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authorKuniyuki Iwashima <kuniyu@amazon.com>2025-04-17 17:03:54 -0700
committerPaolo Abeni <pabeni@redhat.com>2025-04-24 09:29:56 +0200
commitaccb46b56bc3bc99ee69ba18b06ca60266ad6fca (patch)
tree163de73903b949f64b26bc43506ae83869efc803 /tools/perf/scripts/python/export-to-postgresql.py
parentipv6: Protect fib6_link_table() with spinlock. (diff)
downloadwireguard-linux-accb46b56bc3bc99ee69ba18b06ca60266ad6fca.tar.xz
wireguard-linux-accb46b56bc3bc99ee69ba18b06ca60266ad6fca.zip
ipv6: Defer fib6_purge_rt() in fib6_add_rt2node() to fib6_add().
The next patch adds per-nexthop spinlock which protects nh->f6i_list. When rt->nh is not NULL, fib6_add_rt2node() will be called under the lock. fib6_add_rt2node() could call fib6_purge_rt() for another route, which could holds another nexthop lock. Then, deadlock could happen between two nexthops. Let's defer fib6_purge_rt() after fib6_add_rt2node(). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Link: https://patch.msgid.link/20250418000443.43734-14-kuniyu@amazon.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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