commit bf2fcc6fdfe4f4e92bb74f062c0a1be189f3a561
author Andi Kleen <ak@suse.de> Wed Jan 11 22:44:06 2006 +0100
committer Linus Torvalds <torvalds@g5.osdl.org> Wed Jan 11 19:04:53 2006 -0800
tree 0bcc33f681c7e8ce6596c9323d4a1026ede84994
parent 2966387b481a11a90a7bed6600fc17b4253f6980

[PATCH] x86_64: Implement is_compat_task the right way

By setting a flag during a 32bit system call only

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-x86_64/compat.h

diff --git a/include/asm-x86_64/compat.h b/include/asm-x86_64/compat.h
index f0155c3..3863a7d 100644
--- a/include/asm-x86_64/compat.h
+++ b/include/asm-x86_64/compat.h
@@ -202,4 +202,9 @@
 	return (void __user *)regs->rsp - len; 
 }
 
+static inline int is_compat_task(void)
+{
+	return current_thread_info()->status & TS_COMPAT;
+}
+
 #endif /* _ASM_X86_64_COMPAT_H */