Hi Nhat, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on shuah-kselftest/next] [also build test WARNING on shuah-kselftest/fixes tip/x86/asm akpm-mm/mm-everything linus/master v6.1 next-20221216] [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/Nhat-Pham/cachestat-a-new-syscall-for-page-cache-state-of-files/20221217-032254 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next patch link: https://lore.kernel.org/r/20221216192149.3902877-4-nphamcs%40gmail.com patch subject: [PATCH v4 3/4] cachestat: implement cachestat syscall config: alpha-randconfig-r036-20221216 compiler: alpha-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/85fdb04584b3d9a3b90d2c63794ec65e8d996b18 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Nhat-Pham/cachestat-a-new-syscall-for-page-cache-state-of-files/20221217-032254 git checkout 85fdb04584b3d9a3b90d2c63794ec65e8d996b18 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=alpha olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=alpha SHELL=/bin/bash mm/damon/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from include/uapi/linux/mman.h:5, from include/linux/fs.h:49, from include/linux/highmem.h:5, from mm/damon/vaddr.c:11: >> arch/alpha/include/uapi/asm/mman.h:15: warning: "MAP_FIXED" redefined 15 | #define MAP_FIXED 0x100 /* Interpret addr exactly */ | In file included from mm/damon/vaddr.c:10: include/uapi/asm-generic/mman-common.h:22: note: this is the location of the previous definition 22 | #define MAP_FIXED 0x10 /* Interpret addr exactly */ | >> arch/alpha/include/uapi/asm/mman.h:16: warning: "MAP_ANONYMOUS" redefined 16 | #define MAP_ANONYMOUS 0x10 /* don't use a file */ | include/uapi/asm-generic/mman-common.h:23: note: this is the location of the previous definition 23 | #define MAP_ANONYMOUS 0x20 /* don't use a file */ | >> arch/alpha/include/uapi/asm/mman.h:29: warning: "MAP_POPULATE" redefined 29 | #define MAP_POPULATE 0x20000 /* populate (prefault) pagetables */ | include/uapi/asm-generic/mman-common.h:26: note: this is the location of the previous definition 26 | #define MAP_POPULATE 0x008000 /* populate (prefault) pagetables */ | >> arch/alpha/include/uapi/asm/mman.h:30: warning: "MAP_NONBLOCK" redefined 30 | #define MAP_NONBLOCK 0x40000 /* do not block on IO */ | include/uapi/asm-generic/mman-common.h:27: note: this is the location of the previous definition 27 | #define MAP_NONBLOCK 0x010000 /* do not block on IO */ | >> arch/alpha/include/uapi/asm/mman.h:31: warning: "MAP_STACK" redefined 31 | #define MAP_STACK 0x80000 /* give out an address that is best suited for process/thread stacks */ | include/uapi/asm-generic/mman-common.h:28: note: this is the location of the previous definition 28 | #define MAP_STACK 0x020000 /* give out an address that is best suited for process/thread stacks */ | >> arch/alpha/include/uapi/asm/mman.h:32: warning: "MAP_HUGETLB" redefined 32 | #define MAP_HUGETLB 0x100000 /* create a huge page mapping */ | include/uapi/asm-generic/mman-common.h:29: note: this is the location of the previous definition 29 | #define MAP_HUGETLB 0x040000 /* create a huge page mapping */ | >> arch/alpha/include/uapi/asm/mman.h:33: warning: "MAP_FIXED_NOREPLACE" redefined 33 | #define MAP_FIXED_NOREPLACE 0x200000/* MAP_FIXED which doesn't unmap underlying mapping */ | include/uapi/asm-generic/mman-common.h:31: note: this is the location of the previous definition 31 | #define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED which doesn't unmap underlying mapping */ | >> arch/alpha/include/uapi/asm/mman.h:36: warning: "MS_SYNC" redefined 36 | #define MS_SYNC 2 /* synchronous memory sync */ | include/uapi/asm-generic/mman-common.h:43: note: this is the location of the previous definition 43 | #define MS_SYNC 4 /* synchronous memory sync */ | >> arch/alpha/include/uapi/asm/mman.h:37: warning: "MS_INVALIDATE" redefined 37 | #define MS_INVALIDATE 4 /* invalidate the caches */ | include/uapi/asm-generic/mman-common.h:42: note: this is the location of the previous definition 42 | #define MS_INVALIDATE 2 /* invalidate the caches */ | >> arch/alpha/include/uapi/asm/mman.h:50: warning: "MADV_DONTNEED" redefined 50 | #define MADV_DONTNEED 6 /* don't need these pages */ | include/uapi/asm-generic/mman-common.h:49: note: this is the location of the previous definition 49 | #define MADV_DONTNEED 