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-rw-r--r--arch/s390/kernel/compat_linux.c72
-rw-r--r--arch/s390/kernel/debug.c3
-rw-r--r--arch/s390/kernel/entry.S1
-rw-r--r--arch/s390/kernel/entry64.S1
-rw-r--r--arch/s390/kernel/ipl.c6
-rw-r--r--arch/s390/kernel/process.c3
-rw-r--r--arch/s390/kernel/ptrace.c10
-rw-r--r--arch/s390/kernel/setup.c8
-rw-r--r--arch/s390/kernel/signal.c12
-rw-r--r--arch/s390/kernel/smp.c9
-rw-r--r--arch/s390/kernel/sys_s390.c30
-rw-r--r--arch/s390/kernel/topology.c2
-rw-r--r--arch/s390/kernel/traps.c6
13 files changed, 50 insertions, 113 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 25c31d681402..11c3aba664ea 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -616,75 +616,35 @@ asmlinkage long sys32_fstatat64(unsigned int dfd, char __user *filename,
*/
struct mmap_arg_struct_emu31 {
- u32 addr;
- u32 len;
- u32 prot;
- u32 flags;
- u32 fd;
- u32 offset;
+ compat_ulong_t addr;
+ compat_ulong_t len;
+ compat_ulong_t prot;
+ compat_ulong_t flags;
+ compat_ulong_t fd;
+ compat_ulong_t offset;
};
-/* common code for old and new mmaps */
-static inline long do_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- struct file * file = NULL;
- unsigned long error = -EBADF;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- down_write(&current->mm->mmap_sem);
- error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- if (!IS_ERR((void *) error) && error + len >= 0x80000000ULL) {
- /* Result is out of bounds. */
- do_munmap(current->mm, addr, len);
- error = -ENOMEM;
- }
- up_write(&current->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return error;
-}
-
-
-asmlinkage unsigned long
-old32_mmap(struct mmap_arg_struct_emu31 __user *arg)
+asmlinkage unsigned long old32_mmap(struct mmap_arg_struct_emu31 __user *arg)
{
struct mmap_arg_struct_emu31 a;
- int error = -EFAULT;
if (copy_from_user(&a, arg, sizeof(a)))
- goto out;
-
- error = -EINVAL;
+ return -EFAULT;
if (a.offset & ~PAGE_MASK)
- goto out;
-
- error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT);
-out:
- return error;
+ return -EINVAL;
+ a.addr = (unsigned long) compat_ptr(a.addr);
+ return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd,
+ a.offset >> PAGE_SHIFT);
}
-asmlinkage long
-sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg)
+asmlinkage long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg)
{
struct mmap_arg_struct_emu31 a;
- int error = -EFAULT;
if (copy_from_user(&a, arg, sizeof(a)))
- goto out;
- error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
-out:
- return error;
+ return -EFAULT;
+ a.addr = (unsigned long) compat_ptr(a.addr);
+ return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
}
asmlinkage long sys32_read(unsigned int fd, char __user * buf, size_t count)
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 071c81f179ef..0168472b2fdf 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -18,6 +18,7 @@
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/ctype.h>
+#include <linux/string.h>
#include <linux/sysctl.h>
#include <asm/uaccess.h>
#include <linux/module.h>
@@ -1178,7 +1179,7 @@ debug_get_uint(char *buf)
{
int rc;
- for(; isspace(*buf); buf++);
+ buf = skip_spaces(buf);
rc = simple_strtoul(buf, &buf, 10);
if(*buf){
rc = -EINVAL;
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 48215d15762b..e8ef21c51bbe 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -571,6 +571,7 @@ pgm_svcper:
mvc __THREAD_per+__PER_access_id(1,%r8),__LC_PER_ACCESS_ID
oi __TI_flags+3(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
TRACE_IRQS_ON
+ lm %r2,%r6,SP_R2(%r15) # load svc arguments
stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
b BASED(sysc_do_svc)
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 9aff1d449b6e..f33658f09dd7 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -549,6 +549,7 @@ pgm_svcper:
mvc __THREAD_per+__PER_access_id(1,%r8),__LC_PER_ACCESS_ID
oi __TI_flags+7(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
TRACE_IRQS_ON
+ lmg %r2,%r6,SP_R2(%r15) # load svc arguments
stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
j sysc_do_svc
