set_mempolicy2 is an extensible set_mempolicy interface which allows
a user to set the per-task memory policy.
Defined as:
set_mempolicy2(struct mpol_args *args, size_t size, unsigned long flags);
relevant mpol_args fields include the following:
mode: The MPOL_* policy (DEFAULT, INTERLEAVE, etc.)
mode_flags: The MPOL_F_* flags that were previously passed in or'd
into the mode. This was split to hopefully allow future
extensions additional mode/flag space.
pol_nodes: the nodemask to apply for the memory policy
pol_maxnodes: The max number of nodes described by pol_nodes
The usize arg is intended for the user to pass in sizeof(mpol_args)
to allow forward/backward compatibility whenever possible.
The flags argument is intended to future proof the syscall against
future extensions which may require interpreting the arguments in
the structure differently.
Semantics of `set_mempolicy` are otherwise the same as `set_mempolicy`
as of this patch.
Suggested-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Gregory Price <gregory.price@memverge.com>
---
.../admin-guide/mm/numa_memory_policy.rst | 10 ++++++
arch/alpha/kernel/syscalls/syscall.tbl | 1 +
arch/arm/tools/syscall.tbl | 1 +
arch/m68k/kernel/syscalls/syscall.tbl | 1 +
arch/microblaze/kernel/syscalls/syscall.tbl | 1 +
arch/mips/kernel/syscalls/syscall_n32.tbl | 1 +
arch/mips/kernel/syscalls/syscall_o32.tbl | 1 +
arch/parisc/kernel/syscalls/syscall.tbl | 1 +
arch/powerpc/kernel/syscalls/syscall.tbl | 1 +
arch/s390/kernel/syscalls/syscall.tbl | 1 +
arch/sh/kernel/syscalls/syscall.tbl | 1 +
arch/sparc/kernel/syscalls/syscall.tbl | 1 +
arch/x86/entry/syscalls/syscall_32.tbl | 1 +
arch/x86/entry/syscalls/syscall_64.tbl | 1 +
arch/xtensa/kernel/syscalls/syscall.tbl | 1 +
include/linux/syscalls.h | 2 ++
include/uapi/asm-generic/unistd.h | 4 ++-
mm/mempolicy.c | 36 +++++++++++++++++++
18 files changed, 65 insertions(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/mm/numa_memory_policy.rst b/Documentation/admin-guide/mm/numa_memory_policy.rst
index 64c5804dc40f..aabc24db92d3 100644
--- a/Documentation/admin-guide/mm/numa_memory_policy.rst
+++ b/Documentation/admin-guide/mm/numa_memory_policy.rst
@@ -432,6 +432,8 @@ Set [Task] Memory Policy::
long set_mempolicy(int mode, const unsigned long *nmask,
unsigned long maxnode);
+ long set_mempolicy2(struct mpol_args args, size_t size,
+ unsigned long flags);
Set's the calling task's "task/process memory policy" to mode
specified by the 'mode' argument and the set of nodes defined by
@@ -440,6 +442,12 @@ specified by the 'mode' argument and the set of nodes defined by
'mode' argument with the flag (for example: MPOL_INTERLEAVE |
MPOL_F_STATIC_NODES).
+set_mempolicy2() is an extended version of set_mempolicy() capable
+of setting a mempolicy which requires more information than can be
+passed via get_mempolicy(). For example, weighted interleave with
+task-local weights requires a weight array to be passed via the
+'mpol_args->il_weights' argument in the 'struct mpol_args' arg.
+
See the set_mempolicy(2) man page for more details
@@ -498,6 +506,8 @@ Extended Mempolicy Arguments::
The extended mempolicy argument structure is defined to allow the mempolicy
interfaces future extensibility without the need for additional system calls.
+Extended interfaces (set_mempolicy2) use this argument structure.
