make SYSCALL_DEFINE<n>-generated wrappers do asmlinkage_protect
... and switch i386 to HAVE_SYSCALL_WRAPPERS, killing open-coded
uses of asmlinkage_protect() in a bunch of syscalls.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/open.c b/fs/open.c
index a539224..8c74100 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -197,10 +197,7 @@
SYSCALL_DEFINE2(ftruncate, unsigned int, fd, unsigned long, length)
{
- long ret = do_sys_ftruncate(fd, length, 1);
- /* avoid REGPARM breakage on x86: */
- asmlinkage_protect(2, ret, fd, length);
- return ret;
+ return do_sys_ftruncate(fd, length, 1);
}
#ifdef CONFIG_COMPAT
@@ -219,10 +216,7 @@
SYSCALL_DEFINE2(ftruncate64, unsigned int, fd, loff_t, length)
{
- long ret = do_sys_ftruncate(fd, length, 0);
- /* avoid REGPARM breakage on x86: */
- asmlinkage_protect(2, ret, fd, length);
- return ret;
+ return do_sys_ftruncate(fd, length, 0);
}
#endif /* BITS_PER_LONG == 32 */
@@ -961,29 +955,19 @@
SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, umode_t, mode)
{
- long ret;
-
if (force_o_largefile())
flags |= O_LARGEFILE;
- ret = do_sys_open(AT_FDCWD, filename, flags, mode);
- /* avoid REGPARM breakage on x86: */
- asmlinkage_protect(3, ret, filename, flags, mode);
- return ret;
+ return do_sys_open(AT_FDCWD, filename, flags, mode);
}
SYSCALL_DEFINE4(openat, int, dfd, const char __user *, filename, int, flags,
umode_t, mode)
{
- long ret;
-
if (force_o_largefile())
flags |= O_LARGEFILE;
- ret = do_sys_open(dfd, filename, flags, mode);
- /* avoid REGPARM breakage on x86: */
- asmlinkage_protect(4, ret, dfd, filename, flags, mode);
- return ret;
+ return do_sys_open(dfd, filename, flags, mode);
}
#ifndef __alpha__
