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Date: Wed, 16 Nov 2022 19:55:01 +0800
From: kernel test robot <lkp@...el.com>
To: Nhat Pham <nphamcs@...il.com>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, hannes@...xchg.org
Subject: Re: [PATCH 3/4] cachestat: implement cachestat syscall
Hi Nhat,
I love your patch! Perhaps something to improve:
[auto build test WARNING on shuah-kselftest/next]
[also build test WARNING on shuah-kselftest/fixes tip/x86/asm arnd-asm-generic/master linus/master v6.1-rc5 next-20221115]
[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/20221116-023042
base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next
patch link: https://lore.kernel.org/r/20221115182901.2755368-4-nphamcs%40gmail.com
patch subject: [PATCH 3/4] cachestat: implement cachestat syscall
config: m68k-allyesconfig
compiler: m68k-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/e0d55eece256958cfaec0dd2842bf0edced26150
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/20221116-023042
git checkout e0d55eece256958cfaec0dd2842bf0edced26150
# 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=m68k SHELL=/bin/bash drivers/macintosh/ prepare
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
>> <stdin>:1565:2: warning: #warning syscall cachestat not implemented [-Wcpp]
--
In file included from drivers/macintosh/via-pmu.c:46:
>> include/linux/syscalls.h:1060:16: warning: 'struct cachestat' declared inside parameter list will not be visible outside of this definition or declaration
1060 | struct cachestat __user *ret_cstat);
| ^~~~~~~~~
--
>> <stdin>:1565:2: warning: #warning syscall cachestat not implemented [-Wcpp]
--
>> <stdin>:1565:2: warning: #warning syscall cachestat not implemented [-Wcpp]
vim +1060 include/linux/syscalls.h
903
904 /* mm/, CONFIG_MMU only */
905 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
906 asmlinkage long sys_swapoff(const char __user *specialfile);
907 asmlinkage long sys_mprotect(unsigned long start, size_t len,
908 unsigned long prot);
909 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
910 asmlinkage long sys_mlock(unsigned long start, size_t len);
911 asmlinkage long sys_munlock(unsigned long start, size_t len);
912 asmlinkage long sys_mlockall(int flags);
913 asmlinkage long sys_munlockall(void);
914 asmlinkage long sys_mincore(unsigned long start, size_t len,
915 unsigned char __user * vec);
916 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
917 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
918 size_t vlen, int behavior, unsigned int flags);
919 asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
920 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
921 unsigned long prot, unsigned long pgoff,
922 unsigned long flags);
923 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
924 unsigned long mode,
925 const unsigned long __user *nmask,
926 unsigned long maxnode,
927 unsigned flags);
928 asmlinkage long sys_get_mempolicy(int __user *policy,
929 unsigned long __user *nmask,
930 unsigned long maxnode,
931 unsigned long addr, unsigned long flags);
932 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
933 unsigned long maxnode);
934 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
935 const unsigned long __user *from,
936 const unsigned long __user *to);
937 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
938 const void __user * __user *pages,
939 const int __user *nodes,
940 int __user *status,
941 int flags);
942
943 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
944 siginfo_t __user *uinfo);
945 asmlinkage long sys_perf_event_open(
946 struct perf_event_attr __user *attr_uptr,
947 pid_t pid, int cpu, int group_fd, unsigned long flags);
948 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
949 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
950 unsigned int vlen, unsigned flags,
951 struct __kernel_timespec __user *timeout);
952 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
953 unsigned int vlen, unsigned flags,
954 struct old_timespec32 __user *timeout);
955
956 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
957 int options, struct rusage __user *ru);
958 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
959 const struct rlimit64 __user *new_rlim,
960 struct rlimit64 __user *old_rlim);
961 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
962 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
963 u64 mask, int fd,
964 const char __user *pathname);
965 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
966 struct file_handle __user *handle,
967 int __user *mnt_id, int flag);
968 asmlinkage long sys_open_by_handle_at(int mountdirfd,
969 struct file_handle __user *handle,
970 int flags);
971 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
972 struct __kernel_timex __user *tx);
973 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
974 struct old_timex32 __user *tx);
975 asmlinkage long sys_syncfs(int fd);
976 asmlinkage long sys_setns(int fd, int nstype);
977 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
978 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
979 unsigned int vlen, unsigned flags);
980 asmlinkage long sys_process_vm_readv(pid_t pid,
981 const struct iovec __user *lvec,
982 unsigned long liovcnt,
983 const struct iovec __user *rvec,
984 unsigned long riovcnt,
985 unsigned long flags);
986 asmlinkage long sys_process_vm_writev(pid_t pid,
987 const struct iovec __user *lvec,
988 unsigned long liovcnt,
989 const struct iovec __user *rvec,
990 unsigned long riovcnt,
991 unsigned long flags);
992 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
993 unsigned long idx1, unsigned long idx2);
994 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
995 asmlinkage long sys_sched_setattr(pid_t pid,
996 struct sched_attr __user *attr,
997 unsigned int flags);
998 asmlinkage long sys_sched_getattr(pid_t pid,
999 struct sched_attr __user *attr,
1000 unsigned int size,
1001 unsigned int flags);
1002 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
1003 int newdfd, const char __user *newname,
1004 unsigned int flags);
1005 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
1006 void __user *uargs);
1007 asmlinkage long sys_getrandom(char __user *buf, size_t count,
1008 unsigned int flags);
1009 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
1010 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1011 asmlinkage long sys_execveat(int dfd, const char __user *filename,
1012 const char __user *const __user *argv,
1013 const char __user *const __user *envp, int flags);
1014 asmlinkage long sys_userfaultfd(int flags);
1015 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
1016 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
1017 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
1018 int fd_out, loff_t __user *off_out,
1019 size_t len, unsigned int flags);
1020 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
1021 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1022 rwf_t flags);
1023 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
1024 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1025 rwf_t flags);
1026 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
1027 unsigned long prot, int pkey);
1028 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
1029 asmlinkage long sys_pkey_free(int pkey);
1030 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
1031 unsigned mask, struct statx __user *buffer);
1032 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
1033 int flags, uint32_t sig);
1034 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
1035 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
1036 int to_dfd, const char __user *to_path,
1037 unsigned int ms_flags);
1038 asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
1039 unsigned int flags,
1040 struct mount_attr __user *uattr, size_t usize);
1041 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
1042 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
1043 const void __user *value, int aux);
1044 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
1045 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1046 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1047 siginfo_t __user *info,
1048 unsigned int flags);
1049 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
1050 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
1051 size_t size, __u32 flags);
1052 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
1053 const void __user *rule_attr, __u32 flags);
1054 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
1055 asmlinkage long sys_memfd_secret(unsigned int flags);
1056 asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
1057 unsigned long home_node,
1058 unsigned long flags);
1059 asmlinkage long sys_cachestat(unsigned int fd, off_t off, size_t len,
> 1060 struct cachestat __user *ret_cstat);
1061
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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