unreachable(); \
} while (0)
+#define __WARN() do { \
+ __EMIT_BUG(BUGFLAG_WARNING); \
+} while (0)
+
#define WARN_ON(x) ({ \
int __ret_warn_on = !!(x); \
if (__builtin_constant_p(__ret_warn_on)) { \
#ifndef __SIGP__
#define __SIGP__
-#include <asm/ptrace.h>
-#include <asm/atomic.h>
+#include <asm/system.h>
/* get real cpu address from logical cpu number */
-extern volatile int __cpu_logical_map[];
+extern int __cpu_logical_map[];
+
+static inline int cpu_logical_map(int cpu)
+{
+#ifdef CONFIG_SMP
+ return __cpu_logical_map[cpu];
+#else
+ return stap();
+#endif
+}
typedef enum
{
" ipm %0\n"
" srl %0,28\n"
: "=d" (ccode)
- : "d" (reg1), "d" (__cpu_logical_map[cpu_addr]),
+ : "d" (reg1), "d" (cpu_logical_map(cpu_addr)),
"a" (order_code) : "cc" , "memory");
return ccode;
}
" ipm %0\n"
" srl %0,28\n"
: "=d" (ccode)
- : "d" (reg1), "d" (__cpu_logical_map[cpu_addr]),
+ : "d" (reg1), "d" (cpu_logical_map(cpu_addr)),
"a" (order_code) : "cc" , "memory");
return ccode;
}
" ipm %0\n"
" srl %0,28\n"
: "=d" (ccode), "+d" (reg1)
- : "d" (__cpu_logical_map[cpu_addr]), "a" (order_code)
+ : "d" (cpu_logical_map(cpu_addr)), "a" (order_code)
: "cc" , "memory");
*statusptr = reg1;
return ccode;
#define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */
#define TIF_SECCOMP 10 /* secure computing */
#define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */
-#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
-#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling
+#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
-#define TIF_31BIT 18 /* 32bit process */
-#define TIF_MEMDIE 19
-#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
-#define TIF_FREEZE 21 /* thread is freezing for suspend */
+#define TIF_31BIT 17 /* 32bit process */
+#define TIF_MEMDIE 18
+#define TIF_RESTORE_SIGMASK 19 /* restore signal mask in do_signal() */
+#define TIF_FREEZE 20 /* thread is freezing for suspend */
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
-#define _TIF_USEDFPU (1<<TIF_USEDFPU)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_31BIT (1<<TIF_31BIT)
#define _TIF_FREEZE (1<<TIF_FREEZE)
#define __NR_pwritev 329
#define __NR_rt_tgsigqueueinfo 330
#define __NR_perf_event_open 331
-#define __NR_recvmmsg 332
-#define NR_syscalls 333
+#define NR_syscalls 332
/*
* There are some system calls that are not present on 64 bit, some
#define __IGNORE_migrate_pages
#define __IGNORE_move_pages
+/* Ignore system calls that are also reachable via sys_socket */
+#define __IGNORE_recvmmsg
+
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_ALARM
*/
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;
};
-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 = sys_mmap_pgoff(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 = sys_mmap_pgoff(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)
llgtr %r3,%r3 # compat_uptr_t *
llgtr %r4,%r4 # compat_uptr_t *
jg sys32_execve # branch to system call
-
- .globl compat_sys_recvmmsg_wrapper
-compat_sys_recvmmsg_wrapper:
- lgfr %r2,%r2 # int
- llgtr %r3,%r3 # struct compat_mmsghdr *
- llgfr %r4,%r4 # unsigned int
- llgfr %r5,%r5 # unsigned int
- llgtr %r6,%r6 # struct compat_timespec *
- jg compat_sys_recvmmsg
void flush_thread(void)
{
- clear_used_math();
- clear_tsk_thread_flag(current, TIF_USEDFPU);
}
void release_thread(struct task_struct *dead_task)
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;
{
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;
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)
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;
*/
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);
setup_lowcore();
cpu_init();
- __cpu_logical_map[0] = stap();
s390_init_cpu_topology();
/*
if (test_thread_flag(TIF_RESTORE_SIGMASK))
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;
}
#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;
{
}
+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.
