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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-15 15:44:51 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-15 15:44:51 +1000
commit43d2548bb2ef7e6d753f91468a746784041e522d (patch)
tree77d13fcd48fd998393abb825ec36e2b732684a73 /include/asm-x86/current.h
parent585583d95c5660973bc0cf64add517b040acd8a4 (diff)
parent85082fd7cbe3173198aac0eb5e85ab1edcc6352c (diff)
downloadop-kernel-dev-43d2548bb2ef7e6d753f91468a746784041e522d.zip
op-kernel-dev-43d2548bb2ef7e6d753f91468a746784041e522d.tar.gz
Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of: arch/powerpc/Kconfig
Diffstat (limited to 'include/asm-x86/current.h')
-rw-r--r--include/asm-x86/current.h42
1 files changed, 38 insertions, 4 deletions
diff --git a/include/asm-x86/current.h b/include/asm-x86/current.h
index d2526d3..7515c19 100644
--- a/include/asm-x86/current.h
+++ b/include/asm-x86/current.h
@@ -1,5 +1,39 @@
+#ifndef _X86_CURRENT_H
+#define _X86_CURRENT_H
+
#ifdef CONFIG_X86_32
-# include "current_32.h"
-#else
-# include "current_64.h"
-#endif
+#include <linux/compiler.h>
+#include <asm/percpu.h>
+
+struct task_struct;
+
+DECLARE_PER_CPU(struct task_struct *, current_task);
+static __always_inline struct task_struct *get_current(void)
+{
+ return x86_read_percpu(current_task);
+}
+
+#else /* X86_32 */
+
+#ifndef __ASSEMBLY__
+#include <asm/pda.h>
+
+struct task_struct;
+
+static __always_inline struct task_struct *get_current(void)
+{
+ return read_pda(pcurrent);
+}
+
+#else /* __ASSEMBLY__ */
+
+#include <asm/asm-offsets.h>
+#define GET_CURRENT(reg) movq %gs:(pda_pcurrent),reg
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* X86_32 */
+
+#define current get_current()
+
+#endif /* X86_CURRENT_H */
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