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authorbibo mao <bibo_mao@linux.intel.com>2006-03-26 04:38:20 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-26 11:57:04 -0500
commitc6fd91f0bdcd294a0ae0ba2b2a7f7456ef4b7144 (patch)
tree1d095d1761a44118f101b2ce9697346ff168753a /arch/ia64/kernel/process.c
parentc9becf58d935265919bf1cb348b2c04492c8949d (diff)
[PATCH] kretprobe instance recycled by parent process
When kretprobe probes the schedule() function, if the probed process exits then schedule() will never return, so some kretprobe instances will never be recycled. In this patch the parent process will recycle retprobe instances of the probed function and there will be no memory leak of kretprobe instances. Signed-off-by: bibo mao <bibo.mao@intel.com> Cc: Masami Hiramatsu <hiramatu@sdl.hitachi.co.jp> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ia64/kernel/process.c')
-rw-r--r--arch/ia64/kernel/process.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 309d59658e5f..355d57970ba3 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -30,7 +30,6 @@
30#include <linux/efi.h> 30#include <linux/efi.h>
31#include <linux/interrupt.h> 31#include <linux/interrupt.h>
32#include <linux/delay.h> 32#include <linux/delay.h>
33#include <linux/kprobes.h>
34 33
35#include <asm/cpu.h> 34#include <asm/cpu.h>
36#include <asm/delay.h> 35#include <asm/delay.h>
@@ -738,13 +737,6 @@ void
738exit_thread (void) 737exit_thread (void)
739{ 738{
740 739
741 /*
742 * Remove function-return probe instances associated with this task
743 * and put them back on the free list. Do not insert an exit probe for
744 * this function, it will be disabled by kprobe_flush_task if you do.
745 */
746 kprobe_flush_task(current);
747
748 ia64_drop_fpu(current); 740 ia64_drop_fpu(current);
749#ifdef CONFIG_PERFMON 741#ifdef CONFIG_PERFMON
750 /* if needed, stop monitoring and flush state to perfmon context */ 742 /* if needed, stop monitoring and flush state to perfmon context */