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-rw-r--r--arch/s390/configs/zfcpdump_defconfig5
-rw-r--r--arch/s390/include/asm/unistd.h20
-rw-r--r--arch/s390/include/uapi/asm/unistd.h21
-rw-r--r--arch/s390/kernel/compat_signal.c27
-rw-r--r--arch/s390/kernel/compat_wrapper.c70
-rw-r--r--arch/s390/kernel/entry.S2
-rw-r--r--arch/s390/kernel/perf_cpum_cf.c12
-rw-r--r--arch/s390/kernel/swsusp.S38
-rw-r--r--arch/s390/kernel/syscalls.S121
-rw-r--r--arch/s390/kernel/vtime.c12
-rw-r--r--drivers/md/dm-crypt.c17
-rw-r--r--drivers/md/dm-thin.c4
-rw-r--r--drivers/sh/pm_runtime.c19
-rw-r--r--include/linux/cgroup-defs.h27
-rw-r--r--include/linux/init_task.h8
-rw-r--r--include/linux/sched.h12
-rw-r--r--include/linux/security.h2
-rw-r--r--kernel/cgroup.c110
-rw-r--r--kernel/fork.c4
-rw-r--r--tools/testing/selftests/vm/userfaultfd.c2
20 files changed, 284 insertions, 249 deletions
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index 1b0184a0f7f2..92805d604173 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -1,7 +1,6 @@
# CONFIG_SWAP is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
-CONFIG_RCU_FAST_NO_HZ=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_COMPAT_BRK is not set
@@ -54,10 +53,6 @@ CONFIG_RAW_DRIVER=y
# CONFIG_MONWRITER is not set
# CONFIG_S390_VMUR is not set
# CONFIG_HID is not set
-CONFIG_MEMSTICK=y
-CONFIG_MEMSTICK_DEBUG=y
-CONFIG_MEMSTICK_UNSAFE_RESUME=y
-CONFIG_MSPRO_BLOCK=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 525cef73b085..02613bad8bbb 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -8,28 +8,8 @@
#include <uapi/asm/unistd.h>
-
#define __IGNORE_time
-/* Ignore system calls that are also reachable via sys_socketcall */
-#define __IGNORE_recvmmsg
-#define __IGNORE_sendmmsg
-#define __IGNORE_socket
-#define __IGNORE_socketpair
-#define __IGNORE_bind
-#define __IGNORE_connect
-#define __IGNORE_listen
-#define __IGNORE_accept4
-#define __IGNORE_getsockopt
-#define __IGNORE_setsockopt
-#define __IGNORE_getsockname
-#define __IGNORE_getpeername
-#define __IGNORE_sendto
-#define __IGNORE_sendmsg
-#define __IGNORE_recvfrom
-#define __IGNORE_recvmsg
-#define __IGNORE_shutdown
-
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index 59d2bb4e2d0c..a848adba1504 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -290,7 +290,26 @@
#define __NR_s390_pci_mmio_write 352
#define __NR_s390_pci_mmio_read 353
#define __NR_execveat 354
-#define NR_syscalls 355
+#define __NR_userfaultfd 355
+#define __NR_membarrier 356
+#define __NR_recvmmsg 357
+#define __NR_sendmmsg 358
+#define __NR_socket 359
+#define __NR_socketpair 360
+#define __NR_bind 361
+#define __NR_connect 362
+#define __NR_listen 363
+#define __NR_accept4 364
+#define __NR_getsockopt 365
+#define __NR_setsockopt 366
+#define __NR_getsockname 367
+#define __NR_getpeername 368
+#define __NR_sendto 369
+#define __NR_sendmsg 370
+#define __NR_recvfrom 371
+#define __NR_recvmsg 372
+#define __NR_shutdown 373
+#define NR_syscalls 374
/*
* There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index eb4664238613..e0f9d270b30f 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -48,6 +48,19 @@ typedef struct
struct ucontext32 uc;
} rt_sigframe32;
+static inline void sigset_to_sigset32(unsigned long *set64,
+ compat_sigset_word *set32)
+{
+ set32[0] = (compat_sigset_word) set64[0];
+ set32[1] = (compat_sigset_word)(set64[0] >> 32);
+}
+
+static inline void sigset32_to_sigset(compat_sigset_word *set32,
+ unsigned long *set64)
+{
+ set64[0] = (unsigned long) set32[0] | ((unsigned long) set32[1] << 32);
+}
+
int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
{
int err;
@@ -281,10 +294,12 @@ COMPAT_SYSCALL_DEFINE0(sigreturn)
{
struct pt_regs *regs = task_pt_regs(current);
sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15];
+ compat_sigset_t cset;
sigset_t set;
- if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
+ if (__copy_from_user(&cset.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
goto badframe;
+ sigset32_to_sigset(cset.sig, set.sig);
set_current_blocked(&set);
save_fpu_regs();
if (restore_sigregs32(regs, &frame->sregs))
@@ -302,10 +317,12 @@ COMPAT_SYSCALL_DEFINE0(rt_sigreturn)
{
struct pt_regs *regs = task_pt_regs(current);
rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];
+ compat_sigset_t cset;
sigset_t set;
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+ if (__copy_from_user(&cset, &frame->uc.uc_sigmask, sizeof(cset)))
goto badframe;
+ sigset32_to_sigset(cset.sig, set.sig);
set_current_blocked(&set);
if (compat_restore_altstack(&frame->uc.uc_stack))
goto badframe;
@@ -377,7 +394,7 @@ static int setup_frame32(struct ksignal *ksig, sigset_t *set,
return -EFAULT;
/* Create struct sigcontext32 on the signal stack */
- memcpy(&sc.oldmask, &set->sig, _SIGMASK_COPY_SIZE32);
+ sigset_to_sigset32(set->sig, sc.oldmask);
sc.sregs = (__u32)(unsigned long __force) &frame->sregs;
if (__copy_to_user(&frame->sc, &sc, sizeof(frame->sc)))
return -EFAULT;
@@ -438,6 +455,7 @@ static int setup_frame32(struct ksignal *ksig, sigset_t *set,
static int setup_rt_frame32(struct ksignal *ksig, sigset_t *set,
struct pt_regs *regs)
{
+ compat_sigset_t cset;
rt_sigframe32 __user *frame;
unsigned long restorer;
size_t frame_size;
@@ -485,11 +503,12 @@ static int setup_rt_frame32(struct ksignal *ksig, sigset_t *set,
store_sigregs();
/* Create ucontext on the signal stack. */
+ sigset_to_sigset32(set->sig, cset.sig);
if (__put_user(uc_flags, &frame->uc.uc_flags) ||
__put_user(0, &frame->uc.uc_link) ||
__compat_save_altstack(&frame->uc.uc_stack, regs->gprs[15]) ||
save_sigregs32(regs, &frame->uc.uc_mcontext) ||
- __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)) ||
+ __copy_to_user(&frame->uc.uc_sigmask, &cset, sizeof(cset)) ||
save_sigregs_ext32(regs, &frame->uc.uc_mcontext_ext))
return -EFAULT;
diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c
index f8498dde67b1..09f194052df3 100644
--- a/arch/s390/kernel/compat_wrapper.c
+++ b/arch/s390/kernel/compat_wrapper.c
@@ -52,15 +52,13 @@
* the regular system call wrappers.
