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Diffstat (limited to 'arch/alpha/kernel/osf_sys.c')
-rw-r--r--arch/alpha/kernel/osf_sys.c113
1 files changed, 77 insertions, 36 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 98a103621af..14db93e4c8a 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -145,27 +145,24 @@ SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd,
long __user *, basep)
{
int error;
- struct file *file;
+ struct fd arg = fdget(fd);
struct osf_dirent_callback buf;
- error = -EBADF;
- file = fget(fd);
- if (!file)
- goto out;
+ if (!arg.file)
+ return -EBADF;
buf.dirent = dirent;
buf.basep = basep;
buf.count = count;
buf.error = 0;
- error = vfs_readdir(file, osf_filldir, &buf);
+ error = vfs_readdir(arg.file, osf_filldir, &buf);
if (error >= 0)
error = buf.error;
if (count != buf.count)
error = count - buf.count;
- fput(file);
- out:
+ fdput(arg);
return error;
}
@@ -278,8 +275,8 @@ linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat)
tmp.st_dev = lstat->dev;
tmp.st_mode = lstat->mode;
tmp.st_nlink = lstat->nlink;
- tmp.st_uid = lstat->uid;
- tmp.st_gid = lstat->gid;
+ tmp.st_uid = from_kuid_munged(current_user_ns(), lstat->uid);
+ tmp.st_gid = from_kgid_munged(current_user_ns(), lstat->gid);
tmp.st_rdev = lstat->rdev;
tmp.st_ldev = lstat->rdev;
tmp.st_size = lstat->size;
@@ -448,11 +445,11 @@ struct procfs_args {
* unhappy with OSF UFS. [CHECKME]
*/
static int
-osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
+osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags)
{
int retval;
struct cdfs_args tmp;
- char *devname;
+ struct filename *devname;
retval = -EFAULT;
if (copy_from_user(&tmp, args, sizeof(tmp)))
@@ -461,18 +458,18 @@ osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
retval = PTR_ERR(devname);
if (IS_ERR(devname))
goto out;
- retval = do_mount(devname, dirname, "ext2", flags, NULL);
+ retval = do_mount(devname->name, dirname, "ext2", flags, NULL);
putname(devname);
out:
return retval;
}
static int
-osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
+osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags)
{
int retval;
struct cdfs_args tmp;
- char *devname;
+ struct filename *devname;
retval = -EFAULT;
if (copy_from_user(&tmp, args, sizeof(tmp)))
@@ -481,14 +478,14 @@ osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
retval = PTR_ERR(devname);
if (IS_ERR(devname))
goto out;
- retval = do_mount(devname, dirname, "iso9660", flags, NULL);
+ retval = do_mount(devname->name, dirname, "iso9660", flags, NULL);
putname(devname);
out:
return retval;
}
static int
-osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
+osf_procfs_mount(const char *dirname, struct procfs_args __user *args, int flags)
{
struct procfs_args tmp;
@@ -502,7 +499,7 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
int, flag, void __user *, data)
{
int retval;
- char *name;
+ struct filename *name;
name = getname(path);
retval = PTR_ERR(name);
@@ -510,13 +507,13 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
goto out;
switch (typenr) {
case 1:
- retval = osf_ufs_mount(name, data, flag);
+ retval = osf_ufs_mount(name->name, data, flag);
break;
case 6:
- retval = osf_cdfs_mount(name, data, flag);
+ retval = osf_cdfs_mount(name->name, data, flag);
break;
case 9:
- retval = osf_procfs_mount(name, data, flag);
+ retval = osf_procfs_mount(name->name, data, flag);
break;
default:
retval = -EINVAL;
@@ -796,8 +793,7 @@ SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
case GSI_UACPROC:
if (nbytes < sizeof(unsigned int))
return -EINVAL;
- w = (current_thread_info()->flags >> ALPHA_UAC_SHIFT) &
- UAC_BITMASK;
+ w = current_thread_info()->status & UAC_BITMASK;
if (put_user(w, (unsigned int __user *)buffer))
return -EFAULT;
return 1;
@@ -907,24 +903,20 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
break;
case SSI_NVPAIRS: {
- unsigned long v, w, i;
- unsigned int old, new;
+ unsigned __user *p = buffer;
+ unsigned i;
- for (i = 0; i < nbytes; ++i) {
+ for (i = 0, p = buffer; i < nbytes; ++i, p += 2) {
+ unsigned v, w, status;
- if (get_user(v, 2*i + (unsigned int __user *)buffer))
- return -EFAULT;
- if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer))
+ if (get_user(v, p) || get_user(w, p + 1))
return -EFAULT;
switch (v) {
case SSIN_UACPROC:
- again:
- old = current_thread_info()->flags;
- new = old & ~(UAC_BITMASK << ALPHA_UAC_SHIFT);
- new = new | (w & UAC_BITMASK) << ALPHA_UAC_SHIFT;
- if (cmpxchg(&current_thread_info()->flags,
- old, new) != old)
- goto again;
+ w &= UAC_BITMASK;
+ status = current_thread_info()->status;
+ status = (status & ~UAC_BITMASK) | w;
+ current_thread_info()->status = status;
break;
default:
@@ -1404,3 +1396,52 @@ SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
}
#endif
+
+SYSCALL_DEFINE2(osf_getpriority, int, which, int, who)
+{
+ int prio = sys_getpriority(which, who);
+ if (prio >= 0) {
+ /* Return value is the unbiased priority, i.e. 20 - prio.
+ This does result in negative return values, so signal
+ no error */
+ force_successful_syscall_return();
+ prio = 20 - prio;
+ }
+ return prio;
+}
+
+SYSCALL_DEFINE0(getxuid)
+{
+ current_pt_regs()->r20 = sys_geteuid();
+ return sys_getuid();
+}
+
+SYSCALL_DEFINE0(getxgid)
+{
+ current_pt_regs()->r20 = sys_getegid();
+ return sys_getgid();
+}
+
+SYSCALL_DEFINE0(getxpid)
+{
+ current_pt_regs()->r20 = sys_getppid();
+ return sys_getpid();
+}
+
+SYSCALL_DEFINE0(alpha_pipe)
+{
+ int fd[2];
+ int res = do_pipe_flags(fd, 0);
+ if (!res) {
+ /* The return values are in $0 and $20. */
+ current_pt_regs()->r20 = fd[1];
+ res = fd[0];
+ }
+ return res;
+}
+
+SYSCALL_DEFINE1(sethae, unsigned long, val)
+{
+ current_pt_regs()->hae = val;
+ return 0;
+}