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3fbb27b7f8
To return an endpoint to the userspace via Netlink, and to dump all of them, the endpoint list was iterated while holding the pernet->lock, but only to read the content of the list. In these cases, the spin locks can be replaced by RCU read ones, and use the _rcu variants to iterate over the entries list in a lockless way. Note that the __lookup_addr_by_id() helper has been modified to use the _rcu variants of list_for_each_entry(), but with an extra conditions, so it can be called either while the RCU read lock is held, or when the associated pernet->lock is held. Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20241115-net-next-mptcp-pm-lockless-dump-v1-1-f4a1bcb4ca2c@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| .. | ||
| bpf.c | ||
| crypto_test.c | ||
| crypto.c | ||
| ctrl.c | ||
| diag.c | ||
| fastopen.c | ||
| Kconfig | ||
| Makefile | ||
| mib.c | ||
| mib.h | ||
| mptcp_diag.c | ||
| mptcp_pm_gen.c | ||
| mptcp_pm_gen.h | ||
| options.c | ||
| pm_netlink.c | ||
| pm_userspace.c | ||
| pm.c | ||
| protocol.c | ||
| protocol.h | ||
| sched.c | ||
| sockopt.c | ||
| subflow.c | ||
| syncookies.c | ||
| token_test.c | ||
| token.c | ||