Commit f267fa9f authored by Ingo Molnar's avatar Ingo Molnar Committed by Linus Torvalds

[PATCH] s390: add ptr_to_compat()

Add ptr_to_compat() to s390 - needed by the new robust-futex code.
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>

untested. CHECKME: am i right about the 0x7fffffffUL masking?
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 66e863ac
...@@ -128,6 +128,11 @@ static inline void __user *compat_ptr(compat_uptr_t uptr) ...@@ -128,6 +128,11 @@ static inline void __user *compat_ptr(compat_uptr_t uptr)
return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
} }
static inline compat_uptr_t ptr_to_compat(void __user *uptr)
{
return (u32)(unsigned long)uptr;
}
static inline void __user *compat_alloc_user_space(long len) static inline void __user *compat_alloc_user_space(long len)
{ {
unsigned long stack; unsigned long stack;
......
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