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由 Serge E. Hallyn 提交于
Change the credentials documentation to make it clear that the RCU read lock must be explicitly held when accessing credentials pointers in some other task than current. Holding a spinlock does not implicitly hold the RCU read lock. Signed-off-by: NSerge Hallyn <serue@us.ibm.com> Reviewed-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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