+
The core arguments (mode, mode_flags, pol_nodes, and pol_maxnodes) apply to
all interfaces relative to their non-extended counterparts. Each additional
field may only apply to specific extended interfaces. See the respective
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index 18c842ca6c32..0dc288a1118a 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -496,3 +496,4 @@
564 common futex_wake sys_futex_wake
565 common futex_wait sys_futex_wait
566 common futex_requeue sys_futex_requeue
+567 common set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index 584f9528c996..50172ec0e1f5 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -470,3 +470,4 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
index 7a4b780e82cb..839d90c535f2 100644
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@@ -456,3 +456,4 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index 5b6a0b02b7de..567c8b883735 100644
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -462,3 +462,4 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index a842b41c8e06..cc0640e16f2f 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -395,3 +395,4 @@
454 n32 futex_wake sys_futex_wake
455 n32 futex_wait sys_futex_wait
456 n32 futex_requeue sys_futex_requeue
+457 n32 set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 525cc54bc63b..f7262fde98d9 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -444,3 +444,4 @@
454 o32 futex_wake sys_futex_wake
455 o32 futex_wait sys_futex_wait
456 o32 futex_requeue sys_futex_requeue
+457 o32 set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index a47798fed54e..e10f0e8bd064 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -455,3 +455,4 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index 7fab411378f2..4f03f5f42b78 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -543,3 +543,4 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 86fec9b080f6..f98dadc2e9df 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -459,3 +459,4 @@
454 common futex_wake sys_futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index 363fae0fe9bf..f47ba9f2d05d 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -459,3 +459,4 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 7bcaa3d5ea44..53fb16616728 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -502,3 +502,4 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index c8fac5205803..4b4dc41b24ee 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -461,3 +461,4 @@
454 i386 futex_wake sys_futex_wake
455 i386 futex_wait sys_futex_wait
456 i386 futex_requeue sys_futex_requeue
+457 i386 set_mempolicy2 sys_set_mempolicy2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 8cb8bf68721c..1bc2190bec27 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -378,6 +378,7 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
#
# Due to a historical design error, certain syscalls are numbered differently
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index 06eefa9c1458..e26dc89399eb 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -427,3 +427,4 @@
454 common futex_wake sys_futex_wake
455 common futex_wait sys_futex_wait
456 common futex_requeue sys_futex_requeue
+457 common set_mempolicy2 sys_set_mempolicy2
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index fd9d12de7e92..3244cd990858 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -822,6 +822,8 @@ asmlinkage long sys_get_mempolicy(int __user *policy,
unsigned long addr, unsigned long flags);
asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
unsigned long maxnode);
+asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size,
+ unsigned long flags);
asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
const unsigned long __user *from,
const unsigned long __user *to);
