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-rw-r--r--arch/sh/kernel/cpu/sh4/sq.c3
-rw-r--r--arch/sh/kernel/crash_dump.c29
-rw-r--r--arch/sh/kernel/io_trapped.c9
-rw-r--r--arch/sh/kernel/process_32.c14
-rw-r--r--arch/sh/kernel/ptrace_32.c5
-rw-r--r--arch/sh/kernel/reboot.c3
-rw-r--r--arch/sh/kernel/signal_32.c4
-rw-r--r--arch/sh/kernel/syscalls/Makefile3
-rw-r--r--arch/sh/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/sh/kernel/topology.c5
-rw-r--r--arch/sh/kernel/traps.c2
-rw-r--r--arch/sh/kernel/traps_32.c30
12 files changed, 43 insertions, 65 deletions
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index d432164b23b7..a76b94e41e91 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -324,6 +324,7 @@ static struct attribute *sq_sysfs_attrs[] = {
&mapping_attr.attr,
NULL,
};
+ATTRIBUTE_GROUPS(sq_sysfs);
static const struct sysfs_ops sq_sysfs_ops = {
.show = sq_sysfs_show,
@@ -332,7 +333,7 @@ static const struct sysfs_ops sq_sysfs_ops = {
static struct kobj_type ktype_percpu_entry = {
.sysfs_ops = &sq_sysfs_ops,
- .default_attrs = sq_sysfs_attrs,
+ .default_groups = sq_sysfs_groups,
};
static int sq_dev_add(struct device *dev, struct subsys_interface *sif)
diff --git a/arch/sh/kernel/crash_dump.c b/arch/sh/kernel/crash_dump.c
index 5b41b59698c1..19ce6a950aac 100644
--- a/arch/sh/kernel/crash_dump.c
+++ b/arch/sh/kernel/crash_dump.c
@@ -8,23 +8,11 @@
#include <linux/errno.h>
#include <linux/crash_dump.h>
#include <linux/io.h>
+#include <linux/uio.h>
#include <linux/uaccess.h>
-/**
- * copy_oldmem_page - copy one page from "oldmem"
- * @pfn: page frame number to be copied
- * @buf: target memory address for the copy; this can be in kernel address
- * space or user address space (see @userbuf)
- * @csize: number of bytes to copy
- * @offset: offset in bytes into the page (based on pfn) to begin the copy
- * @userbuf: if set, @buf is in user address space, use copy_to_user(),
- * otherwise @buf is in kernel address space, use memcpy().
- *
- * Copy a page from "oldmem". For this page, there is no pte mapped
- * in the current kernel. We stitch up a pte, similar to kmap_atomic.
- */
-ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
- size_t csize, unsigned long offset, int userbuf)
+ssize_t copy_oldmem_page(struct iov_iter *iter, unsigned long pfn,
+ size_t csize, unsigned long offset)
{
void __iomem *vaddr;
@@ -32,15 +20,8 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
return 0;
vaddr = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE);
-
- if (userbuf) {
- if (copy_to_user((void __user *)buf, (vaddr + offset), csize)) {
- iounmap(vaddr);
- return -EFAULT;
- }
- } else
- memcpy(buf, (vaddr + offset), csize);
-
+ csize = copy_to_iter(vaddr + offset, csize, iter);
iounmap(vaddr);
+
return csize;
}
diff --git a/arch/sh/kernel/io_trapped.c b/arch/sh/kernel/io_trapped.c
index 004ad0130b10..e803b14ef12e 100644
--- a/arch/sh/kernel/io_trapped.c
+++ b/arch/sh/kernel/io_trapped.c
@@ -270,7 +270,6 @@ static struct mem_access trapped_io_access = {
int handle_trapped_io(struct pt_regs *regs, unsigned long address)
{
- mm_segment_t oldfs;
insn_size_t instruction;
int tmp;
@@ -281,16 +280,12 @@ int handle_trapped_io(struct pt_regs *regs, unsigned long address)
WARN_ON(user_mode(regs));
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- if (copy_from_user(&instruction, (void *)(regs->pc),
- sizeof(instruction))) {
- set_fs(oldfs);
+ if (copy_from_kernel_nofault(&instruction, (void *)(regs->pc),
+ sizeof(instruction))) {
return 0;
}
tmp = handle_unaligned_access(instruction, regs,
&trapped_io_access, 1, address);
