linux-kernel - [tip:perf/uprobes] x86: Move is_ia32_task to asm/thread

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Message-ID: <tip-ef334a20d84f52407a8a2afd02ddeaecbef0ad3d@git.kernel.org>
Date:	Tue, 13 Mar 2012 09:16:55 -0700
From:	tip-bot for Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	mingo@...hat.com, torvalds@...ux-foundation.org,
	peterz@...radead.org, rostedt@...dmis.org,
	jkenisto@...ux.vnet.ibm.com, tglx@...utronix.de, oleg@...hat.com,
	linux-mm@...ck.org, hpa@...or.com, linux-kernel@...r.kernel.org,
	andi@...stfloor.org, hch@...radead.org, ananth@...ibm.com,
	masami.hiramatsu.pt@...achi.com, acme@...radead.org,
	srikar@...ux.vnet.ibm.com, mingo@...e.hu
Subject: [tip:perf/uprobes] x86: Move is_ia32_task to asm/thread_info.
 h from asm/compat.h

Commit-ID:  ef334a20d84f52407a8a2afd02ddeaecbef0ad3d
Gitweb:     http://git.kernel.org/tip/ef334a20d84f52407a8a2afd02ddeaecbef0ad3d
Author:     Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
AuthorDate: Tue, 13 Mar 2012 19:33:03 +0530
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 13 Mar 2012 16:31:09 +0100

x86: Move is_ia32_task to asm/thread_info.h from asm/compat.h

is_ia32_task() is useful even in !CONFIG_COMPAT cases - utrace will
use it for example. Hence move it to a more generic file: asm/thread_info.h

Also now is_ia32_task() returns true if CONFIG_X86_32 is defined.

Signed-off-by: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Acked-by: H. Peter Anvin <hpa@...or.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Ananth N Mavinakayanahalli <ananth@...ibm.com>
Cc: Jim Keniston <jkenisto@...ux.vnet.ibm.com>
Cc: Linux-mm <linux-mm@...ck.org>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Andi Kleen <andi@...stfloor.org>
Cc: Christoph Hellwig <hch@...radead.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Arnaldo Carvalho de Melo <acme@...radead.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: http://lkml.kernel.org/r/20120313140303.17134.1401.sendpatchset@srdronam.in.ibm.com
[ Performed minor cleanup ]
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/include/asm/compat.h      |    9 ---------
 arch/x86/include/asm/thread_info.h |   12 ++++++++++++
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 355edc0..d680579 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -235,15 +235,6 @@ static inline void __user *arch_compat_alloc_user_space(long len)
 	return (void __user *)round_down(sp - len, 16);
 }
 
-static inline bool is_ia32_task(void)
-{
-#ifdef CONFIG_IA32_EMULATION
-	if (current_thread_info()->status & TS_COMPAT)
-		return true;
-#endif
-	return false;
-}
-
 static inline bool is_x32_task(void)
 {
 #ifdef CONFIG_X86_X32_ABI
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index af1db7e..ad6df8c 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -266,6 +266,18 @@ static inline void set_restore_sigmask(void)
 	ti->status |= TS_RESTORE_SIGMASK;
 	set_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags);
 }
+
+static inline bool is_ia32_task(void)
+{
+#ifdef CONFIG_X86_32
+	return true;
+#endif
+#ifdef CONFIG_IA32_EMULATION
+	if (current_thread_info()->status & TS_COMPAT)
+		return true;
+#endif
+	return false;
+}
 #endif	/* !__ASSEMBLY__ */
 
 #ifndef __ASSEMBLY__
--
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