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 756b013fb832..55486aba099f 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -828,9 +828,11 @@ __SYSCALL(__NR_futex_wake, sys_futex_wake)
__SYSCALL(__NR_futex_wait, sys_futex_wait)
#define __NR_futex_requeue 456
__SYSCALL(__NR_futex_requeue, sys_futex_requeue)
+#define __NR_set_mempolicy2 457
+__SYSCALL(__NR_set_mempolicy2, sys_set_mempolicy2)
#undef __NR_syscalls
-#define __NR_syscalls 457
+#define __NR_syscalls 458
/*
* 32 bit systems traditionally used different
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 446167dcebdc..a56ff02f780e 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1633,6 +1633,42 @@ SYSCALL_DEFINE3(set_mempolicy, int, mode, const unsigned long __user *, nmask,
return kernel_set_mempolicy(mode, nmask, maxnode);
}
+SYSCALL_DEFINE3(set_mempolicy2, struct mpol_args __user *, uargs, size_t, usize,
+ unsigned long, flags)
+{
+ struct mpol_args kargs;
+ struct mempolicy_args margs;
+ int err;
+ nodemask_t policy_nodemask;
+ unsigned long __user *nodes_ptr;
+
+ if (flags)
+ return -EINVAL;
+
+ err = copy_struct_from_user(&kargs, sizeof(kargs), uargs, usize);
+ if (err)
+ return err;
+
+ err = validate_mpol_flags(kargs.mode, &kargs.mode_flags);
+ if (err)
+ return err;
+
+ memset(&margs, '\0', sizeof(margs));
+ margs.mode = kargs.mode;
+ margs.mode_flags = kargs.mode_flags;
+ if (kargs.pol_nodes) {
+ nodes_ptr = u64_to_user_ptr(kargs.pol_nodes);
+ err = get_nodes(&policy_nodemask, nodes_ptr,
+ kargs.pol_maxnodes);
+ if (err)
+ return err;
+ margs.policy_nodes = &policy_nodemask;
+ } else
+ margs.policy_nodes = NULL;
+
+ return do_set_mempolicy(&margs);
+}
+
static int kernel_migrate_pages(pid_t pid, unsigned long maxnode,
const unsigned long __user *old_nodes,
const unsigned long __user *new_nodes)
--
2.39.1Hi Gregory,
kernel test robot noticed the following build warnings:
[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on deller-parisc/for-next powerpc/next powerpc/fixes s390/features jcmvbkbc-xtensa/xtensa-for-next arnd-asm-generic/master linus/master v6.7-rc4]
[cannot apply to tip/x86/asm geert-m68k/for-next geert-m68k/for-linus next-20231208]
[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/Gregory-Price/mm-mempolicy-implement-the-sysfs-based-weighted_interleave-interface/20231209-150314
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20231209065931.3458-9-gregory.price%40memverge.com
patch subject: [PATCH v2 08/11] mm/mempolicy: add set_mempolicy2 syscall
config: arm-lpc32xx_defconfig (https://download.01.org/0day-ci/archive/20231210/202312100245.Jgz5mPhJ-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231210/202312100245.Jgz5mPhJ-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312100245.Jgz5mPhJ-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from kernel/time/time.c:33:
>> include/linux/syscalls.h:825:43: warning: declaration of 'struct mpol_args' will not be visible outside of this function [-Wvisibility]
825 | asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size,
| ^
1 warning generated.
--
In file included from kernel/time/hrtimer.c:30:
>> include/linux/syscalls.h:825:43: warning: declaration of 'struct mpol_args' will not be visible outside of this function [-Wvisibility]
825 | asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size,
| ^
kernel/time/hrtimer.c:1651:7: warning: variable 'expires_in_hardirq' set but not used [-Wunused-but-set-variable]
1651 | bool expires_in_hardirq;
| ^
kernel/time/hrtimer.c:277:20: warning: unused function 'is_migration_base' [-Wunused-function]
277 | static inline bool is_migration_base(struct hrtimer_clock_base *base)
| ^
kernel/time/hrtimer.c:1876:20: warning: unused function '__hrtimer_peek_ahead_timers' [-Wunused-function]
1876 | static inline void __hrtimer_peek_ahead_timers(void)
| ^
4 warnings generated.