- set_fs(oldfs);
return tmp == 0;
}
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 1c28e3cddb60..a808843375e7 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -92,9 +92,11 @@ void release_thread(struct task_struct *dead_task)
asmlinkage void ret_from_fork(void);
asmlinkage void ret_from_kernel_thread(void);
-int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg,
- struct task_struct *p, unsigned long tls)
+int copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
{
+ unsigned long clone_flags = args->flags;
+ unsigned long usp = args->stack;
+ unsigned long tls = args->tls;
struct thread_info *ti = task_thread_info(p);
struct pt_regs *childregs;
@@ -114,16 +116,15 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg,
childregs = task_pt_regs(p);
p->thread.sp = (unsigned long) childregs;
- if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
+ if (unlikely(args->fn)) {
memset(childregs, 0, sizeof(struct pt_regs));
p->thread.pc = (unsigned long) ret_from_kernel_thread;
- childregs->regs[4] = arg;
- childregs->regs[5] = usp;
+ childregs->regs[4] = (unsigned long) args->fn_arg;
+ childregs->regs[5] = (unsigned long) args->fn;
childregs->sr = SR_MD;
#if defined(CONFIG_SH_FPU)
childregs->sr |= SR_FD;
#endif
- ti->addr_limit = KERNEL_DS;
ti->status &= ~TS_USEDFPU;
p->thread.fpu_counter = 0;
return 0;
@@ -132,7 +133,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg,
if (usp)
childregs->regs[15] = usp;
- ti->addr_limit = USER_DS;
if (clone_flags & CLONE_SETTLS)
childregs->gbr = tls;
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 5281685f6ad1..d417988d9770 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -20,7 +20,6 @@
#include <linux/io.h>
#include <linux/audit.h>
#include <linux/seccomp.h>
-#include <linux/tracehook.h>
#include <linux/elf.h>
#include <linux/regset.h>
#include <linux/hw_breakpoint.h>
@@ -456,7 +455,7 @@ long arch_ptrace(struct task_struct *child, long request,
asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
{
if (test_thread_flag(TIF_SYSCALL_TRACE) &&
- tracehook_report_syscall_entry(regs)) {
+ ptrace_report_syscall_entry(regs)) {
regs->regs[0] = -ENOSYS;
return -1;
}
@@ -484,5 +483,5 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
step = test_thread_flag(TIF_SINGLESTEP);
if (step || test_thread_flag(TIF_SYSCALL_TRACE))
- tracehook_report_syscall_exit(regs, step);
+ ptrace_report_syscall_exit(regs, step);
}
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index 5c33f036418b..e8eeedc9b182 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -46,8 +46,7 @@ static void native_machine_shutdown(void)
static void native_machine_power_off(void)
{
- if (pm_power_off)
- pm_power_off();
+ do_kernel_power_off();
}
static void native_machine_halt(void)
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index dd3092911efa..90f495d35db2 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -25,7 +25,7 @@
#include <linux/personality.h>
#include <linux/binfmts.h>
#include <linux/io.h>
-#include <linux/tracehook.h>
+#include <linux/resume_user_mode.h>
#include <asm/ucontext.h>
#include <linux/uaccess.h>
#include <asm/cacheflush.h>
@@ -503,5 +503,5 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0,
do_signal(regs, save_r0);
if (thread_info_flags & _TIF_NOTIFY_RESUME)
- tracehook_notify_resume(regs);
+ resume_user_mode_work(regs);
}
diff --git a/arch/sh/kernel/syscalls/Makefile b/arch/sh/kernel/syscalls/Makefile
index 6713c65a25e1..b265e4bc16c2 100644
--- a/arch/sh/kernel/syscalls/Makefile
+++ b/arch/sh/kernel/syscalls/Makefile
@@ -2,8 +2,7 @@
kapi := arch/$(SRCARCH)/include/generated/asm