*/
#define COMPAT_SYSCALL_WRAPx(x, name, ...) \
- asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
- asmlinkage long compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__));\
- asmlinkage long compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__)) \
- { \
- return sys##name(__MAP(x,__SC_COMPAT_CAST,__VA_ARGS__)); \
- }
+asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
+asmlinkage long notrace compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__));\
+asmlinkage long notrace compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__)) \
+{ \
+ return sys##name(__MAP(x,__SC_COMPAT_CAST,__VA_ARGS__)); \
+}
-COMPAT_SYSCALL_WRAP1(exit, int, error_code);
-COMPAT_SYSCALL_WRAP1(close, unsigned int, fd);
COMPAT_SYSCALL_WRAP2(creat, const char __user *, pathname, umode_t, mode);
COMPAT_SYSCALL_WRAP2(link, const char __user *, oldname, const char __user *, newname);
COMPAT_SYSCALL_WRAP1(unlink, const char __user *, pathname);
@@ -68,23 +66,16 @@ COMPAT_SYSCALL_WRAP1(chdir, const char __user *, filename);
COMPAT_SYSCALL_WRAP3(mknod, const char __user *, filename, umode_t, mode, unsigned, dev);
COMPAT_SYSCALL_WRAP2(chmod, const char __user *, filename, umode_t, mode);
COMPAT_SYSCALL_WRAP1(oldumount, char __user *, name);
-COMPAT_SYSCALL_WRAP1(alarm, unsigned int, seconds);
COMPAT_SYSCALL_WRAP2(access, const char __user *, filename, int, mode);
-COMPAT_SYSCALL_WRAP1(nice, int, increment);
-COMPAT_SYSCALL_WRAP2(kill, int, pid, int, sig);
COMPAT_SYSCALL_WRAP2(rename, const char __user *, oldname, const char __user *, newname);
COMPAT_SYSCALL_WRAP2(mkdir, const char __user *, pathname, umode_t, mode);
COMPAT_SYSCALL_WRAP1(rmdir, const char __user *, pathname);
-COMPAT_SYSCALL_WRAP1(dup, unsigned int, fildes);
COMPAT_SYSCALL_WRAP1(pipe, int __user *, fildes);
COMPAT_SYSCALL_WRAP1(brk, unsigned long, brk);
COMPAT_SYSCALL_WRAP2(signal, int, sig, __sighandler_t, handler);
COMPAT_SYSCALL_WRAP1(acct, const char __user *, name);
COMPAT_SYSCALL_WRAP2(umount, char __user *, name, int, flags);
-COMPAT_SYSCALL_WRAP2(setpgid, pid_t, pid, pid_t, pgid);
-COMPAT_SYSCALL_WRAP1(umask, int, mask);
COMPAT_SYSCALL_WRAP1(chroot, const char __user *, filename);
-COMPAT_SYSCALL_WRAP2(dup2, unsigned int, oldfd, unsigned int, newfd);
COMPAT_SYSCALL_WRAP3(sigsuspend, int, unused1, int, unused2, old_sigset_t, mask);
COMPAT_SYSCALL_WRAP2(sethostname, char __user *, name, int, len);
COMPAT_SYSCALL_WRAP2(symlink, const char __user *, old, const char __user *, new);
@@ -93,37 +84,23 @@ COMPAT_SYSCALL_WRAP1(uselib, const char __user *, library);
COMPAT_SYSCALL_WRAP2(swapon, const char __user *, specialfile, int, swap_flags);
COMPAT_SYSCALL_WRAP4(reboot, int, magic1, int, magic2, unsigned int, cmd, void __user *, arg);
COMPAT_SYSCALL_WRAP2(munmap, unsigned long, addr, size_t, len);
-COMPAT_SYSCALL_WRAP2(fchmod, unsigned int, fd, umode_t, mode);
-COMPAT_SYSCALL_WRAP2(getpriority, int, which, int, who);
-COMPAT_SYSCALL_WRAP3(setpriority, int, which, int, who, int, niceval);
COMPAT_SYSCALL_WRAP3(syslog, int, type, char __user *, buf, int, len);
COMPAT_SYSCALL_WRAP1(swapoff, const char __user *, specialfile);
-COMPAT_SYSCALL_WRAP1(fsync, unsigned int, fd);
COMPAT_SYSCALL_WRAP2(setdomainname, char __user *, name, int, len);
COMPAT_SYSCALL_WRAP1(newuname, struct new_utsname __user *, name);
COMPAT_SYSCALL_WRAP3(mprotect, unsigned long, start, size_t, len, unsigned long, prot);
COMPAT_SYSCALL_WRAP3(init_module, void __user *, umod, unsigned long, len, const char __user *, uargs);
COMPAT_SYSCALL_WRAP2(delete_module, const char __user *, name_user, unsigned int, flags);
COMPAT_SYSCALL_WRAP4(quotactl, unsigned int, cmd, const char __user *, special, qid_t, id, void __user *, addr);
-COMPAT_SYSCALL_WRAP1(getpgid, pid_t, pid);
-COMPAT_SYSCALL_WRAP1(fchdir, unsigned int, fd);
COMPAT_SYSCALL_WRAP2(bdflush, int, func, long, data);
COMPAT_SYSCALL_WRAP3(sysfs, int, option, unsigned long, arg1, unsigned long, arg2);
-COMPAT_SYSCALL_WRAP1(s390_personality, unsigned int, personality);
COMPAT_SYSCALL_WRAP5(llseek, unsigned int, fd, unsigned long, high, unsigned long, low, loff_t __user *, result, unsigned int, whence);
-COMPAT_SYSCALL_WRAP2(flock, unsigned int, fd, unsigned int, cmd);
COMPAT_SYSCALL_WRAP3(msync, unsigned long, start, size_t, len, int, flags);
-COMPAT_SYSCALL_WRAP1(getsid, pid_t, pid);
-COMPAT_SYSCALL_WRAP1(fdatasync, unsigned int, fd);
COMPAT_SYSCALL_WRAP2(mlock, unsigned long, start, size_t, len);
COMPAT_SYSCALL_WRAP2(munlock, unsigned long, start, size_t, len);
-COMPAT_SYSCALL_WRAP1(mlockall, int, flags);
COMPAT_SYSCALL_WRAP2(sched_setparam, pid_t, pid, struct sched_param __user *, param);
COMPAT_SYSCALL_WRAP2(sched_getparam, pid_t, pid, struct sched_param __user *, param);
COMPAT_SYSCALL_WRAP3(sched_setscheduler, pid_t, pid, int, policy, struct sched_param __user *, param);
-COMPAT_SYSCALL_WRAP1(sched_getscheduler, pid_t, pid);
-COMPAT_SYSCALL_WRAP1(sched_get_priority_max, int, policy);
-COMPAT_SYSCALL_WRAP1(sched_get_priority_min, int, policy);
COMPAT_SYSCALL_WRAP5(mremap, unsigned long, addr, unsigned long, old_len, unsigned long, new_len, unsigned long, flags, unsigned long, new_addr);
COMPAT_SYSCALL_WRAP3(poll, struct pollfd __user *, ufds, unsigned int, nfds, int, timeout);
COMPAT_SYSCALL_WRAP5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, unsigned long, arg4, unsigned long, arg5);
@@ -131,20 +108,11 @@ COMPAT_SYSCALL_WRAP2(getcwd, char __user *, buf, unsigned long, size);
COMPAT_SYSCALL_WRAP2(capget, cap_user_header_t, header, cap_user_data_t, dataptr);
COMPAT_SYSCALL_WRAP2(capset, cap_user_header_t, header, const cap_user_data_t, data);
COMPAT_SYSCALL_WRAP3(lchown, const char __user *, filename, uid_t, user, gid_t, group);
-COMPAT_SYSCALL_WRAP2(setreuid, uid_t, ruid, uid_t, euid);
-COMPAT_SYSCALL_WRAP2(setregid, gid_t, rgid, gid_t, egid);
COMPAT_SYSCALL_WRAP2(getgroups, int, gidsetsize, gid_t __user *, grouplist);
COMPAT_SYSCALL_WRAP2(setgroups, int, gidsetsize, gid_t __user *, grouplist);
-COMPAT_SYSCALL_WRAP3(fchown, unsigned int, fd, uid_t, user, gid_t, group);
-COMPAT_SYSCALL_WRAP3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid);
COMPAT_SYSCALL_WRAP3(getresuid, uid_t __user *, ruid, uid_t __user *, euid, uid_t __user *, suid);
-COMPAT_SYSCALL_WRAP3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid);
COMPAT_SYSCALL_WRAP3(getresgid, gid_t __user *, rgid, gid_t __user *, egid, gid_t __user *, sgid);
COMPAT_SYSCALL_WRAP3(chown, const char __user *, filename, uid_t, user, gid_t, group);
-COMPAT_SYSCALL_WRAP1(setuid, uid_t, uid);
