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authorIngo Molnar <mingo@elte.hu>2008-07-18 21:13:20 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-18 21:13:20 +0200
commitf6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c (patch)
treec5643fcdc884a8d0bfc3f1bc28039cab7394e5bc /include/asm-x86/current.h
parent323ec001c6bb98eeabb5abbdbb8c8055d9496554 (diff)
parent5b664cb235e97afbf34db9c4d77f08ebd725335e (diff)
downloadop-kernel-dev-f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c.zip
op-kernel-dev-f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c.tar.gz
Merge branch 'linus' into core/generic-dma-coherent
Conflicts: kernel/Makefile Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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