diff options
| author | Eric Dumazet <edumazet@google.com> | 2024-02-22 10:50:15 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-02-26 11:46:12 +0000 |
| commit | 386520e0ecc01004d3a29c70c5a77d4bbf8a8420 (patch) | |
| tree | 8b38b88d2c08478267f7098e060cdbbdb474d0d1 /net/netlink/af_netlink.c | |
| parent | e39951d965bf58b5aba7f61dc1140dcb8271af22 (diff) | |
rtnetlink: add RTNL_FLAG_DUMP_UNLOCKED flag
Similarly to RTNL_FLAG_DOIT_UNLOCKED, this new flag
allows dump operations registered via rtnl_register()
or rtnl_register_module() to opt-out from RTNL protection.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlink/af_netlink.c')
| -rw-r--r-- | net/netlink/af_netlink.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 84cad7be6d43..be5792b638aa 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -2261,6 +2261,8 @@ static int netlink_dump(struct sock *sk, bool lock_taken) cb->extack = &extack; + if (cb->flags & RTNL_FLAG_DUMP_UNLOCKED) + extra_mutex = NULL; if (extra_mutex) mutex_lock(extra_mutex); nlk->dump_done_errno = cb->dump(skb, cb); @@ -2355,6 +2357,7 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb, cb->data = control->data; cb->module = control->module; cb->min_dump_alloc = control->min_dump_alloc; + cb->flags = control->flags; cb->skb = skb; cb->strict_check = nlk_test_bit(STRICT_CHK, NETLINK_CB(skb).sk); |