diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-02-15 19:54:56 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-03-26 14:41:22 -0400 |
| commit | 119cd59fcfbe70fb3fcab4e64cd232bcc3807585 (patch) | |
| tree | 9b687382863d2425ba11121b14ed4e936079d4f7 /include/linux/signal.h | |
| parent | 57d563c8292569f2849569853e846bf740df5032 (diff) | |
x86: get rid of put_user_try in __setup_rt_frame() (both 32bit and 64bit)
Straightforward, except for save_altstack_ex() stuck in those.
Replace that thing with an analogue that would use unsafe_put_user()
instead of put_user_ex() (called compat_save_altstack()) and be done
with that.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/signal.h')
| -rw-r--r-- | include/linux/signal.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/signal.h b/include/linux/signal.h index 1a5f88316b08..05bacd2ab135 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -444,12 +444,12 @@ void signals_init(void); int restore_altstack(const stack_t __user *); int __save_altstack(stack_t __user *, unsigned long); -#define save_altstack_ex(uss, sp) do { \ +#define unsafe_save_altstack(uss, sp, label) do { \ stack_t __user *__uss = uss; \ struct task_struct *t = current; \ - put_user_ex((void __user *)t->sas_ss_sp, &__uss->ss_sp); \ - put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \ - put_user_ex(t->sas_ss_size, &__uss->ss_size); \ + unsafe_put_user((void __user *)t->sas_ss_sp, &__uss->ss_sp, label); \ + unsafe_put_user(t->sas_ss_flags, &__uss->ss_flags, label); \ + unsafe_put_user(t->sas_ss_size, &__uss->ss_size, label); \ if (t->sas_ss_flags & SS_AUTODISARM) \ sas_ss_reset(t); \ } while (0); |