On Sat, Apr 09, 2022 at 03:38:43PM +0800, Miaohe Lin wrote: > rcu_read_lock is required by grabbing the task refcount but it's not > needed for ptrace_may_access. So we could release the rcu lock after > task refcount is successfully grabbed to reduce the rcu holding time. > > Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> > Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> Looks good: Reviewed-by: Christoph Hellwig <hch@xxxxxx>
