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| author | Ingo Molnar <mingo@elte.hu> | 2006-03-27 01:16:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-27 08:44:48 -0800 |
| commit | f267fa9f5b377b5cecdb2baf332fec08bb71246d (patch) | |
| tree | 6e1d51ecaa4b7c990b835e382acce8409607dbbd /include/asm-s390/compat.h | |
| parent | 66e863acd7f2fb02fef709d5f0ab069445d4a58c (diff) | |
| download | linux-f267fa9f5b377b5cecdb2baf332fec08bb71246d.tar.bz2 | |
[PATCH] s390: add ptr_to_compat()
Add ptr_to_compat() to s390 - needed by the new robust-futex code.
Signed-off-by: Ingo 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: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-s390/compat.h')
| -rw-r--r-- | include/asm-s390/compat.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-s390/compat.h b/include/asm-s390/compat.h index a007715f4aea..356a0b183539 100644 --- a/include/asm-s390/compat.h +++ b/include/asm-s390/compat.h @@ -128,6 +128,11 @@ static inline void __user *compat_ptr(compat_uptr_t uptr) 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) { unsigned long stack; |