SYSCALL(sys_pwritev,sys_pwritev,compat_sys_pwritev_wrapper)
SYSCALL(sys_rt_tgsigqueueinfo,sys_rt_tgsigqueueinfo,compat_sys_rt_tgsigqueueinfo_wrapper) /* 330 */
SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper)
-SYSCALL(sys_recvmmsg,sys_recvmmsg,compat_sys_recvmmsg_wrapper)
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;
}
{
if (MACHINE_HAS_DIAG9C)
asm volatile("diag %0,0,0x9c"
- : : "d" (__cpu_logical_map[cpu]));
+ : : "d" (cpu_logical_map(cpu)));
else
_raw_yield();
}
static inline unsigned long mmap_base(void)
{
- unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
+ unsigned long gap = rlimit(RLIMIT_STACK);
if (gap < MIN_GAP)
gap = MIN_GAP;
#endif
return sysctl_legacy_va_layout ||
(current->personality & ADDR_COMPAT_LAYOUT) ||
- current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY;
+ rlimit(RLIMIT_STACK) == RLIM_INFINITY;
}
#ifndef CONFIG_64BIT
#include <asm/debug.h>
#include <asm/idals.h>
#include <asm/ebcdic.h>
+#include <asm/compat.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/cio.h>
rc = -EFAULT;
if (copy_from_user(&usrparm, argp, sizeof(usrparm)))
goto out;
-#ifndef CONFIG_64BIT
- /* Make sure pointers are sane even on 31 bit. */
- if ((usrparm.psf_data >> 32) != 0 || (usrparm.rssd_result >> 32) != 0) {
+ if (is_compat_task() || sizeof(long) == 4) {
+ /* Make sure pointers are sane even on 31 bit. */
rc = -EINVAL;
- goto out;
+ if ((usrparm.psf_data >> 32) != 0)
+ goto out;
+ if ((usrparm.rssd_result >> 32) != 0)
+ goto out;
+ usrparm.psf_data &= 0x7fffffffULL;
+ usrparm.rssd_result &= 0x7fffffffULL;
}
-#endif
/* alloc I/O data area */
psf_data = kzalloc(usrparm.psf_data_len, GFP_KERNEL | GFP_DMA);
rssd_result = kzalloc(usrparm.rssd_result_len, GFP_KERNEL | GFP_DMA);
#include <linux/fs.h>
#include <linux/blkpg.h>
#include <linux/smp_lock.h>
-
+#include <asm/compat.h>
#include <asm/ccwdev.h>
#include <asm/cmb.h>
#include <asm/uaccess.h>
}
static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd,
- unsigned long arg)
+ struct cmbdata __user *argp)
{
- struct cmbdata __user *argp = (void __user *) arg;
size_t size = _IOC_SIZE(cmd);
struct cmbdata data;
int ret;
unsigned int cmd, unsigned long arg)
{
struct dasd_block *block = bdev->bd_disk->private_data;
- void __user *argp = (void __user *)arg;
+ void __user *argp;
+
+ if (is_compat_task())
+ argp = compat_ptr(arg);
+ else
+ argp = (void __user *)arg;
if (!block)
return -ENODEV;
case BIODASDCMFDISABLE:
return disable_cmf(block->base->cdev);
case BIODASDREADALLCMB:
- return dasd_ioctl_readall_cmb(block, cmd, arg);
+ return dasd_ioctl_readall_cmb(block, cmd, argp);
default:
/* if the discipline has an ioctl method try it. */
if (block->base->discipline->ioctl) {
tty_wakeup(tty);
}
-/*
- * Currently we don't have any io controls for 3215 ttys
- */
-static int tty3215_ioctl(struct tty_struct *tty, struct file * file,
- unsigned int cmd, unsigned long arg)
-{
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- switch (cmd) {
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
/*
* Disable reading from a 3215 tty
*/
.write_room = tty3215_write_room,
.chars_in_buffer = tty3215_chars_in_buffer,
.flush_buffer = tty3215_flush_buffer,
- .ioctl = tty3215_ioctl,
.throttle = tty3215_throttle,
.unthrottle = tty3215_unthrottle,
.stop = tty3215_stop,
#include <linux/types.h>
#include <linux/smp_lock.h>
+#include <asm/compat.h>
#include <asm/ccwdev.h>
#include <asm/cio.h>
#include <asm/ebcdic.h>
static long
fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
+ char __user *argp;
struct fs3270 *fp;
struct raw3270_iocb iocb;
int rc;
fp = filp->private_data;
if (!fp)
return -ENODEV;
+ if (is_compat_task())
+ argp = compat_ptr(arg);
+ else
+ argp = (char __user *)arg;
rc = 0;
mutex_lock(&fs3270_mutex);
switch (cmd) {
fp->write_command = arg;
break;
case TUBGETI:
- rc = put_user(fp->read_command, (char __user *) arg);
+ rc = put_user(fp->read_command, argp);
break;
case TUBGETO:
- rc = put_user(fp->write_command,(char __user *) arg);
+ rc = put_user(fp->write_command, argp);
break;
case TUBGETMOD:
iocb.model = fp->view.model;
iocb.pf_cnt = 24;
iocb.re_cnt = 20;
iocb.map = 0;
- if (copy_to_user((char __user *) arg, &iocb,
- sizeof(struct raw3270_iocb)))
+ if (copy_to_user(argp, &iocb, sizeof(struct raw3270_iocb)))
rc = -EFAULT;
break;
}
.write = fs3270_write, /* write */
.unlocked_ioctl = fs3270_ioctl, /* ioctl */
.compat_ioctl = fs3270_ioctl, /* ioctl */
- .open = fs3270_open, /* open */
- .release = fs3270_close, /* release */
+ .open = fs3270_open, /* open */
+ .release = fs3270_close, /* release */
};
/*
*/
static int tapeblock_open(struct block_device *, fmode_t);
static int tapeblock_release(struct gendisk *, fmode_t);
-static int tapeblock_ioctl(struct block_device *, fmode_t, unsigned int,
- unsigned long);
static int tapeblock_medium_changed(struct gendisk *);
static int tapeblock_revalidate_disk(struct gendisk *);
.owner = THIS_MODULE,
.open = tapeblock_open,
.release = tapeblock_release,
- .ioctl = tapeblock_ioctl,
.media_changed = tapeblock_medium_changed,
.revalidate_disk = tapeblock_revalidate_disk,
};
return 0;
}
-/*
- * Support of some generic block device IOCTLs.
- */
-static int
-tapeblock_ioctl(
- struct block_device * bdev,
- fmode_t mode,
- unsigned int command,
- unsigned long arg
-) {
- int rc;
- int minor;
- struct gendisk *disk = bdev->bd_disk;
- struct tape_device *device;
-
- rc = 0;
- BUG_ON(!disk);
- device = disk->private_data;
- BUG_ON(!device);
- minor = MINOR(bdev->bd_dev);
-
- DBF_LH(6, "tapeblock_ioctl(0x%0x)\n", command);
- DBF_LH(6, "device = %d:%d\n", tapeblock_major, minor);
-
- switch (command) {
- /* Refuse some IOCTL calls without complaining (mount). */
- case 0x5310: /* CDROMMULTISESSION */
- rc = -EINVAL;
- break;
- default:
- rc = -EINVAL;
- }
-
- return rc;
-}
-
/*
* Initialize block device frontend.
*/
#include <linux/proc_fs.h>
#include <linux/mtio.h>
#include <linux/smp_lock.h>
+#include <linux/compat.h>
#include <asm/uaccess.h>
static int tapechar_open(struct inode *,struct file *);
static int tapechar_release(struct inode *,struct file *);
static long tapechar_ioctl(struct file *, unsigned int, unsigned long);
-static long tapechar_compat_ioctl(struct file *, unsigned int,
- unsigned long);
+#ifdef CONFIG_COMPAT
+static long tapechar_compat_ioctl(struct file *, unsigned int, unsigned long);
+#endif
static const struct file_operations tape_fops =
{
.read = tapechar_read,
.write = tapechar_write,
.unlocked_ioctl = tapechar_ioctl,
+#ifdef CONFIG_COMPAT
.compat_ioctl = tapechar_compat_ioctl,
+#endif
.open = tapechar_open,
.release = tapechar_release,
};
return rc;
}
+#ifdef CONFIG_COMPAT
static long
tapechar_compat_ioctl(struct file *filp, unsigned int no, unsigned long data)
{
struct tape_device *device = filp->private_data;
int rval = -ENOIOCTLCMD;
+ unsigned long argp;
+ /* The 'arg' argument of any ioctl function may only be used for
+ * pointers because of the compat pointer conversion.