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 4890ac6d7faa..4d73296fed74 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -221,7 +221,7 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \
const char *buf, size_t len) \
{ \
strncpy(_value, buf, sizeof(_value) - 1); \
- strstrip(_value); \
+ strim(_value); \
return len; \
} \
static struct kobj_attribute sys_##_prefix##_##_name##_attr = \
@@ -472,7 +472,7 @@ static ssize_t ipl_ccw_loadparm_show(struct kobject *kobj,
return sprintf(page, "#unknown#\n");
memcpy(loadparm, &sclp_ipl_info.loadparm, LOADPARM_LEN);
EBCASC(loadparm, LOADPARM_LEN);
- strstrip(loadparm);
+ strim(loadparm);
return sprintf(page, "%s\n", loadparm);
}
@@ -776,7 +776,7 @@ static void reipl_get_ascii_loadparm(char *loadparm,
memcpy(loadparm, ibp->ipl_info.ccw.load_parm, LOADPARM_LEN);
EBCASC(loadparm, LOADPARM_LEN);
loadparm[LOADPARM_LEN] = 0;
- strstrip(loadparm);
+ strim(loadparm);
}
static ssize_t reipl_generic_loadparm_show(struct ipl_parameter_block *ipb,
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 5417eb57271a..00b6d1d292f2 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -153,8 +153,6 @@ void exit_thread(void)
void flush_thread(void)
{
- clear_used_math();
- clear_tsk_thread_flag(current, TIF_USEDFPU);
}
void release_thread(struct task_struct *dead_task)
@@ -217,6 +215,7 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
p->thread.mm_segment = get_fs();
/* Don't copy debug registers */
memset(&p->thread.per_info, 0, sizeof(p->thread.per_info));
+ clear_tsk_thread_flag(p, TIF_SINGLE_STEP);
/* Initialize per thread user and system timer values */
ti = task_thread_info(p);
ti->user_timer = 0;
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 653c6a178740..7cf464234419 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -65,6 +65,7 @@ FixPerRegisters(struct task_struct *task)
{
struct pt_regs *regs;
per_struct *per_info;
+ per_cr_words cr_words;
regs = task_pt_regs(task);
per_info = (per_struct *) &task->thread.per_info;
@@ -98,6 +99,13 @@ FixPerRegisters(struct task_struct *task)
per_info->control_regs.bits.storage_alt_space_ctl = 1;
else
per_info->control_regs.bits.storage_alt_space_ctl = 0;
+
+ if (task == current) {
+ __ctl_store(cr_words, 9, 11);
+ if (memcmp(&cr_words, &per_info->control_regs.words,
+ sizeof(cr_words)) != 0)
+ __ctl_load(per_info->control_regs.words, 9, 11);
+ }
}
void user_enable_single_step(struct task_struct *task)
@@ -959,7 +967,7 @@ static const struct user_regset s390_compat_regsets[] = {
.set = s390_fpregs_set,
},
[REGSET_GENERAL_EXTENDED] = {
- .core_note_type = NT_PRXSTATUS,
+ .core_note_type = NT_S390_HIGH_GPRS,
.n = sizeof(s390_compat_regs_high) / sizeof(compat_long_t),
.size = sizeof(compat_long_t),
.align = sizeof(compat_long_t),
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 0663287fa1b3..8d8957b38ab3 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -87,7 +87,6 @@ unsigned long elf_hwcap = 0;
char elf_platform[ELF_PLATFORM_SIZE];
struct mem_chunk __initdata memory_chunk[MEMORY_CHUNKS];
-volatile int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */
int __initdata memory_end_set;
unsigned long __initdata memory_end;
@@ -124,12 +123,6 @@ void __cpuinit cpu_init(void)
*/
get_cpu_id(&S390_lowcore.cpu_id);
- /*
- * Force FPU initialization:
- */
- clear_thread_flag(TIF_USEDFPU);
- clear_used_math();
-
atomic_inc(&init_mm.mm_count);
current->active_mm = &init_mm;
BUG_ON(current->mm);
@@ -855,7 +848,6 @@ setup_arch(char **cmdline_p)
setup_lowcore();
cpu_init();
- __cpu_logical_map[0] = stap();
s390_init_cpu_topology();
/*
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 6b4fef877f9d..6289945562b0 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -64,7 +64,7 @@ SYSCALL_DEFINE3(sigsuspend, int, history0, int, history1, old_sigset_t, mask)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
- current->state = TASK_INTERRUPTIBLE;
+ set_current_state(TASK_INTERRUPTIBLE);
schedule();
set_thread_flag(TIF_RESTORE_SIGMASK);
@@ -500,18 +500,10 @@ void do_signal(struct pt_regs *regs)
clear_thread_flag(TIF_RESTORE_SIGMASK);
/*
- * If we would have taken a single-step trap
- * for a normal instruction, act like we took
- * one for the handler setup.
