From: Jakub Kicinski Date: Thu, 8 Feb 2024 02:55:15 +0000 (-0800) Subject: Merge branch 'net-more-factorization-in-cleanup_net-paths' X-Git-Tag: block-6.9-20240315~27^2~317 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=b6b614558ed5b2ca50edacc0f2fbf5f52158c86c;p=linux-block.git Merge branch 'net-more-factorization-in-cleanup_net-paths' Eric Dumazet says: ==================== net: more factorization in cleanup_net() paths This series is inspired by recent syzbot reports hinting to RTNL and workqueue abuses. rtnl_lock() is unfair to (single threaded) cleanup_net(), because many threads can cause contention on it. This series adds a new (struct pernet_operations) method, so that cleanup_net() can hold RTNL longer once it finally acquires it. It also factorizes unregister_netdevice_many(), to further reduce stalls in cleanup_net(). Link: https://lore.kernel.org/netdev/CANn89iLJrrJs+6Vc==Un4rVKcpV0Eof4F_4w1_wQGxUCE2FWAg@mail.gmail.com/T/#u https://lore.kernel.org/netdev/170688415193.5216.10499830272732622816@kwain/ ==================== Link: https://lore.kernel.org/r/20240206144313.2050392-1-edumazet@google.com Signed-off-by: Jakub Kicinski --- b6b614558ed5b2ca50edacc0f2fbf5f52158c86c