diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2012-02-24 13:23:23 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-02-24 13:23:23 +0900 |
| commit | 35eb304b5cd7b49d581bda79218b8134f3b689ea (patch) | |
| tree | 3d75d9ada70814161d035b2f9166fee05d257dfb /kernel/kprobes.c | |
| parent | ca0cc30109241f280eb871794620d7cf198bb582 (diff) | |
| parent | bb4c7e9a9908548b458f34afb2fee74dc0d49f90 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into rmobile-fixes-for-linus
Diffstat (limited to 'kernel/kprobes.c')
| -rw-r--r-- | kernel/kprobes.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 95dd7212e61..9788c0ec6f4 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1077,6 +1077,7 @@ void __kprobes kprobe_flush_task(struct task_struct *tk) /* Early boot. kretprobe_table_locks not yet initialized. */ return; + INIT_HLIST_HEAD(&empty_rp); hash = hash_ptr(tk, KPROBE_HASH_BITS); head = &kretprobe_inst_table[hash]; kretprobe_table_lock(hash, &flags); @@ -1085,7 +1086,6 @@ void __kprobes kprobe_flush_task(struct task_struct *tk) recycle_rp_inst(ri, &empty_rp); } kretprobe_table_unlock(hash, &flags); - INIT_HLIST_HEAD(&empty_rp); hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) { hlist_del(&ri->hlist); kfree(ri); @@ -1673,8 +1673,12 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p, ri->rp = rp; ri->task = current; - if (rp->entry_handler && rp->entry_handler(ri, regs)) + if (rp->entry_handler && rp->entry_handler(ri, regs)) { + raw_spin_lock_irqsave(&rp->lock, flags); + hlist_add_head(&ri->hlist, &rp->free_instances); + raw_spin_unlock_irqrestore(&rp->lock, flags); return 0; + } arch_prepare_kretprobe(ri, regs); |