-COMPAT_SYSCALL_WRAP1(setgid, gid_t, gid);
-COMPAT_SYSCALL_WRAP1(setfsuid, uid_t, uid);
-COMPAT_SYSCALL_WRAP1(setfsgid, gid_t, gid);
COMPAT_SYSCALL_WRAP2(pivot_root, const char __user *, new_root, const char __user *, put_old);
COMPAT_SYSCALL_WRAP3(mincore, unsigned long, start, size_t, len, unsigned char __user *, vec);
COMPAT_SYSCALL_WRAP3(madvise, unsigned long, start, size_t, len, int, behavior);
@@ -161,23 +129,16 @@ COMPAT_SYSCALL_WRAP3(flistxattr, int, fd, char __user *, list, size_t, size);
COMPAT_SYSCALL_WRAP2(removexattr, const char __user *, path, const char __user *, name);
COMPAT_SYSCALL_WRAP2(lremovexattr, const char __user *, path, const char __user *, name);
COMPAT_SYSCALL_WRAP2(fremovexattr, int, fd, const char __user *, name);
-COMPAT_SYSCALL_WRAP1(exit_group, int, error_code);
COMPAT_SYSCALL_WRAP1(set_tid_address, int __user *, tidptr);
-COMPAT_SYSCALL_WRAP1(epoll_create, int, size);
COMPAT_SYSCALL_WRAP4(epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event __user *, event);
COMPAT_SYSCALL_WRAP4(epoll_wait, int, epfd, struct epoll_event __user *, events, int, maxevents, int, timeout);
-COMPAT_SYSCALL_WRAP1(timer_getoverrun, timer_t, timer_id);
-COMPAT_SYSCALL_WRAP1(timer_delete, compat_timer_t, compat_timer_id);
COMPAT_SYSCALL_WRAP1(io_destroy, aio_context_t, ctx);
COMPAT_SYSCALL_WRAP3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb, struct io_event __user *, result);
COMPAT_SYSCALL_WRAP1(mq_unlink, const char __user *, name);
COMPAT_SYSCALL_WRAP5(add_key, const char __user *, tp, const char __user *, dsc, const void __user *, pld, size_t, len, key_serial_t, id);
COMPAT_SYSCALL_WRAP4(request_key, const char __user *, tp, const char __user *, dsc, const char __user *, info, key_serial_t, id);
COMPAT_SYSCALL_WRAP5(remap_file_pages, unsigned long, start, unsigned long, size, unsigned long, prot, unsigned long, pgoff, unsigned long, flags);
-COMPAT_SYSCALL_WRAP3(ioprio_set, int, which, int, who, int, ioprio);
-COMPAT_SYSCALL_WRAP2(ioprio_get, int, which, int, who);
COMPAT_SYSCALL_WRAP3(inotify_add_watch, int, fd, const char __user *, path, u32, mask);
-COMPAT_SYSCALL_WRAP2(inotify_rm_watch, int, fd, __s32, wd);
COMPAT_SYSCALL_WRAP3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode);
COMPAT_SYSCALL_WRAP4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, unsigned, dev);
COMPAT_SYSCALL_WRAP5(fchownat, int, dfd, const char __user *, filename, uid_t, user, gid_t, group, int, flag);
@@ -192,23 +153,11 @@ COMPAT_SYSCALL_WRAP1(unshare, unsigned long, unshare_flags);
COMPAT_SYSCALL_WRAP6(splice, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags);
COMPAT_SYSCALL_WRAP4(tee, int, fdin, int, fdout, size_t, len, unsigned int, flags);
COMPAT_SYSCALL_WRAP3(getcpu, unsigned __user *, cpu, unsigned __user *, node, struct getcpu_cache __user *, cache);
-COMPAT_SYSCALL_WRAP1(eventfd, unsigned int, count);
-COMPAT_SYSCALL_WRAP2(timerfd_create, int, clockid, int, flags);
-COMPAT_SYSCALL_WRAP2(eventfd2, unsigned int, count, int, flags);
-COMPAT_SYSCALL_WRAP1(inotify_init1, int, flags);
COMPAT_SYSCALL_WRAP2(pipe2, int __user *, fildes, int, flags);
-COMPAT_SYSCALL_WRAP3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags);
-COMPAT_SYSCALL_WRAP1(epoll_create1, int, flags);
-COMPAT_SYSCALL_WRAP2(tkill, int, pid, int, sig);
-COMPAT_SYSCALL_WRAP3(tgkill, int, tgid, int, pid, int, sig);
COMPAT_SYSCALL_WRAP5(perf_event_open, struct perf_event_attr __user *, attr_uptr, pid_t, pid, int, cpu, int, group_fd, unsigned long, flags);
COMPAT_SYSCALL_WRAP5(clone, unsigned long, newsp, unsigned long, clone_flags, int __user *, parent_tidptr, int __user *, child_tidptr, unsigned long, tls);
-COMPAT_SYSCALL_WRAP2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags);
COMPAT_SYSCALL_WRAP4(prlimit64, pid_t, pid, unsigned int, resource, const struct rlimit64 __user *, new_rlim, struct rlimit64 __user *, old_rlim);
COMPAT_SYSCALL_WRAP5(name_to_handle_at, int, dfd, const char __user *, name, struct file_handle __user *, handle, int __user *, mnt_id, int, flag);
-COMPAT_SYSCALL_WRAP1(syncfs, int, fd);
-COMPAT_SYSCALL_WRAP2(setns, int, fd, int, nstype);
-COMPAT_SYSCALL_WRAP2(s390_runtime_instr, int, command, int, signum);
COMPAT_SYSCALL_WRAP5(kcmp, pid_t, pid1, pid_t, pid2, int, type, unsigned long, idx1, unsigned long, idx2);
COMPAT_SYSCALL_WRAP3(finit_module, int, fd, const char __user *, uargs, int, flags);
COMPAT_SYSCALL_WRAP3(sched_setattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, flags);
@@ -220,3 +169,10 @@ COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, fla
COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size);
COMPAT_SYSCALL_WRAP3(s390_pci_mmio_write, const unsigned long, mmio_addr, const void __user *, user_buffer, const size_t, length);
COMPAT_SYSCALL_WRAP3(s390_pci_mmio_read, const unsigned long, mmio_addr, void __user *, user_buffer, const size_t, length);
+COMPAT_SYSCALL_WRAP4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec);
+COMPAT_SYSCALL_WRAP3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen);
+COMPAT_SYSCALL_WRAP3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen);
+COMPAT_SYSCALL_WRAP4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags);
+COMPAT_SYSCALL_WRAP3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
+COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
+COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len);
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 247b7aae4c6d..09b039d7983d 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -1191,6 +1191,7 @@ cleanup_critical:
clg %r9,BASED(.Lcleanup_save_fpu_fpc_end)
jhe 1f
lg %r2,__LC_CURRENT
+ aghi %r2,__TASK_thread
0: # Store floating-point controls
stfpc __THREAD_FPU_fpc(%r2)
1: # Load register save area and check if VX is active
@@ -1252,6 +1253,7 @@ cleanup_critical:
clg %r9,BASED(.Lcleanup_load_fpu_regs_vx_ctl)
jhe 6f
lg %r4,__LC_CURRENT
+ aghi %r4,__TASK_thread
lfpc __THREAD_FPU_fpc(%r4)
tm __THREAD_FPU_flags+3(%r4),FPU_USE_VX # VX-enabled task ?
lg %r4,__THREAD_FPU_regs(%r4) # %r4 <- reg save area
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 56fdad479115..a9563409c36e 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -157,10 +157,14 @@ static int validate_ctr_auth(const struct hw_perf_event *hwc)
cpuhw = &get_cpu_var(cpu_hw_events);
- /* check authorization for cpu counter sets */
+ /* Check authorization for cpu counter sets.
+ * If the particular CPU counter set is not authorized,
+ * return with -ENOENT in order to fall back to other
+ * PMUs that might suffice the event request.
