af_unix: Replace garbage collection algorithm.

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commit 4090fa373f upstream.

If we find a dead SCC during iteration, we call unix_collect_skb()
to splice all skb in the SCC to the global sk_buff_head, hitlist.

After iterating all SCC, we unlock unix_gc_lock and purge the queue.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240325202425.60930-15-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Kuniyuki Iwashima 2025-05-21 16:27:20 +01:00 • committed by Greg Kroah-Hartman

parent 9734d332ef

commit 5dfd283f46

3 changed files with 64 additions and 274 deletions

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8

include/net/af_unix.h

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12

net/unix/af_unix.c

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318

net/unix/garbage.c

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