tree 825b264f70bc5c5aaa2882e8dfba75e366238b1e
parent 8d7c6a96164651dbbab449ef0b5c20ae1f76a3a1
author Török Edwin <edwintorok@gmail.com> 1227436747 +0200
committer Ingo Molnar <mingo@elte.hu> 1227437629 +0100

tracing/stack-tracer: fix locking and refcounts

Impact: fix refcounting/object-access bug

Hold mmap_sem while looking up/accessing vma.
Hold the RCU lock while using the task we looked up.

Signed-off-by: Török Edwin <edwintorok@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>