+ */
ctrs_state = cpumf_state_ctl[hwc->config_base];
if (!(ctrs_state & cpuhw->info.auth_ctl))
- err = -EPERM;
+ err = -ENOENT;
put_cpu_var(cpu_hw_events);
return err;
@@ -536,7 +540,7 @@ static int cpumf_pmu_add(struct perf_event *event, int flags)
*/
if (!(cpuhw->flags & PERF_EVENT_TXN))
if (validate_ctr_auth(&event->hw))
- return -EPERM;
+ return -ENOENT;
ctr_set_enable(&cpuhw->state, event->hw.config_base);
event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
@@ -611,7 +615,7 @@ static int cpumf_pmu_commit_txn(struct pmu *pmu)
state = cpuhw->state & ~((1 << CPUMF_LCCTL_ENABLE_SHIFT) - 1);
state >>= CPUMF_LCCTL_ENABLE_SHIFT;
if ((state & cpuhw->info.auth_ctl) != state)
- return -EPERM;
+ return -ENOENT;
cpuhw->flags &= ~PERF_EVENT_TXN;
perf_pmu_enable(pmu);
diff --git a/arch/s390/kernel/swsusp.S b/arch/s390/kernel/swsusp.S
index ca6294645dd3..2d6b6e81f812 100644
--- a/arch/s390/kernel/swsusp.S
+++ b/arch/s390/kernel/swsusp.S
@@ -30,6 +30,9 @@ ENTRY(swsusp_arch_suspend)
aghi %r15,-STACK_FRAME_OVERHEAD
stg %r1,__SF_BACKCHAIN(%r15)
+ /* Store FPU registers */
+ brasl %r14,save_fpu_regs
+
/* Deactivate DAT */
stnsm __SF_EMPTY(%r15),0xfb
@@ -47,23 +50,6 @@ ENTRY(swsusp_arch_suspend)
/* Store registers */
mvc 0x318(4,%r1),__SF_EMPTY(%r15) /* move prefix to lowcore */
- stfpc 0x31c(%r1) /* store fpu control */
- std 0,0x200(%r1) /* store f0 */
- std 1,0x208(%r1) /* store f1 */
- std 2,0x210(%r1) /* store f2 */
- std 3,0x218(%r1) /* store f3 */
- std 4,0x220(%r1) /* store f4 */
- std 5,0x228(%r1) /* store f5 */
- std 6,0x230(%r1) /* store f6 */
- std 7,0x238(%r1) /* store f7 */
- std 8,0x240(%r1) /* store f8 */
- std 9,0x248(%r1) /* store f9 */
- std 10,0x250(%r1) /* store f10 */
- std 11,0x258(%r1) /* store f11 */
- std 12,0x260(%r1) /* store f12 */
- std 13,0x268(%r1) /* store f13 */
- std 14,0x270(%r1) /* store f14 */
- std 15,0x278(%r1) /* store f15 */
stam %a0,%a15,0x340(%r1) /* store access registers */
stctg %c0,%c15,0x380(%r1) /* store control registers */
stmg %r0,%r15,0x280(%r1) /* store general registers */
@@ -249,24 +235,6 @@ restore_registers:
lctlg %c0,%c15,0x380(%r13) /* load control registers */
lam %a0,%a15,0x340(%r13) /* load access registers */
- lfpc 0x31c(%r13) /* load fpu control */
- ld 0,0x200(%r13) /* load f0 */
- ld 1,0x208(%r13) /* load f1 */
- ld 2,0x210(%r13) /* load f2 */
- ld 3,0x218(%r13) /* load f3 */
- ld 4,0x220(%r13) /* load f4 */
- ld 5,0x228(%r13) /* load f5 */
- ld 6,0x230(%r13) /* load f6 */
- ld 7,0x238(%r13) /* load f7 */
- ld 8,0x240(%r13) /* load f8 */
- ld 9,0x248(%r13) /* load f9 */
- ld 10,0x250(%r13) /* load f10 */
- ld 11,0x258(%r13) /* load f11 */
- ld 12,0x260(%r13) /* load f12 */
- ld 13,0x268(%r13) /* load f13 */
- ld 14,0x270(%r13) /* load f14 */
- ld 15,0x278(%r13) /* load f15 */
-
/* Load old stack */
lg %r15,0x2f8(%r13)
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index f3f4a137aef6..8c56929c8d82 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -9,12 +9,12 @@
#define NI_SYSCALL SYSCALL(sys_ni_syscall,sys_ni_syscall)
NI_SYSCALL /* 0 */
-SYSCALL(sys_exit,compat_sys_exit)
+SYSCALL(sys_exit,sys_exit)
SYSCALL(sys_fork,sys_fork)
SYSCALL(sys_read,compat_sys_s390_read)
SYSCALL(sys_write,compat_sys_s390_write)
SYSCALL(sys_open,compat_sys_open) /* 5 */
-SYSCALL(sys_close,compat_sys_close)
+SYSCALL(sys_close,sys_close)
SYSCALL(sys_restart_syscall,sys_restart_syscall)
SYSCALL(sys_creat,compat_sys_creat)
SYSCALL(sys_link,compat_sys_link)
@@ -35,21 +35,21 @@ SYSCALL(sys_ni_syscall,compat_sys_s390_setuid16) /* old setuid16 syscall*/
SYSCALL(sys_ni_syscall,compat_sys_s390_getuid16) /* old getuid16 syscall*/
SYSCALL(sys_ni_syscall,compat_sys_stime) /* 25 old stime syscall */
SYSCALL(sys_ptrace,compat_sys_ptrace)
-SYSCALL(sys_alarm,compat_sys_alarm)
+SYSCALL(sys_alarm,sys_alarm)
NI_SYSCALL /* old fstat syscall */
SYSCALL(sys_pause,sys_pause)
SYSCALL(sys_utime,compat_sys_utime) /* 30 */
NI_SYSCALL /* old stty syscall */
NI_SYSCALL /* old gtty syscall */
SYSCALL(sys_access,compat_sys_access)
-SYSCALL(sys_nice,compat_sys_nice)
+SYSCALL(sys_nice,sys_nice)
NI_SYSCALL /* 35 old ftime syscall */
SYSCALL(sys_sync,sys_sync)
-SYSCALL(sys_kill,compat_sys_kill)
+SYSCALL(sys_kill,sys_kill)
SYSCALL(sys_rename,compat_sys_rename)
SYSCALL(sys_mkdir,compat_sys_mkdir)
SYSCALL(sys_rmdir,compat_sys_rmdir) /* 40 */
-SYSCALL(sys_dup,compat_sys_dup)
+SYSCALL(sys_dup,sys_dup)
SYSCALL(sys_pipe,compat_sys_pipe)
SYSCALL(sys_times,compat_sys_times)
NI_SYSCALL /* old prof syscall */
@@ -65,13 +65,13 @@ NI_SYSCALL /* old lock syscall */
SYSCALL(sys_ioctl,compat_sys_ioctl)
SYSCALL(sys_fcntl,compat_sys_fcntl) /* 55 */
NI_SYSCALL /* intel mpx syscall */
-SYSCALL(sys_setpgid,compat_sys_setpgid)
+SYSCALL(sys_setpgid,sys_setpgid)
NI_SYSCALL /* old ulimit syscall */
NI_SYSCALL /* old uname syscall */
-SYSCALL(sys_umask,compat_sys_umask) /* 60 */
+SYSCALL(sys_umask,sys_umask) /* 60 */
SYSCALL(sys_chroot,compat_sys_chroot)
SYSCALL(sys_ustat,compat_sys_ustat)
-SYSCALL(sys_dup2,compat_sys_dup2)
+SYSCALL(sys_dup2,sys_dup2)
SYSCALL(sys_getppid,sys_getppid)
SYSCALL(sys_getpgrp,sys_getpgrp) /* 65 */
SYSCALL(sys_setsid,sys_setsid)
@@ -102,10 +102,10 @@ SYSCALL(sys_old_mmap,compat_sys_s390_old_mmap) /* 90 */
SYSCALL(sys_munmap,compat_sys_munmap)
SYSCALL(sys_truncate,compat_sys_truncate)
SYSCALL(sys_ftruncate,compat_sys_ftruncate)
-SYSCALL(sys_fchmod,compat_sys_fchmod)
+SYSCALL(sys_fchmod,sys_fchmod)
SYSCALL(sys_ni_syscall,compat_sys_s390_fchown16) /* 95 old fchown16 syscall*/
