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| author | Hien Nguyen <hien@us.ibm.com> | 2005-06-23 00:09:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 09:45:21 -0700 |
| commit | 0aa55e4d7db822059fe8132fe9f2b7773c48216c (patch) | |
| tree | 84075ac377f29f393aff802f00def309a98bcf40 | |
| parent | 7e1048b11c5afe79aac46a42e3ccec86b8365c6d (diff) | |
| download | blackbird-op-linux-0aa55e4d7db822059fe8132fe9f2b7773c48216c.tar.gz blackbird-op-linux-0aa55e4d7db822059fe8132fe9f2b7773c48216c.zip | |
[PATCH] kprobes: moves lock-unlock to non-arch kprobe_flush_task
This patch moves the lock/unlock of the arch specific kprobe_flush_task()
to the non-arch specific kprobe_flusk_task().
Signed-off-by: Hien Nguyen <hien@us.ibm.com>
Acked-by: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/i386/kernel/kprobes.c | 5 | ||||
| -rw-r--r-- | include/linux/kprobes.h | 3 | ||||
| -rw-r--r-- | kernel/kprobes.c | 5 |
3 files changed, 6 insertions, 7 deletions
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c index 2314d8d306fd..b8e2bae0ab4f 100644 --- a/arch/i386/kernel/kprobes.c +++ b/arch/i386/kernel/kprobes.c @@ -138,17 +138,14 @@ void arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs) } } -void arch_kprobe_flush_task(struct task_struct *tk, spinlock_t *kp_lock) +void arch_kprobe_flush_task(struct task_struct *tk) { - unsigned long flags = 0; struct kretprobe_instance *ri; - spin_lock_irqsave(kp_lock, flags); while ((ri = get_rp_inst_tsk(tk)) != NULL) { *((unsigned long *)(ri->stack_addr)) = (unsigned long) ri->ret_addr; recycle_rp_inst(ri); } - spin_unlock_irqrestore(kp_lock, flags); } /* diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 0f90466fb8b0..461391decc46 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -33,7 +33,6 @@ #include <linux/list.h> #include <linux/notifier.h> #include <linux/smp.h> -#include <linux/spinlock.h> #include <asm/kprobes.h> @@ -101,7 +100,7 @@ extern void trampoline_post_handler(struct kprobe *p, struct pt_regs *regs, unsigned long flags); extern struct task_struct *arch_get_kprobe_task(void *ptr); extern void arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs); -extern void arch_kprobe_flush_task(struct task_struct *tk, spinlock_t *kp_lock); +extern void arch_kprobe_flush_task(struct task_struct *tk); #else /* ARCH_SUPPORTS_KRETPROBES */ static inline void kretprobe_trampoline(void) { diff --git a/kernel/kprobes.c b/kernel/kprobes.c index e8e0ae8a6e14..dd42e717dd35 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -229,7 +229,10 @@ struct kretprobe_instance *get_rp_inst_tsk(struct task_struct *tk) */ void kprobe_flush_task(struct task_struct *tk) { - arch_kprobe_flush_task(tk, &kprobe_lock); + unsigned long flags = 0; + spin_lock_irqsave(&kprobe_lock, flags); + arch_kprobe_flush_task(tk); + spin_unlock_irqrestore(&kprobe_lock, flags); } /* |
