From 55ccf3fe3f9a3441731aa79cf42a628fc4ecace9 Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Wed, 16 May 2012 15:03:51 -0700 Subject: fork: move the real prepare_to_copy() users to arch_dup_task_struct() Historical prepare_to_copy() is mostly a no-op, duplicated for majority of the architectures and the rest following the x86 model of flushing the extended register state like fpu there. Remove it and use the arch_dup_task_struct() instead. Suggested-by: Oleg Nesterov Suggested-by: Linus Torvalds Signed-off-by: Suresh Siddha Link: http://lkml.kernel.org/r/1336692811-30576-1-git-send-email-suresh.b.siddha@intel.com Acked-by: Benjamin Herrenschmidt Cc: David Howells Cc: Koichi Yasutake Cc: Paul Mackerras Cc: Paul Mundt Cc: Chris Zankel Cc: Richard Henderson Cc: Russell King Cc: Haavard Skinnemoen Cc: Mike Frysinger Cc: Mark Salter Cc: Aurelien Jacquiot Cc: Mikael Starvik Cc: Yoshinori Sato Cc: Richard Kuo Cc: Tony Luck Cc: Michal Simek Cc: Ralf Baechle Cc: Jonas Bonn Cc: James E.J. Bottomley Cc: Helge Deller Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Chen Liqin Cc: Lennox Wu Cc: David S. Miller Cc: Chris Metcalf Cc: Jeff Dike Cc: Richard Weinberger Cc: Guan Xuetao Signed-off-by: H. Peter Anvin --- arch/um/include/asm/processor-generic.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/um') diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h index 98d01bc4fa92..63b716052d20 100644 --- a/arch/um/include/asm/processor-generic.h +++ b/arch/um/include/asm/processor-generic.h @@ -76,11 +76,6 @@ static inline void release_thread(struct task_struct *task) extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); -static inline void prepare_to_copy(struct task_struct *tsk) -{ -} - - extern unsigned long thread_saved_pc(struct task_struct *t); static inline void mm_copy_segments(struct mm_struct *from_mm, -- cgit v1.2.3