drbd: fix race between deconfiguring and reconfiguring network

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If a drbd_nl_net_conf hits the small window between the state change
to C_STANDALONE and the corresponding cleanup in after_state_ch,
that cleanup would throw away stuff we now need again,
and later trigger BUG_ON()s.

Fixed by properly serializing the new config request with
any pending cleanup.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

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Lars Ellenberg 2010-09-01 09:50:23 +02:00 • committed by Philipp Reisner

parent 0778286a13

commit c518d04fde

1 changed files with 4 additions and 2 deletions

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6

drivers/block/drbd/drbd_nl.c

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