- */
- if (current->thread.per_info.single_step)
- set_thread_flag(TIF_SINGLE_STEP);
-
- /*
* Let tracing know that we've done the handler setup.
*/
tracehook_signal_handler(signr, &info, &ka, regs,
- test_thread_flag(TIF_SINGLE_STEP));
+ current->thread.per_info.single_step);
}
return;
}
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 93e52039321b..76a6fdd46c45 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -52,6 +52,9 @@
#include <asm/cpu.h>
#include "entry.h"
+/* logical cpu to cpu address */
+int __cpu_logical_map[NR_CPUS];
+
static struct task_struct *current_set[NR_CPUS];
static u8 smp_cpu_type;
@@ -717,6 +720,12 @@ void __init smp_cpus_done(unsigned int max_cpus)
{
}
+void __init smp_setup_processor_id(void)
+{
+ S390_lowcore.cpu_nr = 0;
+ __cpu_logical_map[0] = stap();
+}
+
/*
* the frequency of the profiling timer can be changed
* by writing a multiplier value into /proc/profile.
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index e9d94f61d500..86a74c9c9e63 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -32,32 +32,6 @@
#include <asm/uaccess.h>
#include "entry.h"
-/* common code for old and new mmaps */
-static inline long do_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- long error = -EBADF;
- struct file * file = NULL;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- down_write(&current->mm->mmap_sem);
- error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(&current->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return error;
-}
-
/*
* Perform the select(nd, in, out, ex, tv) and mmap() system
* calls. Linux for S/390 isn't able to handle more than 5
@@ -81,7 +55,7 @@ SYSCALL_DEFINE1(mmap2, struct mmap_arg_struct __user *, arg)
if (copy_from_user(&a, arg, sizeof(a)))
goto out;
- error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
+ error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
out:
return error;
}
@@ -98,7 +72,7 @@ SYSCALL_DEFINE1(s390_old_mmap, struct mmap_arg_struct __user *, arg)
if (a.offset & ~PAGE_MASK)
goto out;
- error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT);
+ error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT);
out:
return error;
}
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 3c72c9cf22b6..14ef6f05e432 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -114,7 +114,7 @@ static void add_cpus_to_core(struct tl_cpu *tl_cpu, struct core_info *core)
rcpu = CPU_BITS - 1 - cpu + tl_cpu->origin;
for_each_present_cpu(lcpu) {
- if (__cpu_logical_map[lcpu] == rcpu) {
+ if (cpu_logical_map(lcpu) == rcpu) {
cpu_set(lcpu, core->mask);
smp_cpu_polarization[lcpu] = tl_cpu->pp;
}
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index c2e42cc65ce7..6e7ad63854c0 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -18,7 +18,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
-#include <linux/ptrace.h>
+#include <linux/tracehook.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/smp.h>
@@ -382,7 +382,7 @@ void __kprobes do_single_step(struct pt_regs *regs)
SIGTRAP) == NOTIFY_STOP){
return;
}
- if ((current->ptrace & PT_PTRACED) != 0)
+ if (tracehook_consider_fatal_signal(current, SIGTRAP))
force_sig(SIGTRAP, current);
}
@@ -483,7 +483,7 @@ static void illegal_op(struct pt_regs * regs, long interruption_code)
if (get_user(*((__u16 *) opcode), (__u16 __user *) location))
return;
if (*((__u16 *) opcode) == S390_BREAKPOINT_U16) {
- if (current->ptrace & PT_PTRACED)
+ if (tracehook_consider_fatal_signal(current, SIGTRAP))
force_sig(SIGTRAP, current);
else
signal = SIGILL;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 19:57:49 +0100