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FIX instrumentation '__switch_to' error
author
Vyacheslav Cherkashin
<v.cherkashin@samsung.com>
Tue, 5 Feb 2013 15:03:07 +0000
(19:03 +0400)
committer
Vyacheslav Cherkashin
<v.cherkashin@samsung.com>
Tue, 5 Feb 2013 15:03:07 +0000
(19:03 +0400)
add processing critical sections
kprobe/dbi_kprobes.c
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diff --git
a/kprobe/dbi_kprobes.c
b/kprobe/dbi_kprobes.c
index
880a0c8
..
9d52be2
100644
(file)
--- a/
kprobe/dbi_kprobes.c
+++ b/
kprobe/dbi_kprobes.c
@@
-849,8
+849,12
@@
static void unpatch_suspended_task_ret_addr(struct task_struct *p, struct kretpr
{
ri = find_ri_pc_mod(p, rp);
if(ri) {
+ unsigned long flags;
rm_task_trampoline(p, ri);
+
+ spin_lock_irqsave(&kretprobe_lock, flags);
recycle_rp_inst(ri);
+ spin_unlock_irqrestore(&kretprobe_lock, flags);
}
}
}