-SYSCALL(sys_getpriority,compat_sys_getpriority)
-SYSCALL(sys_setpriority,compat_sys_setpriority)
+SYSCALL(sys_getpriority,sys_getpriority)
+SYSCALL(sys_setpriority,sys_setpriority)
NI_SYSCALL /* old profil syscall */
SYSCALL(sys_statfs,compat_sys_statfs)
SYSCALL(sys_fstatfs,compat_sys_fstatfs) /* 100 */
@@ -126,7 +126,7 @@ SYSCALL(sys_wait4,compat_sys_wait4)
SYSCALL(sys_swapoff,compat_sys_swapoff) /* 115 */
SYSCALL(sys_sysinfo,compat_sys_sysinfo)
SYSCALL(sys_s390_ipc,compat_sys_s390_ipc)
-SYSCALL(sys_fsync,compat_sys_fsync)
+SYSCALL(sys_fsync,sys_fsync)
SYSCALL(sys_sigreturn,compat_sys_sigreturn)
SYSCALL(sys_clone,compat_sys_clone) /* 120 */
SYSCALL(sys_setdomainname,compat_sys_setdomainname)
@@ -140,35 +140,35 @@ SYSCALL(sys_init_module,compat_sys_init_module)
SYSCALL(sys_delete_module,compat_sys_delete_module)
NI_SYSCALL /* 130: old get_kernel_syms */
SYSCALL(sys_quotactl,compat_sys_quotactl)
-SYSCALL(sys_getpgid,compat_sys_getpgid)
-SYSCALL(sys_fchdir,compat_sys_fchdir)
+SYSCALL(sys_getpgid,sys_getpgid)
+SYSCALL(sys_fchdir,sys_fchdir)
SYSCALL(sys_bdflush,compat_sys_bdflush)
SYSCALL(sys_sysfs,compat_sys_sysfs) /* 135 */
-SYSCALL(sys_s390_personality,compat_sys_s390_personality)
+SYSCALL(sys_s390_personality,sys_s390_personality)
NI_SYSCALL /* for afs_syscall */
SYSCALL(sys_ni_syscall,compat_sys_s390_setfsuid16) /* old setfsuid16 syscall */
SYSCALL(sys_ni_syscall,compat_sys_s390_setfsgid16) /* old setfsgid16 syscall */
SYSCALL(sys_llseek,compat_sys_llseek) /* 140 */
SYSCALL(sys_getdents,compat_sys_getdents)
SYSCALL(sys_select,compat_sys_select)
-SYSCALL(sys_flock,compat_sys_flock)
+SYSCALL(sys_flock,sys_flock)
SYSCALL(sys_msync,compat_sys_msync)
SYSCALL(sys_readv,compat_sys_readv) /* 145 */
SYSCALL(sys_writev,compat_sys_writev)
-SYSCALL(sys_getsid,compat_sys_getsid)
-SYSCALL(sys_fdatasync,compat_sys_fdatasync)
+SYSCALL(sys_getsid,sys_getsid)
+SYSCALL(sys_fdatasync,sys_fdatasync)
SYSCALL(sys_sysctl,compat_sys_sysctl)
SYSCALL(sys_mlock,compat_sys_mlock) /* 150 */
SYSCALL(sys_munlock,compat_sys_munlock)
-SYSCALL(sys_mlockall,compat_sys_mlockall)
+SYSCALL(sys_mlockall,sys_mlockall)
SYSCALL(sys_munlockall,sys_munlockall)
SYSCALL(sys_sched_setparam,compat_sys_sched_setparam)
SYSCALL(sys_sched_getparam,compat_sys_sched_getparam) /* 155 */
SYSCALL(sys_sched_setscheduler,compat_sys_sched_setscheduler)
-SYSCALL(sys_sched_getscheduler,compat_sys_sched_getscheduler)
+SYSCALL(sys_sched_getscheduler,sys_sched_getscheduler)
SYSCALL(sys_sched_yield,sys_sched_yield)
-SYSCALL(sys_sched_get_priority_max,compat_sys_sched_get_priority_max)
-SYSCALL(sys_sched_get_priority_min,compat_sys_sched_get_priority_min) /* 160 */
+SYSCALL(sys_sched_get_priority_max,sys_sched_get_priority_max)
+SYSCALL(sys_sched_get_priority_min,sys_sched_get_priority_min) /* 160 */
SYSCALL(sys_sched_rr_get_interval,compat_sys_sched_rr_get_interval)
SYSCALL(sys_nanosleep,compat_sys_nanosleep)
SYSCALL(sys_mremap,compat_sys_mremap)
@@ -211,20 +211,20 @@ SYSCALL(sys_getuid,sys_getuid)
SYSCALL(sys_getgid,sys_getgid) /* 200 */
SYSCALL(sys_geteuid,sys_geteuid)
SYSCALL(sys_getegid,sys_getegid)
-SYSCALL(sys_setreuid,compat_sys_setreuid)
-SYSCALL(sys_setregid,compat_sys_setregid)
+SYSCALL(sys_setreuid,sys_setreuid)
+SYSCALL(sys_setregid,sys_setregid)
SYSCALL(sys_getgroups,compat_sys_getgroups) /* 205 */
SYSCALL(sys_setgroups,compat_sys_setgroups)
-SYSCALL(sys_fchown,compat_sys_fchown)
-SYSCALL(sys_setresuid,compat_sys_setresuid)
+SYSCALL(sys_fchown,sys_fchown)
+SYSCALL(sys_setresuid,sys_setresuid)
SYSCALL(sys_getresuid,compat_sys_getresuid)
-SYSCALL(sys_setresgid,compat_sys_setresgid) /* 210 */
+SYSCALL(sys_setresgid,sys_setresgid) /* 210 */
SYSCALL(sys_getresgid,compat_sys_getresgid)
SYSCALL(sys_chown,compat_sys_chown)
-SYSCALL(sys_setuid,compat_sys_setuid)
-SYSCALL(sys_setgid,compat_sys_setgid)
-SYSCALL(sys_setfsuid,compat_sys_setfsuid) /* 215 */
-SYSCALL(sys_setfsgid,compat_sys_setfsgid)
+SYSCALL(sys_setuid,sys_setuid)
+SYSCALL(sys_setgid,sys_setgid)
+SYSCALL(sys_setfsuid,sys_setfsuid) /* 215 */
+SYSCALL(sys_setfsgid,sys_setfsgid)
SYSCALL(sys_pivot_root,compat_sys_pivot_root)
SYSCALL(sys_mincore,compat_sys_mincore)
SYSCALL(sys_madvise,compat_sys_madvise)
@@ -245,19 +245,19 @@ SYSCALL(sys_removexattr,compat_sys_removexattr)
SYSCALL(sys_lremovexattr,compat_sys_lremovexattr)
SYSCALL(sys_fremovexattr,compat_sys_fremovexattr) /* 235 */
SYSCALL(sys_gettid,sys_gettid)
-SYSCALL(sys_tkill,compat_sys_tkill)
+SYSCALL(sys_tkill,sys_tkill)
SYSCALL(sys_futex,compat_sys_futex)
SYSCALL(sys_sched_setaffinity,compat_sys_sched_setaffinity)
SYSCALL(sys_sched_getaffinity,compat_sys_sched_getaffinity) /* 240 */
-SYSCALL(sys_tgkill,compat_sys_tgkill)
+SYSCALL(sys_tgkill,sys_tgkill)
NI_SYSCALL /* reserved for TUX */
SYSCALL(sys_io_setup,compat_sys_io_setup)
SYSCALL(sys_io_destroy,compat_sys_io_destroy)
SYSCALL(sys_io_getevents,compat_sys_io_getevents) /* 245 */
SYSCALL(sys_io_submit,compat_sys_io_submit)
SYSCALL(sys_io_cancel,compat_sys_io_cancel)
-SYSCALL(sys_exit_group,compat_sys_exit_group)
-SYSCALL(sys_epoll_create,compat_sys_epoll_create)
+SYSCALL(sys_exit_group,sys_exit_group)
+SYSCALL(sys_epoll_create,sys_epoll_create)
SYSCALL(sys_epoll_ctl,compat_sys_epoll_ctl) /* 250 */
SYSCALL(sys_epoll_wait,compat_sys_epoll_wait)
SYSCALL(sys_set_tid_address,compat_sys_set_tid_address)
@@ -265,8 +265,8 @@ SYSCALL(sys_fadvise64_64,compat_sys_s390_fadvise64)
SYSCALL(sys_timer_create,compat_sys_timer_create)
SYSCALL(sys_timer_settime,compat_sys_timer_settime) /* 255 */
