bonding: implement xdo_dev_state_free and call it after deletion

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[ Upstream commit ec13009472 ]

Add this implementation for bonding, so hardware resources can be
freed from the active slave after xfrm state is deleted. The netdev
used to invoke xdo_dev_state_free callback, is saved in the xfrm state
(xs->xso.real_dev), which is also the bond's active slave. To prevent
it from being freed, acquire netdev reference before leaving RCU
read-side critical section, and release it after callback is done.

And call it when deleting all SAs from old active real interface while
switching current active slave.

Fixes: 9a5605505d ("bonding: Add struct bond_ipesc to manage SA")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Link: https://patch.msgid.link/20240823031056.110999-2-jianbol@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jianbo Liu 2024-08-23 06:10:54 +03:00 • committed by Greg Kroah-Hartman

parent 3308410c4e

commit bfbf576f29

1 changed files with 36 additions and 0 deletions

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drivers/net/bonding/bond_main.c

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