4 /* don't need these pages */ | vim +/MAP_FIXED +15 arch/alpha/include/uapi/asm/mman.h ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 12 746c9398f5ac2b arch/alpha/include/uapi/asm/mman.h Michael S. Tsirkin 2019-02-08 13 /* 0x01 - 0x03 are defined in linux/mman.h */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 14 #define MAP_TYPE 0x0f /* Mask for type of mapping (OSF/1 is _wrong_) */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 @15 #define MAP_FIXED 0x100 /* Interpret addr exactly */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 @16 #define MAP_ANONYMOUS 0x10 /* don't use a file */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 17 ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 18 /* not used by linux, but here to make sure we don't clash with OSF/1 defines */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 19 #define _MAP_HASSEMAPHORE 0x0200 ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 20 #define _MAP_INHERIT 0x0400 ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 21 #define _MAP_UNALIGNED 0x0800 ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 22 ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 23 /* These are linux-specific */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 24 #define MAP_GROWSDOWN 0x01000 /* stack-like segment */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 25 #define MAP_DENYWRITE 0x02000 /* ETXTBSY */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 26 #define MAP_EXECUTABLE 0x04000 /* mark it as an executable */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 27 #define MAP_LOCKED 0x08000 /* lock the mapping */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 28 #define MAP_NORESERVE 0x10000 /* don't check for reservations */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 @29 #define MAP_POPULATE 0x20000 /* populate (prefault) pagetables */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 @30 #define MAP_NONBLOCK 0x40000 /* do not block on IO */ 90f72aa58bbf07 arch/alpha/include/asm/mman.h Arnd Bergmann 2009-09-21 @31 #define MAP_STACK 0x80000 /* give out an address that is best suited for process/thread stacks */ 90f72aa58bbf07 arch/alpha/include/asm/mman.h Arnd Bergmann 2009-09-21 @32 #define MAP_HUGETLB 0x100000 /* create a huge page mapping */ a4ff8e8620d3f4 arch/alpha/include/uapi/asm/mman.h Michal Hocko 2018-04-10 @33 #define MAP_FIXED_NOREPLACE 0x200000/* MAP_FIXED which doesn't unmap underlying mapping */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 34 ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 35 #define MS_ASYNC 1 /* sync memory asynchronously */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 @36 #define MS_SYNC 2 /* synchronous memory sync */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 @37 #define MS_INVALIDATE 4 /* invalidate the caches */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 38 ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 39 #define MCL_CURRENT 8192 /* lock all currently mapped pages */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 40 #define MCL_FUTURE 16384 /* lock all additions to address space */ b0f205c2a3082d arch/alpha/include/uapi/asm/mman.h Eric B Munson 2015-11-05 41 #define MCL_ONFAULT 32768 /* lock all pages that are faulted in */ b0f205c2a3082d arch/alpha/include/uapi/asm/mman.h Eric B Munson 2015-11-05 42 b0f205c2a3082d arch/alpha/include/uapi/asm/mman.h Eric B Munson 2015-11-05 43 #define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 44 ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 45 #define MADV_NORMAL 0 /* no further special treatment */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 46 #define MADV_RANDOM 1 /* expect random page references */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 47 #define MADV_SEQUENTIAL 2 /* expect sequential page references */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 48 #define MADV_WILLNEED 3 /* will need these pages */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 49 #define MADV_SPACEAVAIL 5 /* ensure resources are available */ ^1da177e4c3f41 include/asm-alpha/mman.h Linus Torvalds 2005-04-16 @50 #define MADV_DONTNEED 6 /* don't need these pages */ 5f6164f3092832 include/asm-alpha/mman.h Michael S. Tsirkin 2006-02-15 51 -- 0-DAY CI Kernel Test Service https://01.org/lkp