SYSCALL(sys_timer_gettime,compat_sys_timer_gettime)
-SYSCALL(sys_timer_getoverrun,compat_sys_timer_getoverrun)
-SYSCALL(sys_timer_delete,compat_sys_timer_delete)
+SYSCALL(sys_timer_getoverrun,sys_timer_getoverrun)
+SYSCALL(sys_timer_delete,sys_timer_delete)
SYSCALL(sys_clock_settime,compat_sys_clock_settime)
SYSCALL(sys_clock_gettime,compat_sys_clock_gettime) /* 260 */
SYSCALL(sys_clock_getres,compat_sys_clock_getres)
@@ -290,11 +290,11 @@ SYSCALL(sys_add_key,compat_sys_add_key)
SYSCALL(sys_request_key,compat_sys_request_key)
SYSCALL(sys_keyctl,compat_sys_keyctl) /* 280 */
SYSCALL(sys_waitid,compat_sys_waitid)
-SYSCALL(sys_ioprio_set,compat_sys_ioprio_set)
-SYSCALL(sys_ioprio_get,compat_sys_ioprio_get)
+SYSCALL(sys_ioprio_set,sys_ioprio_set)
+SYSCALL(sys_ioprio_get,sys_ioprio_get)
SYSCALL(sys_inotify_init,sys_inotify_init)
SYSCALL(sys_inotify_add_watch,compat_sys_inotify_add_watch) /* 285 */
-SYSCALL(sys_inotify_rm_watch,compat_sys_inotify_rm_watch)
+SYSCALL(sys_inotify_rm_watch,sys_inotify_rm_watch)
SYSCALL(sys_migrate_pages,compat_sys_migrate_pages)
SYSCALL(sys_openat,compat_sys_openat)
SYSCALL(sys_mkdirat,compat_sys_mkdirat)
@@ -326,31 +326,31 @@ SYSCALL(sys_fallocate,compat_sys_s390_fallocate)
SYSCALL(sys_utimensat,compat_sys_utimensat) /* 315 */
SYSCALL(sys_signalfd,compat_sys_signalfd)
NI_SYSCALL /* 317 old sys_timer_fd */
-SYSCALL(sys_eventfd,compat_sys_eventfd)
-SYSCALL(sys_timerfd_create,compat_sys_timerfd_create)
+SYSCALL(sys_eventfd,sys_eventfd)
+SYSCALL(sys_timerfd_create,sys_timerfd_create)
SYSCALL(sys_timerfd_settime,compat_sys_timerfd_settime) /* 320 */
SYSCALL(sys_timerfd_gettime,compat_sys_timerfd_gettime)
SYSCALL(sys_signalfd4,compat_sys_signalfd4)
-SYSCALL(sys_eventfd2,compat_sys_eventfd2)
-SYSCALL(sys_inotify_init1,compat_sys_inotify_init1)
+SYSCALL(sys_eventfd2,sys_eventfd2)
+SYSCALL(sys_inotify_init1,sys_inotify_init1)
SYSCALL(sys_pipe2,compat_sys_pipe2) /* 325 */
-SYSCALL(sys_dup3,compat_sys_dup3)
-SYSCALL(sys_epoll_create1,compat_sys_epoll_create1)
+SYSCALL(sys_dup3,sys_dup3)
+SYSCALL(sys_epoll_create1,sys_epoll_create1)
SYSCALL(sys_preadv,compat_sys_preadv)
SYSCALL(sys_pwritev,compat_sys_pwritev)
SYSCALL(sys_rt_tgsigqueueinfo,compat_sys_rt_tgsigqueueinfo) /* 330 */
SYSCALL(sys_perf_event_open,compat_sys_perf_event_open)
-SYSCALL(sys_fanotify_init,compat_sys_fanotify_init)
+SYSCALL(sys_fanotify_init,sys_fanotify_init)
SYSCALL(sys_fanotify_mark,compat_sys_fanotify_mark)
SYSCALL(sys_prlimit64,compat_sys_prlimit64)
SYSCALL(sys_name_to_handle_at,compat_sys_name_to_handle_at) /* 335 */
SYSCALL(sys_open_by_handle_at,compat_sys_open_by_handle_at)
SYSCALL(sys_clock_adjtime,compat_sys_clock_adjtime)
-SYSCALL(sys_syncfs,compat_sys_syncfs)
-SYSCALL(sys_setns,compat_sys_setns)
+SYSCALL(sys_syncfs,sys_syncfs)
+SYSCALL(sys_setns,sys_setns)
SYSCALL(sys_process_vm_readv,compat_sys_process_vm_readv) /* 340 */
SYSCALL(sys_process_vm_writev,compat_sys_process_vm_writev)
-SYSCALL(sys_s390_runtime_instr,compat_sys_s390_runtime_instr)
+SYSCALL(sys_s390_runtime_instr,sys_s390_runtime_instr)
SYSCALL(sys_kcmp,compat_sys_kcmp)
SYSCALL(sys_finit_module,compat_sys_finit_module)
SYSCALL(sys_sched_setattr,compat_sys_sched_setattr) /* 345 */
@@ -363,3 +363,22 @@ SYSCALL(sys_bpf,compat_sys_bpf)
SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
SYSCALL(sys_execveat,compat_sys_execveat)
+SYSCALL(sys_userfaultfd,sys_userfaultfd) /* 355 */
+SYSCALL(sys_membarrier,sys_membarrier)
+SYSCALL(sys_recvmmsg,compat_sys_recvmmsg)
+SYSCALL(sys_sendmmsg,compat_sys_sendmmsg)
+SYSCALL(sys_socket,sys_socket)
+SYSCALL(sys_socketpair,compat_sys_socketpair) /* 360 */
+SYSCALL(sys_bind,sys_bind)
+SYSCALL(sys_connect,sys_connect)
+SYSCALL(sys_listen,sys_listen)
+SYSCALL(sys_accept4,sys_accept4)
+SYSCALL(sys_getsockopt,compat_sys_getsockopt) /* 365 */
+SYSCALL(sys_setsockopt,compat_sys_setsockopt)
+SYSCALL(sys_getsockname,compat_sys_getsockname)
+SYSCALL(sys_getpeername,compat_sys_getpeername)
+SYSCALL(sys_sendto,compat_sys_sendto)
+SYSCALL(sys_sendmsg,compat_sys_sendmsg) /* 370 */
+SYSCALL(sys_recvfrom,compat_sys_recvfrom)
+SYSCALL(sys_recvmsg,compat_sys_recvmsg)
+SYSCALL(sys_shutdown,sys_shutdown)
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index b9ce650e9e99..c8653435c70d 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -89,17 +89,21 @@ static int do_account_vtime(struct task_struct *tsk, int hardirq_offset)
if (smp_cpu_mtid &&
time_after64(jiffies_64, __this_cpu_read(mt_scaling_jiffies))) {
u64 cycles_new[32], *cycles_old;
- u64 delta, mult, div;
+ u64 delta, fac, mult, div;
cycles_old = this_cpu_ptr(mt_cycles);
if (stcctm5(smp_cpu_mtid + 1, cycles_new) < 2) {
+ fac = 1;
mult = div = 0;
for (i = 0; i <= smp_cpu_mtid; i++) {
delta = cycles_new[i] - cycles_old[i];
- mult += delta;
- div += (i + 1) * delta;
+ div += delta;
+ mult *= i + 1;
+ mult += delta * fac;
+ fac *= i + 1;
}
- if (mult > 0) {
+ div *= fac;
+ if (div > 0) {
/* Update scaling factor */
__this_cpu_write(mt_scaling_mult, mult);
__this_cpu_write(mt_scaling_div, div);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index d60c88df5234..4b3b6f8aff0c 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -968,7 +968,8 @@ static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone);
/*
* Generate a new unfragmented bio with the given size
- * This should never violate the device limitations
+ * This should never violate the device limitations (but only because
+ * max_segment_size is being constrained to PAGE_SIZE).
