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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:40:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:40:19 +0000
commit9f0fc191371843c4fc000a226b0a26b6c059aacd (patch)
tree35f8be3ef04506ac891ad001e8c41e535ae8d01d /net/ipv4/tcp_metrics.c
parentReleasing progress-linux version 6.6.15-2~progress7.99u1. (diff)
downloadlinux-9f0fc191371843c4fc000a226b0a26b6c059aacd.tar.xz
linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.zip
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/ipv4/tcp_metrics.c')
-rw-r--r--net/ipv4/tcp_metrics.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 7aca12c59..c2a925538 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -898,11 +898,13 @@ static void tcp_metrics_flush_all(struct net *net)
unsigned int row;
for (row = 0; row < max_rows; row++, hb++) {
- struct tcp_metrics_block __rcu **pp;
+ struct tcp_metrics_block __rcu **pp = &hb->chain;
bool match;
+ if (!rcu_access_pointer(*pp))
+ continue;
+
spin_lock_bh(&tcp_metrics_lock);
- pp = &hb->chain;
for (tm = deref_locked(*pp); tm; tm = deref_locked(*pp)) {
match = net ? net_eq(tm_net(tm), net) :
!refcount_read(&tm_net(tm)->ns.count);
@@ -914,6 +916,7 @@ static void tcp_metrics_flush_all(struct net *net)
}
}
spin_unlock_bh(&tcp_metrics_lock);
+ cond_resched();
}
}