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fork: Remove the weak insanity 

We error out when compiling with gcc4.1.[01] as it miscompiles
__weak. The workaround with magic defines is not longer
necessary. Make it __weak again.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20120505150141.306358267@linutronix.de
This commit is contained in:
Thomas Gleixner 2012-05-05 15:05:40 +00:00
parent 0a6ba092d1
commit 6c0a9fa62f
3 changed files with 1 additions and 9 deletions
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1
arch/sh/include/asm/thread_info.h
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@ -98,7 +98,6 @@ static inline struct thread_info *current_thread_info(void)
extern struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node);
extern void free_thread_info(struct thread_info *ti);
extern void arch_task_cache_init(void);
#define arch_task_cache_init arch_task_cache_init
extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
extern void init_thread_xstate(void);

1
arch/x86/include/asm/thread_info.h
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@ -284,6 +284,5 @@ static inline bool is_ia32_task(void)
extern void arch_task_cache_init(void);
extern void free_thread_info(struct thread_info *ti);
extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
#define arch_task_cache_init arch_task_cache_init
#endif
#endif /* _ASM_X86_THREAD_INFO_H */

8
kernel/fork.c
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@ -203,13 +203,7 @@ void __put_task_struct(struct task_struct *tsk)
}
EXPORT_SYMBOL_GPL(__put_task_struct);
/*
* macro override instead of weak attribute alias, to workaround
* gcc 4.1.0 and 4.1.1 bugs with weak attribute and empty functions.
*/
#ifndef arch_task_cache_init
#define arch_task_cache_init()
#endif
void __init __weak arch_task_cache_init(void) { }
void __init fork_init(unsigned long mempages)
{