+ * Consider this when adding new ioctls.
+ */
+ argp = (unsigned long) compat_ptr(data);
if (device->discipline->ioctl_fn) {
mutex_lock(&device->mutex);
- rval = device->discipline->ioctl_fn(device, no, data);
+ rval = device->discipline->ioctl_fn(device, no, argp);
mutex_unlock(&device->mutex);
if (rval == -EINVAL)
rval = -ENOIOCTLCMD;
return rval;
}
+#endif /* CONFIG_COMPAT */
/*
* Initialize character device frontend.
#include <linux/kernel.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
+#include <asm/compat.h>
#include <asm/cpcmd.h>
#include <asm/debug.h>
#include <asm/uaccess.h>
static long vmcp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct vmcp_session *session;
+ int __user *argp;
int temp;
session = (struct vmcp_session *)file->private_data;
+ if (is_compat_task())
+ argp = compat_ptr(arg);
+ else
+ argp = (int __user *)arg;
if (mutex_lock_interruptible(&session->mutex))
return -ERESTARTSYS;
switch (cmd) {
case VMCP_GETCODE:
temp = session->resp_code;
mutex_unlock(&session->mutex);
- return put_user(temp, (int __user *)arg);
+ return put_user(temp, argp);
case VMCP_SETBUF:
free_pages((unsigned long)session->response,
get_order(session->bufsize));
session->response=NULL;
- temp = get_user(session->bufsize, (int __user *)arg);
+ temp = get_user(session->bufsize, argp);
if (get_order(session->bufsize) > 8) {
session->bufsize = PAGE_SIZE;
temp = -EINVAL;
case VMCP_GETSIZE:
temp = session->resp_size;
mutex_unlock(&session->mutex);
- return put_user(temp, (int __user *)arg);
+ return put_user(temp, argp);
default:
mutex_unlock(&session->mutex);
return -ENOIOCTLCMD;
#include <linux/uaccess.h>
#include <linux/miscdevice.h>
+#include <asm/compat.h>
#include <asm/cio.h>
#include <asm/chsc.h>
#include <asm/isc.h>
static long chsc_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
+ void __user *argp;
+
CHSC_MSG(2, "chsc_ioctl called, cmd=%x\n", cmd);
+ if (is_compat_task())
+ argp = compat_ptr(arg);
+ else
+ argp = (void __user *)arg;
switch (cmd) {
case CHSC_START:
- return chsc_ioctl_start((void __user *)arg);
+ return chsc_ioctl_start(argp);
case CHSC_INFO_CHANNEL_PATH:
- return chsc_ioctl_info_channel_path((void __user *)arg);
+ return chsc_ioctl_info_channel_path(argp);
case CHSC_INFO_CU:
- return chsc_ioctl_info_cu((void __user *)arg);
+ return chsc_ioctl_info_cu(argp);
case CHSC_INFO_SCH_CU:
- return chsc_ioctl_info_sch_cu((void __user *)arg);
+ return chsc_ioctl_info_sch_cu(argp);
case CHSC_INFO_CI:
- return chsc_ioctl_conf_info((void __user *)arg);
+ return chsc_ioctl_conf_info(argp);
case CHSC_INFO_CCL:
- return chsc_ioctl_conf_comp_list((void __user *)arg);
+ return chsc_ioctl_conf_comp_list(argp);
case CHSC_INFO_CPD:
- return chsc_ioctl_chpd((void __user *)arg);
+ return chsc_ioctl_chpd(argp);
case CHSC_INFO_DCAL:
- return chsc_ioctl_dcal((void __user *)arg);
+ return chsc_ioctl_dcal(argp);
default: /* unknown ioctl number */
return -ENOIOCTLCMD;
}
* u_mult_inv > 128 bytes.
*/
if (copied == 0) {
- int len;
+ unsigned int len;
spin_unlock_bh(&zcrypt_device_lock);
/* len is max 256 / 2 - 120 = 8 */
len = crt->inputdatalength / 2 - 120;
+ if (len > sizeof(z1))
+ return -EFAULT;
z1 = z2 = z3 = 0;
if (copy_from_user(&z1, crt->np_prime, len) ||
copy_from_user(&z2, crt->bp_key, len) ||
projects / linux-beck.git / commitdiff