diff options
| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2013-07-18 20:47:50 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-07-19 09:57:04 +0200 |
| commit | a7b0133ea94e4421a81702d5c0e6dcdbbbab8f6b (patch) | |
| tree | cdffdd36bd256d81c65a083d50a9a2e9be050a6f /arch/x86/kernel/kprobes/common.h | |
| parent | c7e85c42be68fca743df58a306edd29aa295e155 (diff) | |
kprobes/x86: Use text_poke_bp() instead of text_poke_smp*()
Use text_poke_bp() for optimizing kprobes instead of
text_poke_smp*(). Since the number of kprobes is usually not so
large (<100) and text_poke_bp() is much lighter than
text_poke_smp() [which uses stop_machine()], this just stops
using batch processing.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jason Baron <jbaron@akamai.com>
Cc: yrl.pp-manager.tt@hitachi.com
Cc: Borislav Petkov <bpetkov@suse.de>
Link: http://lkml.kernel.org/r/20130718114750.26675.9174.stgit@mhiramat-M0-7522
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/kprobes/common.h')
| -rw-r--r-- | arch/x86/kernel/kprobes/common.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/kernel/kprobes/common.h b/arch/x86/kernel/kprobes/common.h index 2e9d4b5af036..c6ee63f927ab 100644 --- a/arch/x86/kernel/kprobes/common.h +++ b/arch/x86/kernel/kprobes/common.h @@ -82,14 +82,9 @@ extern void synthesize_reljump(void *from, void *to); extern void synthesize_relcall(void *from, void *to); #ifdef CONFIG_OPTPROBES -extern int arch_init_optprobes(void); extern int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter); extern unsigned long __recover_optprobed_insn(kprobe_opcode_t *buf, unsigned long addr); #else /* !CONFIG_OPTPROBES */ -static inline int arch_init_optprobes(void) -{ - return 0; -} static inline int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter) { return 0; |