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Commit fde36de3 authored by Jiri Pirko's avatar Jiri Pirko Committed by Greg Kroah-Hartman
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net: treat possible_net_t net pointer as an RCU one and add read_pnet_rcu()



[ Upstream commit 2034d90ae41ae93e30d492ebcf1f06f97a9cfba6 ]

Make the net pointer stored in possible_net_t structure annotated as
an RCU pointer. Change the access helpers to treat it as such.
Introduce read_pnet_rcu() helper to allow caller to dereference
the net pointer under RCU read lock.

Signed-off-by: default avatarJiri Pirko <jiri@nvidia.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Stable-dep-of: dd205fcc33d9 ("ipv4: use RCU protection in rt_is_expired()")
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent ef539316
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