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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2010-12-03 12:54:34 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-12-06 19:59:32 +0300 |
| commit | f984ba4eb575e4a27ed28a76d4126d2aa9233c32 (patch) | |
| tree | 0df5f1510537edac10ae9cc1e5572d70dcf0a8c7 /include/linux/kprobes.h | |
| parent | cd7ebe2298ff1c3112232878678ce5fe6be8a15b (diff) | |
| download | linux-f984ba4eb575e4a27ed28a76d4126d2aa9233c32.tar.xz | |
kprobes: Use text_poke_smp_batch for unoptimizing
Use text_poke_smp_batch() on unoptimization path for reducing
the number of stop_machine() issues. If the number of
unoptimizing probes is more than MAX_OPTIMIZE_PROBES(=256),
kprobes unoptimizes first MAX_OPTIMIZE_PROBES probes and kicks
optimizer for remaining probes.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: 2nddept-manager@sdl.hitachi.co.jp
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20101203095434.2961.22657.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/kprobes.h')
| -rw-r--r-- | include/linux/kprobes.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index fe157ba6aa0e..b78edb58ee66 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -276,6 +276,8 @@ extern int arch_check_optimized_kprobe(struct optimized_kprobe *op); extern int arch_prepare_optimized_kprobe(struct optimized_kprobe *op); extern void arch_remove_optimized_kprobe(struct optimized_kprobe *op); extern void arch_optimize_kprobes(struct list_head *oplist); +extern void arch_unoptimize_kprobes(struct list_head *oplist, + struct list_head *done_list); extern void arch_unoptimize_kprobe(struct optimized_kprobe *op); extern kprobe_opcode_t *get_optinsn_slot(void); extern void free_optinsn_slot(kprobe_opcode_t *slot, int dirty); |