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authorEric Dumazet <edumazet@google.com>2024-01-22 11:26:02 +0000
committerPaolo Abeni <pabeni@redhat.com>2024-01-23 15:13:55 +0100
commitf44e64990beb41167bd7c313d90bcf7e290c3582 (patch)
treeb4f8adaee7005f5ede79476faf2e1f34cc6c7bc6 /net/core/sock_diag.c
parent86e8921df05c6e9423ab74ab8d41022775d8b83a (diff)
sock_diag: remove sock_diag_mutex
sock_diag_rcv() is still serializing its operations using a mutex, for no good reason. This came with commit 0a9c73014415 ("[INET_DIAG]: Fix oops in netlink_rcv_skb"), but the root cause has been fixed with commit cd40b7d3983c ("[NET]: make netlink user -> kernel interface synchronious") Remove this mutex to let multiple threads run concurrently. 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>
Diffstat (limited to 'net/core/sock_diag.c')
-rw-r--r--net/core/sock_diag.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index 5c3666431df4..654122838025 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -292,13 +292,9 @@ static int sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
}
}
-static DEFINE_MUTEX(sock_diag_mutex);
-
static void sock_diag_rcv(struct sk_buff *skb)
{
- mutex_lock(&sock_diag_mutex);
netlink_rcv_skb(skb, &sock_diag_rcv_msg);
- mutex_unlock(&sock_diag_mutex);
}
static int sock_diag_bind(struct net *net, int group)