GcgDs= 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: Hi Kiryl, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Kiryl-Shutsemau/mm-filemap-Implement-fast-short-reads/20251017-221655 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20251017141536.577466-1-kirill%40shutemov.name patch subject: [PATCH] mm/filemap: Implement fast short reads config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20251018/202510181107.YiEpGvU3-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251018/202510181107.YiEpGvU3-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/202510181107.YiEpGvU3-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/filemap.c: In function 'filemap_read_fast': >> mm/filemap.c:2787:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=] 2787 | } | ^ vim +2787 mm/filemap.c 2752 2753 static noinline bool filemap_read_fast(struct kiocb *iocb, struct iov_iter *iter, 2754 ssize_t *already_read) 2755 { 2756 struct address_space *mapping = iocb->ki_filp->f_mapping; 2757 struct file_ra_state *ra = &iocb->ki_filp->f_ra; 2758 char buffer[FAST_READ_BUF_SIZE]; 2759 size_t count; 2760 2761 if (ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE) 2762 return false; 2763 2764 if (iov_iter_count(iter) > sizeof(buffer)) 2765 return false; 2766 2767 count = iov_iter_count(iter); 2768 2769 /* Let's see if we can just do the read under RCU */ 2770 rcu_read_lock(); 2771 count = filemap_read_fast_rcu(mapping, iocb->ki_pos, buffer, count); 2772 rcu_read_unlock(); 2773 2774 if (!count) 2775 return false; 2776 2777 count = copy_to_iter(buffer, count, iter); 2778 if (unlikely(!count)) 2779 return false; 2780 2781 iocb->ki_pos += count; 2782 ra->prev_pos = iocb->ki_pos; 2783 file_accessed(iocb->ki_filp); 2784 *already_read += count; 2785 2786 return !iov_iter_count(iter); > 2787 } 2788 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki