#include <linux/namei.h>
#include <linux/uio.h>
#include <linux/vfs.h>
+#include <linux/rcupdate.h>
+#include <linux/vs_cvirt.h>
#include <asm/fpu.h>
#include <asm/io.h>
* braindamage (it can't really handle filesystems where the directory
* offset differences aren't the same as "d_reclen").
*/
-#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
-#define ROUND_UP(x) (((x)+3) & ~3)
+#define NAME_OFFSET offsetof (struct osf_dirent, d_name)
+#define ROUND_UP(x) (((x)+3) & ~3)
struct osf_dirent {
unsigned int d_ino;
{
struct osf_dirent __user *dirent;
struct osf_dirent_callback *buf = (struct osf_dirent_callback *) __buf;
- unsigned int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+ unsigned int reclen = ROUND_UP(NAME_OFFSET + namlen + 1);
buf->error = -EINVAL; /* only used if we fail */
if (reclen > buf->count)
osf_utsname(char __user *name)
{
int error;
+ struct new_utsname *ptr;
down_read(&uts_sem);
+ ptr = vx_new_utsname();
error = -EFAULT;
- if (copy_to_user(name + 0, system_utsname.sysname, 32))
+ if (copy_to_user(name + 0, ptr->sysname, 32))
goto out;
- if (copy_to_user(name + 32, system_utsname.nodename, 32))
+ if (copy_to_user(name + 32, ptr->nodename, 32))
goto out;
- if (copy_to_user(name + 64, system_utsname.release, 32))
+ if (copy_to_user(name + 64, ptr->release, 32))
goto out;
- if (copy_to_user(name + 96, system_utsname.version, 32))
+ if (copy_to_user(name + 96, ptr->version, 32))
goto out;
- if (copy_to_user(name + 128, system_utsname.machine, 32))
+ if (copy_to_user(name + 128, ptr->machine, 32))
goto out;
error = 0;
osf_getdomainname(char __user *name, int namelen)
{
unsigned len;
- int i, error;
+ int i;
+ char *domainname;
- error = verify_area(VERIFY_WRITE, name, namelen);
- if (error)
- goto out;
+ if (!access_ok(VERIFY_WRITE, name, namelen))
+ return -EFAULT;
len = namelen;
if (namelen > 32)
len = 32;
down_read(&uts_sem);
+ domainname = vx_new_uts(domainname);
for (i = 0; i < len; ++i) {
- __put_user(system_utsname.domainname[i], name + i);
- if (system_utsname.domainname[i] == '\0')
+ __put_user(domainname[i], name + i);
+ if (domainname[i] == '\0')
break;
}
up_read(&uts_sem);
- out:
- return error;
-}
-
-asmlinkage long
-osf_shmat(int shmid, void __user *shmaddr, int shmflg)
-{
- unsigned long raddr;
- long err;
-
- err = do_shmat(shmid, shmaddr, shmflg, &raddr);
- /*
- * This works because all user-level addresses are
- * non-negative longs!
- */
- return err ? err : (long)raddr;
+ return 0;
}
-
/*
* The following stuff should move into a header file should it ever
* be labeled "officially supported." Right now, there is just enough
asmlinkage long
osf_sysinfo(int command, char __user *buf, long count)
{
- static char * sysinfo_table[] = {
- system_utsname.sysname,
- system_utsname.nodename,
- system_utsname.release,
- system_utsname.version,
- system_utsname.machine,
- "alpha", /* instruction set architecture */
- "dummy", /* hardware serial number */
- "dummy", /* hardware manufacturer */
- "dummy", /* secure RPC domain */
- };
unsigned long offset;
char *res;
long len, err = -EINVAL;
offset = command-1;
- if (offset >= sizeof(sysinfo_table)/sizeof(char *)) {
+ if (offset >= 9) {
/* Digital UNIX has a few unpublished interfaces here */
printk("sysinfo(%d)", command);
goto out;
}
down_read(&uts_sem);
- res = sysinfo_table[offset];
+ switch (offset)
+ {
+ case 0: res = vx_new_uts(sysname); break;
+ case 1: res = vx_new_uts(nodename); break;
+ case 2: res = vx_new_uts(release); break;
+ case 3: res = vx_new_uts(version); break;
+ case 4: res = vx_new_uts(machine); break;
+ case 5: res = "alpha"; break;
+ default:
+ res = "dummy";
+ break;
+ }
len = strlen(res)+1;
if (len > count)
len = count;
{
switch (op) {
case SSI_IEEE_FP_CONTROL: {
- unsigned long swcr, fpcr, fex;
+ unsigned long swcr, fpcr;
+ unsigned int *state;
/*
* Alpha Architecture Handbook 4.7.7.3:
* set in the trap shadow of a software-complete insn.
*/
- /* Update softare trap enable bits. */
if (get_user(swcr, (unsigned long __user *)buffer))
return -EFAULT;
- current_thread_info()->ieee_state
- = ((current_thread_info()->ieee_state & ~IEEE_SW_MASK)
- | (swcr & IEEE_SW_MASK));
+ state = ¤t_thread_info()->ieee_state;
+
+ /* Update softare trap enable bits. */
+ *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK);
+
+ /* Update the real fpcr. */
+ fpcr = rdfpcr() & FPCR_DYN_MASK;
+ fpcr |= ieee_swcr_to_fpcr(swcr);
+ wrfpcr(fpcr);
+
+ return 0;
+ }
+
+ case SSI_IEEE_RAISE_EXCEPTION: {
+ unsigned long exc, swcr, fpcr, fex;
+ unsigned int *state;
+
+ if (get_user(exc, (unsigned long __user *)buffer))
+ return -EFAULT;
+ state = ¤t_thread_info()->ieee_state;
+ exc &= IEEE_STATUS_MASK;
+
+ /* Update softare trap enable bits. */
+ swcr = (*state & IEEE_SW_MASK) | exc;
+ *state |= exc;
/* Update the real fpcr. */
fpcr = rdfpcr();
- fpcr &= FPCR_DYN_MASK;
fpcr |= ieee_swcr_to_fpcr(swcr);
wrfpcr(fpcr);
- /* If any exceptions are now unmasked, send a signal. */
- fex = ((swcr & IEEE_STATUS_MASK)
- >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
+ /* If any exceptions set by this call, and are unmasked,
+ send a signal. Old exceptions are not signaled. */
+ fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
if (fex) {
siginfo_t info;
int si_code = 0;
info.si_addr = NULL; /* FIXME */
send_sig_info(SIGFPE, &info, current);
}
-
return 0;
}
affects all sorts of things, like timeval and itimerval. */
extern struct timezone sys_tz;
-extern int do_adjtimex(struct timex *);
struct timeval32
{
return -EFAULT;
}
- return do_utimes(filename, tvs ? ktvs : NULL);
+ return do_utimes(AT_FDCWD, filename, tvs ? ktvs : NULL);
}
#define MAX_SELECT_SECONDS \
fd_set_bits fds;
char *bits;
size_t size;
- unsigned long timeout;
- int ret;
+ long timeout;
+ int ret = -EINVAL;
+ struct fdtable *fdt;
+ int max_fdset;
timeout = MAX_SCHEDULE_TIMEOUT;
if (tvp) {
time_t sec, usec;
- if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
- || (ret = __get_user(sec, &tvp->tv_sec))
- || (ret = __get_user(usec, &tvp->tv_usec)))
+ if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp))
+ || __get_user(sec, &tvp->tv_sec)
+ || __get_user(usec, &tvp->tv_usec)) {
+ ret = -EFAULT;
goto out_nofds;
+ }
- ret = -EINVAL;
if (sec < 0 || usec < 0)
goto out_nofds;
}
}
- ret = -EINVAL;
- if (n < 0 || n > current->files->max_fdset)
+ rcu_read_lock();
+ fdt = files_fdtable(current->files);
+ max_fdset = fdt->max_fdset;
+ rcu_read_unlock();
+ if (n < 0 || n > max_fdset)
goto out_nofds;
/*
ret = 0;
}
- set_fd_set(n, inp->fds_bits, fds.res_in);
- set_fd_set(n, outp->fds_bits, fds.res_out);
- set_fd_set(n, exp->fds_bits, fds.res_ex);
+ if (set_fd_set(n, inp->fds_bits, fds.res_in) ||
+ set_fd_set(n, outp->fds_bits, fds.res_out) ||
+ set_fd_set(n, exp->fds_bits, fds.res_ex))
+ ret = -EFAULT;
out:
kfree(bits);
r.ru_majflt = current->maj_flt;
break;
case RUSAGE_CHILDREN:
- jiffies_to_timeval32(current->cutime, &r.ru_utime);
- jiffies_to_timeval32(current->cstime, &r.ru_stime);
- r.ru_minflt = current->cmin_flt;
- r.ru_majflt = current->cmaj_flt;
- break;
- default:
- jiffies_to_timeval32(current->utime + current->cutime,
- &r.ru_utime);
- jiffies_to_timeval32(current->stime + current->cstime,
- &r.ru_stime);
- r.ru_minflt = current->min_flt + current->cmin_flt;
- r.ru_majflt = current->maj_flt + current->cmaj_flt;
+ jiffies_to_timeval32(current->signal->cutime, &r.ru_utime);
+ jiffies_to_timeval32(current->signal->cstime, &r.ru_stime);
+ r.ru_minflt = current->signal->cmin_flt;
+ r.ru_majflt = current->signal->cmaj_flt;
break;
}
return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
}
-asmlinkage int
-osf_wait4(pid_t pid, int __user *ustatus, int options, struct rusage32 __user *ur)
+asmlinkage long
+osf_wait4(pid_t pid, int __user *ustatus, int options,
+ struct rusage32 __user *ur)
{
- if (!ur) {
+ struct rusage r;
+ long ret, err;
+ mm_segment_t old_fs;
+
+ if (!ur)
return sys_wait4(pid, ustatus, options, NULL);
- } else {
- struct rusage r;
- int ret, status;
- mm_segment_t old_fs = get_fs();
+
+ old_fs = get_fs();
- set_fs (KERNEL_DS);
- ret = sys_wait4(pid, &status, options, &r);
- set_fs (old_fs);
+ set_fs (KERNEL_DS);
+ ret = sys_wait4(pid, ustatus, options, (struct rusage __user *) &r);
+ set_fs (old_fs);
- if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
- return -EFAULT;
- __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
- __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
- __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
- __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec);
- __put_user(r.ru_maxrss, &ur->ru_maxrss);
- __put_user(r.ru_ixrss, &ur->ru_ixrss);
- __put_user(r.ru_idrss, &ur->ru_idrss);
- __put_user(r.ru_isrss, &ur->ru_isrss);
- __put_user(r.ru_minflt, &ur->ru_minflt);
- __put_user(r.ru_majflt, &ur->ru_majflt);
- __put_user(r.ru_nswap, &ur->ru_nswap);
- __put_user(r.ru_inblock, &ur->ru_inblock);
- __put_user(r.ru_oublock, &ur->ru_oublock);
- __put_user(r.ru_msgsnd, &ur->ru_msgsnd);
- __put_user(r.ru_msgrcv, &ur->ru_msgrcv);
- __put_user(r.ru_nsignals, &ur->ru_nsignals);
- __put_user(r.ru_nvcsw, &ur->ru_nvcsw);
- if (__put_user(r.ru_nivcsw, &ur->ru_nivcsw))
- return -EFAULT;
+ if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
+ return -EFAULT;
- if (ustatus && put_user(status, ustatus))
- return -EFAULT;
- return ret;
- }
+ err = 0;
+ err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
+ err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
+ err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
+ err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec);
+ err |= __put_user(r.ru_maxrss, &ur->ru_maxrss);
+ err |= __put_user(r.ru_ixrss, &ur->ru_ixrss);
+ err |= __put_user(r.ru_idrss, &ur->ru_idrss);
+ err |= __put_user(r.ru_isrss, &ur->ru_isrss);
+ err |= __put_user(r.ru_minflt, &ur->ru_minflt);
+ err |= __put_user(r.ru_majflt, &ur->ru_majflt);
+ err |= __put_user(r.ru_nswap, &ur->ru_nswap);
+ err |= __put_user(r.ru_inblock, &ur->ru_inblock);
+ err |= __put_user(r.ru_oublock, &ur->ru_oublock);
+ err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd);
+ err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv);
+ err |= __put_user(r.ru_nsignals, &ur->ru_nsignals);
+ err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw);
+ err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw);
+
+ return err ? err : ret;
}
/*
if (get_tv32(&tmp, sleep))
goto fault;
- ticks = tmp.tv_usec;
- ticks = (ticks + (1000000 / HZ) - 1) / (1000000 / HZ);
- ticks += tmp.tv_sec * HZ;
+ ticks = timeval_to_jiffies(&tmp);
- current->state = TASK_INTERRUPTIBLE;
- ticks = schedule_timeout(ticks);
+ ticks = schedule_timeout_interruptible(ticks);
if (remain) {
- tmp.tv_sec = ticks / HZ;
- tmp.tv_usec = ticks % HZ;
+ jiffies_to_timeval(ticks, &tmp);
if (put_tv32(remain, &tmp))
goto fault;
}
git://git.onelab.eu / linux-2.6.git / blobdiff