uapi := arch/$(SRCARCH)/include/generated/uapi/asm
-_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
- $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+$(shell mkdir -p $(uapi) $(kapi))
syscall := $(src)/syscall.tbl
syshdr := $(srctree)/scripts/syscallhdr.sh
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index d9539d28bdaa..2de85c977f54 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -452,3 +452,4 @@
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
+450 common set_mempolicy_home_node sys_set_mempolicy_home_node
diff --git a/arch/sh/kernel/topology.c b/arch/sh/kernel/topology.c
index 76af6db9daa2..2d2a7509b565 100644
--- a/arch/sh/kernel/topology.c
+++ b/arch/sh/kernel/topology.c
@@ -46,11 +46,6 @@ static int __init topology_init(void)
{
int i, ret;
-#ifdef CONFIG_NUMA
- for_each_online_node(i)
- register_one_node(i);
-#endif
-
for_each_present_cpu(i) {
struct cpu *c = &per_cpu(cpu_devices, i);
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index cbe3201d4f21..01884054aeb2 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -57,7 +57,7 @@ void __noreturn die(const char *str, struct pt_regs *regs, long err)
if (panic_on_oops)
panic("Fatal exception");
- do_exit(SIGSEGV);
+ make_task_dead(SIGSEGV);
}
void die_if_kernel(const char *str, struct pt_regs *regs, long err)
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index b3c715bc254b..6cdda3a621a1 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -75,6 +75,23 @@ static struct mem_access user_mem_access = {
copy_to_user,
};
+static unsigned long copy_from_kernel_wrapper(void *dst, const void __user *src,
+ unsigned long cnt)
+{
+ return copy_from_kernel_nofault(dst, (const void __force *)src, cnt);
+}
+
+static unsigned long copy_to_kernel_wrapper(void __user *dst, const void *src,
+ unsigned long cnt)
+{
+ return copy_to_kernel_nofault((void __force *)dst, src, cnt);
+}
+
+static struct mem_access kernel_mem_access = {
+ copy_from_kernel_wrapper,
+ copy_to_kernel_wrapper,
+};
+
/*
* handle an instruction that does an unaligned memory access by emulating the
* desired behaviour
@@ -473,7 +490,6 @@ asmlinkage void do_address_error(struct pt_regs *regs,
unsigned long address)
{
unsigned long error_code = 0;
- mm_segment_t oldfs;
insn_size_t instruction;
int tmp;
@@ -489,13 +505,10 @@ asmlinkage void do_address_error(struct pt_regs *regs,
local_irq_enable();
inc_unaligned_user_access();
- oldfs = force_uaccess_begin();
if (copy_from_user(&instruction, (insn_size_t __user *)(regs->pc & ~1),
sizeof(instruction))) {
- force_uaccess_end(oldfs);
goto uspace_segv;
}
- force_uaccess_end(oldfs);
/* shout about userspace fixups */
unaligned_fixups_notify(current, instruction, regs);
@@ -518,11 +531,9 @@ fixup:
goto uspace_segv;
}
- oldfs = force_uaccess_begin();
tmp = handle_unaligned_access(instruction, regs,
&user_mem_access, 0,
address);
- force_uaccess_end(oldfs);
if (tmp == 0)
return; /* sorted */
@@ -538,21 +549,18 @@ uspace_segv:
if (regs->pc & 1)
die("unaligned program counter", regs, error_code);
- set_fs(KERNEL_DS);
- if (copy_from_user(&instruction, (void __user *)(regs->pc),
+ if (copy_from_kernel_nofault(&instruction, (void *)(regs->pc),
sizeof(instruction))) {
/* Argh. Fault on the instruction itself.
This should never happen non-SMP
*/
- set_fs(oldfs);
die("insn faulting in do_address_error", regs, 0);
}
unaligned_fixups_notify(current, instruction, regs);
- handle_unaligned_access(instruction, regs, &user_mem_access,
+ handle_unaligned_access(instruction, regs, &kernel_mem_access,
0, address);
- set_fs(oldfs);
}
}