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linux-stable-mirror/include/linux
Eric DumazetandGreg Kroah-Hartman bba7266d9d sock_diag: allow concurrent operation in sock_diag_rcv_msg()
[ Upstream commit 86e8921df0 ]

TCPDIAG_GETSOCK and DCCPDIAG_GETSOCK diag are serialized
on sock_diag_table_mutex.

This is to make sure inet_diag module is not unloaded
while diag was ongoing.

It is time to get rid of this mutex and use RCU protection,
allowing full parallelism.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Stable-dep-of: eb02688c5c ("ipv6: release nexthop on device removal")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-09 10:32:10 +01:00
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