From fec8898d86ad0fb4d2161fc89885fa52da1e8b72 Mon Sep 17 00:00:00 2001
From: Anton Arapov <anton@redhat.com>
Date: Wed, 3 Apr 2013 18:00:36 +0200
Subject: [PATCH] uretprobes: Return probe exit, invoke handlers

Uretprobe handlers are invoked when the trampoline is hit, on completion
the trampoline is replaced with the saved return address and the uretprobe
instance deleted.

TODO: handle_trampoline() assumes that ->return_instances is always valid.
We should teach it to handle longjmp() which can invalidate the pending
return_instance's. This is nontrivial, we will try to do this in a separate
series.

Signed-off-by: Anton Arapov <anton@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
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