vim +825 include/linux/syscalls.h
794
795 /* CONFIG_MMU only */
796 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
797 asmlinkage long sys_swapoff(const char __user *specialfile);
798 asmlinkage long sys_mprotect(unsigned long start, size_t len,
799 unsigned long prot);
800 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
801 asmlinkage long sys_mlock(unsigned long start, size_t len);
802 asmlinkage long sys_munlock(unsigned long start, size_t len);
803 asmlinkage long sys_mlockall(int flags);
804 asmlinkage long sys_munlockall(void);
805 asmlinkage long sys_mincore(unsigned long start, size_t len,
806 unsigned char __user * vec);
807 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
808 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
809 size_t vlen, int behavior, unsigned int flags);
810 asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
811 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
812 unsigned long prot, unsigned long pgoff,
813 unsigned long flags);
814 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
815 unsigned long mode,
816 const unsigned long __user *nmask,
817 unsigned long maxnode,
818 unsigned flags);
819 asmlinkage long sys_get_mempolicy(int __user *policy,
820 unsigned long __user *nmask,
821 unsigned long maxnode,
822 unsigned long addr, unsigned long flags);
823 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
824 unsigned long maxnode);
> 825 asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size,
826 unsigned long flags);
827 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
828 const unsigned long __user *from,
829 const unsigned long __user *to);
830 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
831 const void __user * __user *pages,
832 const int __user *nodes,
833 int __user *status,
834 int flags);
835 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
836 siginfo_t __user *uinfo);
837 asmlinkage long sys_perf_event_open(
838 struct perf_event_attr __user *attr_uptr,
839 pid_t pid, int cpu, int group_fd, unsigned long flags);
840 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
841 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
842 unsigned int vlen, unsigned flags,
843 struct __kernel_timespec __user *timeout);
844 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
845 unsigned int vlen, unsigned flags,
846 struct old_timespec32 __user *timeout);
847 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
848 int options, struct rusage __user *ru);
849 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
850 const struct rlimit64 __user *new_rlim,
851 struct rlimit64 __user *old_rlim);
852 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
853 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
854 u64 mask, int fd,
855 const char __user *pathname);
856 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
857 struct file_handle __user *handle,
858 int __user *mnt_id, int flag);
859 asmlinkage long sys_open_by_handle_at(int mountdirfd,
860 struct file_handle __user *handle,
861 int flags);
862 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
863 struct __kernel_timex __user *tx);
864 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
865 struct old_timex32 __user *tx);
866 asmlinkage long sys_syncfs(int fd);
867 asmlinkage long sys_setns(int fd, int nstype);
868 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
869 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
870 unsigned int vlen, unsigned flags);
871 asmlinkage long sys_process_vm_readv(pid_t pid,
872 const struct iovec __user *lvec,
873 unsigned long liovcnt,
874 const struct iovec __user *rvec,
875 unsigned long riovcnt,
876 unsigned long flags);
877 asmlinkage long sys_process_vm_writev(pid_t pid,
878 const struct iovec __user *lvec,
879 unsigned long liovcnt,
880 const struct iovec __user *rvec,
881 unsigned long riovcnt,
882 unsigned long flags);
883 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
884 unsigned long idx1, unsigned long idx2);
885 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
886 asmlinkage long sys_sched_setattr(pid_t pid,
887 struct sched_attr __user *attr,
888 unsigned int flags);
889 asmlinkage long sys_sched_getattr(pid_t pid,
890 struct sched_attr __user *attr,
891 unsigned int size,
892 unsigned int flags);
893 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
894 int newdfd, const char __user *newname,
895 unsigned int flags);
896 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
897 void __user *uargs);
898 asmlinkage long sys_getrandom(char __user *buf, size_t count,
899 unsigned int flags);
900 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
901 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
902 asmlinkage long sys_execveat(int dfd, const char __user *filename,
903 const char __user *const __user *argv,
904 const char __user *const __user *envp, int flags);
905 asmlinkage long sys_userfaultfd(int flags);
906 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
907 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
