ip6mr: Convert ip6mr_rtm_dumproute() to RCU.

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ip6mr_rtm_dumproute() calls mr_table_dump() or mr_rtm_dumproute(),
and mr_rtm_dumproute() finally calls mr_table_dump().

mr_table_dump() calls the passed function, _ip6mr_fill_mroute().

_ip6mr_fill_mroute() is a wrapper for ip6mr_fill_mroute() to cast
struct mr_mfc * to struct mfc6_cache *.

ip6mr_fill_mroute() can already be called safely under RCU.

Let's convert ip6mr_rtm_dumproute() to RCU.

Now there is no user of the rtnl_held field in struct
fib_dump_filter, and the next patch will remove it.

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260604224712.3209821-7-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Kuniyuki Iwashima 2026-06-04 22:46:24 +00:00 • committed by Jakub Kicinski

parent 76ea2ba229

commit 3bcf206012

1 changed files with 20 additions and 9 deletions

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net/ipv6/ip6mr.c

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