ipv6: Remove FIB6_EXCEPTION_BUCKET_FLUSHED.

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The FIB6_EXCEPTION_BUCKET_FLUSHED logic has been dead since added.

Commit 0346ec2f08 ("ipv6: Prevent rt6_insert_exception() for
dying fib6_info.") restored the original race protection in
rt6_insert_exception() by reusing fib6_info.fib6_destroying.

The flag now prevents two races for per-cpu and exception routes.

Let's remove FIB6_EXCEPTION_BUCKET_FLUSHED and set fib6_destroying
in fib6_purge_rt().

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260926033355.3295550-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Kuniyuki Iwashima 2026-09-26 03:33:52 +00:00 • committed by Jakub Kicinski

parent 67da300938

commit c66d93e687

2 changed files with 7 additions and 52 deletions

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14

net/ipv6/ip6_fib.c

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45

net/ipv6/route.c

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