908 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
909 int fd_out, loff_t __user *off_out,
910 size_t len, unsigned int flags);
911 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
912 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
913 rwf_t flags);
914 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
915 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
916 rwf_t flags);
917 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
918 unsigned long prot, int pkey);
919 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
920 asmlinkage long sys_pkey_free(int pkey);
921 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
922 unsigned mask, struct statx __user *buffer);
923 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
924 int flags, uint32_t sig);
925 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
926 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
927 int to_dfd, const char __user *to_path,
928 unsigned int ms_flags);
929 asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
930 unsigned int flags,
931 struct mount_attr __user *uattr, size_t usize);
932 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
933 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
934 const void __user *value, int aux);
935 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
936 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
937 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
938 siginfo_t __user *info,
939 unsigned int flags);
940 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
941 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
942 size_t size, __u32 flags);
943 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
944 const void __user *rule_attr, __u32 flags);
945 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
946 asmlinkage long sys_memfd_secret(unsigned int flags);
947 asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
948 unsigned long home_node,
949 unsigned long flags);
950 asmlinkage long sys_cachestat(unsigned int fd,
951 struct cachestat_range __user *cstat_range,
952 struct cachestat __user *cstat, unsigned int flags);
953 asmlinkage long sys_map_shadow_stack(unsigned long addr, unsigned long size, unsigned int flags);
954
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Hi Gregory,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on deller-parisc/for-next powerpc/next powerpc/fixes s390/features jcmvbkbc-xtensa/xtensa-for-next arnd-asm-generic/master linus/master v6.7-rc4]
[cannot apply to tip/x86/asm geert-m68k/for-next geert-m68k/for-linus next-20231208]
[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/Gregory-Price/mm-mempolicy-implement-the-sysfs-based-weighted_interleave-interface/20231209-150314
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20231209065931.3458-9-gregory.price%40memverge.com
patch subject: [PATCH v2 08/11] mm/mempolicy: add set_mempolicy2 syscall
config: arc-alldefconfig (https://download.01.org/0day-ci/archive/20231210/202312100003.aUR6uBvr-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231210/202312100003.aUR6uBvr-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312100003.aUR6uBvr-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
In file included from init/main.c:21:
>> include/linux/syscalls.h:825:43: warning: 'struct mpol_args' declared inside parameter list will not be visible outside of this definition or declaration
825 | asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size,
| ^~~~~~~~~
--
In file included from arch/arc/kernel/sys.c:3:
>> include/linux/syscalls.h:825:43: warning: 'struct mpol_args' declared inside parameter list will not be visible outside of this definition or declaration
825 | asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size,
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: warning: initialized field overwritten [-Woverride-init]
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:29:37: note: in expansion of macro '__SYSCALL'
29 | #define __SC_COMP(_nr, _sys, _comp) __SYSCALL(_nr, _sys)
| ^~~~~~~~~
include/uapi/asm-generic/unistd.h:34:1: note: in expansion of macro '__SC_COMP'
34 | __SC_COMP(__NR_io_setup, sys_io_setup, compat_sys_io_setup)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: note: (near initialization for 'sys_call_table[0]')
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:29:37: note: in expansion of macro '__SYSCALL'
29 | #define __SC_COMP(_nr, _sys, _comp) __SYSCALL(_nr, _sys)
| ^~~~~~~~~
include/uapi/asm-generic/unistd.h:34:1: note: in expansion of macro '__SC_COMP'
34 | __SC_COMP(__NR_io_setup, sys_io_setup, compat_sys_io_setup)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: warning: initialized field overwritten [-Woverride-init]
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:36:1: note: in expansion of macro '__SYSCALL'
36 | __SYSCALL(__NR_io_destroy, sys_io_destroy)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: note: (near initialization for 'sys_call_table[1]')
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:36:1: note: in expansion of macro '__SYSCALL'
