mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-20 10:44:23 +08:00
4eaca0a887
preempt_schedule_context() is a tracing safe preemption point but it's
only used when CONFIG_CONTEXT_TRACKING=y. Other configs have tracing
recursion issues since commit:
b30f0e3ffe ("sched/preempt: Optimize preemption operations on __schedule() callers")
introduced function based preemp_count_*() ops.
Lets make it available on all configs and give it a more appropriate
name for its new position.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1433432349-1021-3-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/* Exports for assembly files.
|
|
All C exports should go in the respective C files. */
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/smp.h>
|
|
|
|
#include <net/checksum.h>
|
|
|
|
#include <asm/processor.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/uaccess.h>
|
|
#include <asm/desc.h>
|
|
#include <asm/ftrace.h>
|
|
|
|
#ifdef CONFIG_FUNCTION_TRACER
|
|
/* mcount and __fentry__ are defined in assembly */
|
|
#ifdef CC_USING_FENTRY
|
|
EXPORT_SYMBOL(__fentry__);
|
|
#else
|
|
EXPORT_SYMBOL(mcount);
|
|
#endif
|
|
#endif
|
|
|
|
EXPORT_SYMBOL(__get_user_1);
|
|
EXPORT_SYMBOL(__get_user_2);
|
|
EXPORT_SYMBOL(__get_user_4);
|
|
EXPORT_SYMBOL(__get_user_8);
|
|
EXPORT_SYMBOL(__put_user_1);
|
|
EXPORT_SYMBOL(__put_user_2);
|
|
EXPORT_SYMBOL(__put_user_4);
|
|
EXPORT_SYMBOL(__put_user_8);
|
|
|
|
EXPORT_SYMBOL(copy_user_generic_string);
|
|
EXPORT_SYMBOL(copy_user_generic_unrolled);
|
|
EXPORT_SYMBOL(copy_user_enhanced_fast_string);
|
|
EXPORT_SYMBOL(__copy_user_nocache);
|
|
EXPORT_SYMBOL(_copy_from_user);
|
|
EXPORT_SYMBOL(_copy_to_user);
|
|
|
|
EXPORT_SYMBOL(copy_page);
|
|
EXPORT_SYMBOL(clear_page);
|
|
|
|
EXPORT_SYMBOL(csum_partial);
|
|
|
|
/*
|
|
* Export string functions. We normally rely on gcc builtin for most of these,
|
|
* but gcc sometimes decides not to inline them.
|
|
*/
|
|
#undef memcpy
|
|
#undef memset
|
|
#undef memmove
|
|
|
|
extern void *__memset(void *, int, __kernel_size_t);
|
|
extern void *__memcpy(void *, const void *, __kernel_size_t);
|
|
extern void *__memmove(void *, const void *, __kernel_size_t);
|
|
extern void *memset(void *, int, __kernel_size_t);
|
|
extern void *memcpy(void *, const void *, __kernel_size_t);
|
|
extern void *memmove(void *, const void *, __kernel_size_t);
|
|
|
|
EXPORT_SYMBOL(__memset);
|
|
EXPORT_SYMBOL(__memcpy);
|
|
EXPORT_SYMBOL(__memmove);
|
|
|
|
EXPORT_SYMBOL(memset);
|
|
EXPORT_SYMBOL(memcpy);
|
|
EXPORT_SYMBOL(memmove);
|
|
|
|
#ifndef CONFIG_DEBUG_VIRTUAL
|
|
EXPORT_SYMBOL(phys_base);
|
|
#endif
|
|
EXPORT_SYMBOL(empty_zero_page);
|
|
#ifndef CONFIG_PARAVIRT
|
|
EXPORT_SYMBOL(native_load_gs_index);
|
|
#endif
|
|
|
|
#ifdef CONFIG_PREEMPT
|
|
EXPORT_SYMBOL(___preempt_schedule);
|
|
EXPORT_SYMBOL(___preempt_schedule_notrace);
|
|
#endif
|