I'm looking at proto_unregister() in linux-2.6.13:
Il calls kmem_cache_destroy() while holding proto_list_lock:
void proto_unregister(struct proto *prot)
{
write_lock(&proto_list_lock);
if (prot->slab != NULL) {
kmem_cache_destroy(prot->slab);
However, kmem_cache_destroy() may sleep:
int kmem_cache_destroy (kmem_cache_t * cachep)
{
int i;
if (!cachep || in_interrupt())
BUG();
/* Don't let CPUs to come and go */
lock_cpu_hotplug();
/* Find the cache in the chain of caches. */
down(&cache_chain_sem);
^^^^^^^^^^^^^^^^^^^^^^^
Am I seeing it right?
Bye,
--
Daniele Orlandi
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