*
* This function may be called concurrently. If we allocate from the mempool
* concurrently, there is a possibility of deadlock. For example, if we have
@@ -2045,9 +2046,20 @@ static int crypt_iterate_devices(struct dm_target *ti,
return fn(ti, cc->dev, cc->start, ti->len, data);
}
+static void crypt_io_hints(struct dm_target *ti, struct queue_limits *limits)
+{
+ /*
+ * Unfortunate constraint that is required to avoid the potential
+ * for exceeding underlying device's max_segments limits -- due to
+ * crypt_alloc_buffer() possibly allocating pages for the encryption
+ * bio that are not as physically contiguous as the original bio.
+ */
+ limits->max_segment_size = PAGE_SIZE;
+}
+
static struct target_type crypt_target = {
.name = "crypt",
- .version = {1, 14, 0},
+ .version = {1, 14, 1},
.module = THIS_MODULE,
.ctr = crypt_ctr,
.dtr = crypt_dtr,
@@ -2058,6 +2070,7 @@ static struct target_type crypt_target = {
.resume = crypt_resume,
.message = crypt_message,
.iterate_devices = crypt_iterate_devices,
+ .io_hints = crypt_io_hints,
};
static int __init dm_crypt_init(void)
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 6578b7bc1fbb..6fcbfb063366 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -4249,6 +4249,10 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
{
struct thin_c *tc = ti->private;
struct pool *pool = tc->pool;
+ struct queue_limits *pool_limits = dm_get_queue_limits(pool->pool_md);
+
+ if (!pool_limits->discard_granularity)
+ return; /* pool's discard support is disabled */
limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
limits->max_discard_sectors = 2048 * 1024 * 16; /* 16G */
diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c
index d3d1891cda3c..25abd4eb7d10 100644
--- a/drivers/sh/pm_runtime.c
+++ b/drivers/sh/pm_runtime.c
@@ -35,20 +35,11 @@ static struct pm_clk_notifier_block platform_bus_notifier = {
static int __init sh_pm_runtime_init(void)
{
if (IS_ENABLED(CONFIG_ARCH_SHMOBILE_MULTI)) {
- if (!of_machine_is_compatible("renesas,emev2") &&
- !of_machine_is_compatible("renesas,r7s72100") &&
-#ifndef CONFIG_PM_GENERIC_DOMAINS_OF
- !of_machine_is_compatible("renesas,r8a73a4") &&
- !of_machine_is_compatible("renesas,r8a7740") &&
- !of_machine_is_compatible("renesas,sh73a0") &&
-#endif
- !of_machine_is_compatible("renesas,r8a7778") &&
- !of_machine_is_compatible("renesas,r8a7779") &&
- !of_machine_is_compatible("renesas,r8a7790") &&
- !of_machine_is_compatible("renesas,r8a7791") &&
- !of_machine_is_compatible("renesas,r8a7792") &&
- !of_machine_is_compatible("renesas,r8a7793") &&
- !of_machine_is_compatible("renesas,r8a7794"))
+ if (!of_find_compatible_node(NULL, NULL,
+ "renesas,cpg-mstp-clocks"))
+ return 0;
+ if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS_OF) &&
+ of_find_node_with_property(NULL, "#power-domain-cells"))
return 0;
}
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 4d8fcf2187dc..8492721b39be 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -473,31 +473,8 @@ struct cgroup_subsys {
unsigned int depends_on;
};
-extern struct percpu_rw_semaphore cgroup_threadgroup_rwsem;
-
-/**
- * cgroup_threadgroup_change_begin - threadgroup exclusion for cgroups
- * @tsk: target task
- *
- * Called from threadgroup_change_begin() and allows cgroup operations to
- * synchronize against threadgroup changes using a percpu_rw_semaphore.
- */
-static inline void cgroup_threadgroup_change_begin(struct task_struct *tsk)
-{
- percpu_down_read(&cgroup_threadgroup_rwsem);
-}
-
-/**
- * cgroup_threadgroup_change_end - threadgroup exclusion for cgroups
- * @tsk: target task
- *
- * Called from threadgroup_change_end(). Counterpart of
- * cgroup_threadcgroup_change_begin().
- */
-static inline void cgroup_threadgroup_change_end(struct task_struct *tsk)
-{
- percpu_up_read(&cgroup_threadgroup_rwsem);
-}
+void cgroup_threadgroup_change_begin(struct task_struct *tsk);
+void cgroup_threadgroup_change_end(struct task_struct *tsk);
#else /* CONFIG_CGROUPS */
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index d0b380ee7d67..e38681f4912d 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -25,6 +25,13 @@
extern struct files_struct init_files;
extern struct fs_struct init_fs;
+#ifdef CONFIG_CGROUPS
+#define INIT_GROUP_RWSEM(sig) \
+ .group_rwsem = __RWSEM_INITIALIZER(sig.group_rwsem),
+#else
+#define INIT_GROUP_RWSEM(sig)
+#endif
+
#ifdef CONFIG_CPUSETS
#define INIT_CPUSET_SEQ(tsk) \
.mems_allowed_seq = SEQCNT_ZERO(tsk.mems_allowed_seq),
@@ -57,6 +64,7 @@ extern struct fs_struct init_fs;
INIT_PREV_CPUTIME(sig) \
.cred_guard_mutex = \
__MUTEX_INITIALIZER(sig.cred_guard_mutex), \
+ INIT_GROUP_RWSEM(sig) \
}
extern struct nsproxy init_nsproxy;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a4ab9daa387c..b7b9501b41af 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -762,6 +762,18 @@ struct signal_struct {
unsigned audit_tty_log_passwd;
struct tty_audit_buf *tty_audit_buf;
#endif
+#ifdef CONFIG_CGROUPS
+ /*
+ * group_rwsem prevents new tasks from entering the threadgroup and
+ * member tasks from exiting,a more specifically, setting of
+ * PF_EXITING. fork and exit paths are protected with this rwsem
+ * using threadgroup_change_begin/end(). Users which require
+ * threadgroup to remain stable should use threadgroup_[un]lock()
+ * which also takes care of exec path. Currently, cgroup is the
+ * only user.
+ */
+ struct rw_semaphore group_rwsem;
+#endif
oom_flags_t oom_flags;
short oom_score_adj; /* OOM kill score adjustment */
diff --git a/include/linux/security.h b/include/linux/security.h
index 79d85ddf8093..2f4c1f7aa7db 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -946,7 +946,7 @@ static inline int security_task_prctl(int option, unsigned long arg2,
unsigned long arg4,
unsigned long arg5)
{
- return cap_task_prctl(option, arg2, arg3, arg3, arg5);
+ return cap_task_prctl(option, arg2, arg3, arg4, arg5);
}
static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 2cf0f79f1fc9..2c9eae6ad970 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -46,7 +46,6 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/rwsem.h>
-#include <linux/percpu-rwsem.h>
#include <linux/string.h>
#include <linux/sort.h>
#include <linux/kmod.h>
@@ -104,8 +103,6 @@ static DEFINE_SPINLOCK(cgroup_idr_lock);
*/
static DEFINE_SPINLOCK(release_agent_path_lock);
-struct percpu_rw_semaphore cgroup_threadgroup_rwsem;
-
#define cgroup_assert_mutex_or_rcu_locked() \
RCU_LOCKDEP_WARN(!rcu_read_lock_held() && \
!lockdep_is_held(&cgroup_mutex), \
@@ -874,6 +871,48 @@ static struct css_set *find_css_set(struct css_set *old_cset,
return cset;
}
+void cgroup_threadgroup_change_begin(struct task_struct *tsk)
+{
+ down_read(&tsk->signal->group_rwsem);
+}
+
+void cgroup_threadgroup_change_end(struct task_struct *tsk)
+{
+ up_read(&tsk->signal->group_rwsem);
+}
+
+/**
+ * threadgroup_lock - lock threadgroup
+ * @tsk: member task of the threadgroup to lock
+ *
+ * Lock the threadgroup @tsk belongs to. No new task is allowed to enter
+ * and member tasks aren't allowed to exit (as indicated by PF_EXITING) or
+ * change ->group_leader/pid. This is useful for cases where the threadgroup
+ * needs to stay stable across blockable operations.
