wait for outstanding shadow variables free requests in kpatch_exit #469
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Unload of kpatch module (and kpatch_shadow_hash table) before all shadow variables free requests are processed can lead to kernel crash. Add rcu_barrier() to kpatch_exit() to wait for all outstanding RCU callbacks to complete. Signed-off-by: Jan Stancek <jstancek@redhat.com>
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sjenning
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Nov 21, 2014
wait for outstanding shadow variables free requests in kpatch_exit
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Unload of kpatch module (and kpatch_shadow_hash table) before
all shadow variables free requests are processed can lead to
kernel crash.
Add rcu_barrier() to kpatch_exit() to wait for all outstanding
RCU callbacks to complete.
Resolves #468
Signed-off-by: Jan Stancek jstancek@redhat.com