36 | __SYSCALL(__NR_io_destroy, sys_io_destroy)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: warning: initialized field overwritten [-Woverride-init]
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:29:37: note: in expansion of macro '__SYSCALL'
29 | #define __SC_COMP(_nr, _sys, _comp) __SYSCALL(_nr, _sys)
| ^~~~~~~~~
include/uapi/asm-generic/unistd.h:38:1: note: in expansion of macro '__SC_COMP'
38 | __SC_COMP(__NR_io_submit, sys_io_submit, compat_sys_io_submit)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: note: (near initialization for 'sys_call_table[2]')
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:29:37: note: in expansion of macro '__SYSCALL'
29 | #define __SC_COMP(_nr, _sys, _comp) __SYSCALL(_nr, _sys)
| ^~~~~~~~~
include/uapi/asm-generic/unistd.h:38:1: note: in expansion of macro '__SC_COMP'
38 | __SC_COMP(__NR_io_submit, sys_io_submit, compat_sys_io_submit)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: warning: initialized field overwritten [-Woverride-init]
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:40:1: note: in expansion of macro '__SYSCALL'
40 | __SYSCALL(__NR_io_cancel, sys_io_cancel)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: note: (near initialization for 'sys_call_table[3]')
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:40:1: note: in expansion of macro '__SYSCALL'
40 | __SYSCALL(__NR_io_cancel, sys_io_cancel)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: warning: initialized field overwritten [-Woverride-init]
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:20:34: note: in expansion of macro '__SYSCALL'
20 | #define __SC_3264(_nr, _32, _64) __SYSCALL(_nr, _32)
| ^~~~~~~~~
include/uapi/asm-generic/unistd.h:44:1: note: in expansion of macro '__SC_3264'
44 | __SC_3264(__NR_io_getevents, sys_io_getevents_time32, sys_io_getevents)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: note: (near initialization for 'sys_call_table[4]')
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:20:34: note: in expansion of macro '__SYSCALL'
20 | #define __SC_3264(_nr, _32, _64) __SYSCALL(_nr, _32)
| ^~~~~~~~~
include/uapi/asm-generic/unistd.h:44:1: note: in expansion of macro '__SC_3264'
44 | __SC_3264(__NR_io_getevents, sys_io_getevents_time32, sys_io_getevents)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: warning: initialized field overwritten [-Woverride-init]
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:48:1: note: in expansion of macro '__SYSCALL'
48 | __SYSCALL(__NR_setxattr, sys_setxattr)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: note: (near initialization for 'sys_call_table[5]')
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:48:1: note: in expansion of macro '__SYSCALL'
48 | __SYSCALL(__NR_setxattr, sys_setxattr)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: warning: initialized field overwritten [-Woverride-init]
13 | #define __SYSCALL(nr, call) [nr] = (call),
| ^
include/uapi/asm-generic/unistd.h:50:1: note: in expansion of macro '__SYSCALL'
50 | __SYSCALL(__NR_lsetxattr, sys_lsetxattr)
| ^~~~~~~~~
arch/arc/kernel/sys.c:13:36: note: (near initialization for 'sys_call_table[6]')
13 | #define __SYSCALL(nr, call) [nr] = (call),
--
In file included from kernel/time/hrtimer.c:30:
>> include/linux/syscalls.h:825:43: warning: 'struct mpol_args' declared inside parameter list will not be visible outside of this definition or declaration
825 | asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size,
| ^~~~~~~~~
kernel/time/hrtimer.c:120:35: warning: initialized field overwritten [-Woverride-init]
120 | [CLOCK_REALTIME] = HRTIMER_BASE_REALTIME,
| ^~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:120:35: note: (near initialization for 'hrtimer_clock_to_base_table[0]')
kernel/time/hrtimer.c:121:35: warning: initialized field overwritten [-Woverride-init]
121 | [CLOCK_MONOTONIC] = HRTIMER_BASE_MONOTONIC,
| ^~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:121:35: note: (near initialization for 'hrtimer_clock_to_base_table[1]')
kernel/time/hrtimer.c:122:35: warning: initialized field overwritten [-Woverride-init]
122 | [CLOCK_BOOTTIME] = HRTIMER_BASE_BOOTTIME,
| ^~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:122:35: note: (near initialization for 'hrtimer_clock_to_base_table[7]')
kernel/time/hrtimer.c:123:35: warning: initialized field overwritten [-Woverride-init]
123 | [CLOCK_TAI] = HRTIMER_BASE_TAI,
| ^~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:123:35: note: (near initialization for 'hrtimer_clock_to_base_table[11]')
kernel/time/hrtimer.c: In function '__run_hrtimer':
kernel/time/hrtimer.c:1651:14: warning: variable 'expires_in_hardirq' set but not used [-Wunused-but-set-variable]
1651 | bool expires_in_hardirq;
| ^~~~~~~~~~~~~~~~~~
--
>> arc-elf-ld: arch/arc/kernel/sys.o:(.data+0x724): undefined reference to `sys_set_mempolicy2'
>> arc-elf-ld: arch/arc/kernel/sys.o:(.data+0x724): undefined reference to `sys_set_mempolicy2'
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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