+ *
+ * fork and exit explicitly call threadgroup_change_{begin|end}() for
+ * synchronization. While held, no new task will be added to threadgroup
+ * and no existing live task will have its PF_EXITING set.
+ *
+ * de_thread() does threadgroup_change_{begin|end}() when a non-leader
+ * sub-thread becomes a new leader.
+ */
+static void threadgroup_lock(struct task_struct *tsk)
+{
+ down_write(&tsk->signal->group_rwsem);
+}
+
+/**
+ * threadgroup_unlock - unlock threadgroup
+ * @tsk: member task of the threadgroup to unlock
+ *
+ * Reverse threadgroup_lock().
+ */
+static inline void threadgroup_unlock(struct task_struct *tsk)
+{
+ up_write(&tsk->signal->group_rwsem);
+}
+
static struct cgroup_root *cgroup_root_from_kf(struct kernfs_root *kf_root)
{
struct cgroup *root_cgrp = kf_root->kn->priv;
@@ -2074,9 +2113,9 @@ static void cgroup_task_migrate(struct cgroup *old_cgrp,
lockdep_assert_held(&css_set_rwsem);
/*
- * We are synchronized through cgroup_threadgroup_rwsem against
- * PF_EXITING setting such that we can't race against cgroup_exit()
- * changing the css_set to init_css_set and dropping the old one.
+ * We are synchronized through threadgroup_lock() against PF_EXITING
+ * setting such that we can't race against cgroup_exit() changing the
+ * css_set to init_css_set and dropping the old one.
*/
WARN_ON_ONCE(tsk->flags & PF_EXITING);
old_cset = task_css_set(tsk);
@@ -2133,11 +2172,10 @@ static void cgroup_migrate_finish(struct list_head *preloaded_csets)
* @src_cset and add it to @preloaded_csets, which should later be cleaned
* up by cgroup_migrate_finish().
*
- * This function may be called without holding cgroup_threadgroup_rwsem
- * even if the target is a process. Threads may be created and destroyed
- * but as long as cgroup_mutex is not dropped, no new css_set can be put
- * into play and the preloaded css_sets are guaranteed to cover all
- * migrations.
+ * This function may be called without holding threadgroup_lock even if the
+ * target is a process. Threads may be created and destroyed but as long
+ * as cgroup_mutex is not dropped, no new css_set can be put into play and
+ * the preloaded css_sets are guaranteed to cover all migrations.
*/
static void cgroup_migrate_add_src(struct css_set *src_cset,
struct cgroup *dst_cgrp,
@@ -2240,7 +2278,7 @@ err:
* @threadgroup: whether @leader points to the whole process or a single task
*
* Migrate a process or task denoted by @leader to @cgrp. If migrating a
- * process, the caller must be holding cgroup_threadgroup_rwsem. The
+ * process, the caller must be holding threadgroup_lock of @leader. The
* caller is also responsible for invoking cgroup_migrate_add_src() and
* cgroup_migrate_prepare_dst() on the targets before invoking this
* function and following up with cgroup_migrate_finish().
@@ -2368,7 +2406,7 @@ out_release_tset:
* @leader: the task or the leader of the threadgroup to be attached
* @threadgroup: attach the whole threadgroup?
*
- * Call holding cgroup_mutex and cgroup_threadgroup_rwsem.
+ * Call holding cgroup_mutex and threadgroup_lock of @leader.
*/
static int cgroup_attach_task(struct cgroup *dst_cgrp,
struct task_struct *leader, bool threadgroup)
@@ -2460,13 +2498,14 @@ static ssize_t __cgroup_procs_write(struct kernfs_open_file *of, char *buf,
if (!cgrp)
return -ENODEV;
- percpu_down_write(&cgroup_threadgroup_rwsem);
+retry_find_task:
rcu_read_lock();
if (pid) {
tsk = find_task_by_vpid(pid);
if (!tsk) {
+ rcu_read_unlock();
ret = -ESRCH;
- goto out_unlock_rcu;
+ goto out_unlock_cgroup;
}
} else {
tsk = current;
@@ -2482,23 +2521,37 @@ static ssize_t __cgroup_procs_write(struct kernfs_open_file *of, char *buf,
*/
if (tsk == kthreadd_task || (tsk->flags & PF_NO_SETAFFINITY)) {
ret = -EINVAL;
- goto out_unlock_rcu;
+ rcu_read_unlock();
+ goto out_unlock_cgroup;
}
get_task_struct(tsk);
rcu_read_unlock();
+ threadgroup_lock(tsk);
+ if (threadgroup) {
+ if (!thread_group_leader(tsk)) {
+ /*
+ * a race with de_thread from another thread's exec()
+ * may strip us of our leadership, if this happens,
+ * there is no choice but to throw this task away and
+ * try again; this is
+ * "double-double-toil-and-trouble-check locking".
+ */
+ threadgroup_unlock(tsk);
+ put_task_struct(tsk);
+ goto retry_find_task;
+ }
+ }
+
ret = cgroup_procs_write_permission(tsk, cgrp, of);
if (!ret)
ret = cgroup_attach_task(cgrp, tsk, threadgroup);
- put_task_struct(tsk);
- goto out_unlock_threadgroup;
+ threadgroup_unlock(tsk);
-out_unlock_rcu:
- rcu_read_unlock();
-out_unlock_threadgroup:
- percpu_up_write(&cgroup_threadgroup_rwsem);
+ put_task_struct(tsk);
+out_unlock_cgroup:
cgroup_kn_unlock(of->kn);
return ret ?: nbytes;
}
@@ -2643,8 +2696,6 @@ static int cgroup_update_dfl_csses(struct cgroup *cgrp)
lockdep_assert_held(&cgroup_mutex);
- percpu_down_write(&cgroup_threadgroup_rwsem);
-
/* look up all csses currently attached to @cgrp's subtree */
down_read(&css_set_rwsem);
css_for_each_descendant_pre(css, cgroup_css(cgrp, NULL)) {
@@ -2700,8 +2751,17 @@ static int cgroup_update_dfl_csses(struct cgroup *cgrp)
goto out_finish;
last_task = task;
+ threadgroup_lock(task);
+ /* raced against de_thread() from another thread? */
+ if (!thread_group_leader(task)) {
+ threadgroup_unlock(task);
+ put_task_struct(task);
+ continue;
+ }
+
ret = cgroup_migrate(src_cset->dfl_cgrp, task, true);
+ threadgroup_unlock(task);
put_task_struct(task);
if (WARN(ret, "cgroup: failed to update controllers for the default hierarchy (%d), further operations may crash or hang\n", ret))
@@ -2711,7 +2771,6 @@ static int cgroup_update_dfl_csses(struct cgroup *cgrp)
out_finish:
cgroup_migrate_finish(&preloaded_csets);
- percpu_up_write(&cgroup_threadgroup_rwsem);
return ret;
}
@@ -5024,7 +5083,6 @@ int __init cgroup_init(void)
unsigned long key;
int ssid, err;
- BUG_ON(percpu_init_rwsem(&cgroup_threadgroup_rwsem));
BUG_ON(cgroup_init_cftypes(NULL, cgroup_dfl_base_files));
BUG_ON(cgroup_init_cftypes(NULL, cgroup_legacy_base_files));
diff --git a/kernel/fork.c b/kernel/fork.c
index 7d5f0f118a63..2845623fb582 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1149,6 +1149,10 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
tty_audit_fork(sig);
sched_autogroup_fork(sig);
+#ifdef CONFIG_CGROUPS
+ init_rwsem(&sig->group_rwsem);
+#endif
+
sig->oom_score_adj = current->signal->oom_score_adj;
sig->oom_score_adj_min = current->signal->oom_score_adj_min;
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index 2c7cca6f26a4..7c1d958857d2 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -72,6 +72,8 @@
#define __NR_userfaultfd 374
#elif defined(__powewrpc__)
#define __NR_userfaultfd 364
+#elif defined(__s390__)
+#define __NR_userfaultfd 355
#else
#error "missing __NR_userfaultfd definition"
#endif
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-25 06:32:12 +0000