__put_user(ts->tv_nsec, &cts->tv_nsec)) ? -EFAULT : 0;
}
-static long compat_nanosleep_restart(struct restart_block *restart)
-{
- unsigned long expire = restart->arg0, now = jiffies;
- struct compat_timespec __user *rmtp;
-
- /* Did it expire while we handled signals? */
- if (!time_after(expire, now))
- return 0;
-
- expire = schedule_timeout_interruptible(expire - now);
- if (expire == 0)
- return 0;
-
- rmtp = (struct compat_timespec __user *)restart->arg1;
- if (rmtp) {
- struct compat_timespec ct;
- struct timespec t;
-
- jiffies_to_timespec(expire, &t);
- ct.tv_sec = t.tv_sec;
- ct.tv_nsec = t.tv_nsec;
- if (copy_to_user(rmtp, &ct, sizeof(ct)))
- return -EFAULT;
- }
- /* The 'restart' block is already filled in */
- return -ERESTART_RESTARTBLOCK;
-}
-
asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
- struct compat_timespec __user *rmtp)
+ struct compat_timespec __user *rmtp)
{
- struct timespec t;
- struct restart_block *restart;
- unsigned long expire;
+ struct timespec tu, rmt;
+ long ret;
- if (get_compat_timespec(&t, rqtp))
+ if (get_compat_timespec(&tu, rqtp))
return -EFAULT;
- if ((t.tv_nsec >= 1000000000L) || (t.tv_nsec < 0) || (t.tv_sec < 0))
+ if (!timespec_valid(&tu))
return -EINVAL;
- expire = timespec_to_jiffies(&t) + (t.tv_sec || t.tv_nsec);
- expire = schedule_timeout_interruptible(expire);
- if (expire == 0)
- return 0;
+ ret = hrtimer_nanosleep(&tu, rmtp ? &rmt : NULL, HRTIMER_MODE_REL,
+ CLOCK_MONOTONIC);
- if (rmtp) {
- jiffies_to_timespec(expire, &t);
- if (put_compat_timespec(&t, rmtp))
+ if (ret && rmtp) {
+ if (put_compat_timespec(&rmt, rmtp))
return -EFAULT;
}
- restart = ¤t_thread_info()->restart_block;
- restart->fn = compat_nanosleep_restart;
- restart->arg0 = jiffies + expire;
- restart->arg1 = (unsigned long) rmtp;
- return -ERESTART_RESTARTBLOCK;
+
+ return ret;
}
static inline long get_compat_itimerval(struct itimerval *o,
return min_length;
}
-static int get_compat_itimerspec(struct itimerspec *dst,
- struct compat_itimerspec __user *src)
+int get_compat_itimerspec(struct itimerspec *dst,
+ const struct compat_itimerspec __user *src)
{
if (get_compat_timespec(&dst->it_interval, &src->it_interval) ||
get_compat_timespec(&dst->it_value, &src->it_value))
return 0;
}
-static int put_compat_itimerspec(struct compat_itimerspec __user *dst,
- struct itimerspec *src)
+int put_compat_itimerspec(struct compat_itimerspec __user *dst,
+ const struct itimerspec *src)
{
if (put_compat_timespec(&src->it_interval, &dst->it_interval) ||
put_compat_timespec(&src->it_value, &dst->it_value))
}
return sys_move_pages(pid, nr_pages, pages, nodes, status, flags);
}
+
+asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
+ compat_ulong_t maxnode,
+ const compat_ulong_t __user *old_nodes,
+ const compat_ulong_t __user *new_nodes)
+{
+ unsigned long __user *old = NULL;
+ unsigned long __user *new = NULL;
+ nodemask_t tmp_mask;
+ unsigned long nr_bits;
+ unsigned long size;
+
+ nr_bits = min_t(unsigned long, maxnode - 1, MAX_NUMNODES);
+ size = ALIGN(nr_bits, BITS_PER_LONG) / 8;
+ if (old_nodes) {
+ if (compat_get_bitmap(nodes_addr(tmp_mask), old_nodes, nr_bits))
+ return -EFAULT;
+ old = compat_alloc_user_space(new_nodes ? size * 2 : size);
+ if (new_nodes)
+ new = old + size / sizeof(unsigned long);
+ if (copy_to_user(old, nodes_addr(tmp_mask), size))
+ return -EFAULT;
+ }
+ if (new_nodes) {
+ if (compat_get_bitmap(nodes_addr(tmp_mask), new_nodes, nr_bits))
+ return -EFAULT;
+ if (new == NULL)
+ new = compat_alloc_user_space(size);
+ if (copy_to_user(new, nodes_addr(tmp_mask), size))
+ return -EFAULT;
+ }
+ return sys_migrate_pages(pid, nr_bits + 1, old, new);
+}
#endif
+
+struct compat_sysinfo {
+ s32 uptime;
+ u32 loads[3];
+ u32 totalram;
+ u32 freeram;
+ u32 sharedram;
+ u32 bufferram;
+ u32 totalswap;
+ u32 freeswap;
+ u16 procs;
+ u16 pad;
+ u32 totalhigh;
+ u32 freehigh;
+ u32 mem_unit;
+ char _f[20-2*sizeof(u32)-sizeof(int)];
+};
+
+asmlinkage long
+compat_sys_sysinfo(struct compat_sysinfo __user *info)
+{
+ struct sysinfo s;
+
+ do_sysinfo(&s);
+
+ /* Check to see if any memory value is too large for 32-bit and scale
+ * down if needed
+ */
+ if ((s.totalram >> 32) || (s.totalswap >> 32)) {
+ int bitcount = 0;
+
+ while (s.mem_unit < PAGE_SIZE) {
+ s.mem_unit <<= 1;
+ bitcount++;
+ }
+
+ s.totalram >>= bitcount;
+ s.freeram >>= bitcount;
+ s.sharedram >>= bitcount;
+ s.bufferram >>= bitcount;
+ s.totalswap >>= bitcount;
+ s.freeswap >>= bitcount;
+ s.totalhigh >>= bitcount;
+ s.freehigh >>= bitcount;
+ }
+
+ if (!access_ok(VERIFY_WRITE, info, sizeof(struct compat_sysinfo)) ||
+ __put_user (s.uptime, &info->uptime) ||
+ __put_user (s.loads[0], &info->loads[0]) ||
+ __put_user (s.loads[1], &info->loads[1]) ||
+ __put_user (s.loads[2], &info->loads[2]) ||
+ __put_user (s.totalram, &info->totalram) ||
+ __put_user (s.freeram, &info->freeram) ||
+ __put_user (s.sharedram, &info->sharedram) ||
+ __put_user (s.bufferram, &info->bufferram) ||
+ __put_user (s.totalswap, &info->totalswap) ||
+ __put_user (s.freeswap, &info->freeswap) ||
+ __put_user (s.procs, &info->procs) ||
+ __put_user (s.totalhigh, &info->totalhigh) ||
+ __put_user (s.freehigh, &info->freehigh) ||
+ __put_user (s.mem_unit, &info->mem_unit))
+ return -EFAULT;
+
+ return 0;
+}
+
projects / linux-2.6-omap-h63xx.git / blobdiff