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Milan Broz
80b16c192e
Flush workqueue before releasing bioset and mopools in dm-crypt. There can
be finished but not yet released request.
Call chain causing oops:
run workqueue
dec_pending
bio_endio(...);
<remove device request - remove mempool>
mempool_free(io, cc->io_pool);
This usually happens when cryptsetup create temporary
luks mapping in the beggining of crypt device activation.
When dm-core calls destructor crypt_dtr, no new request
are possible.
Signed-off-by: Milan Broz <[email protected]>
Cc: Chuck Ebbert <[email protected]>
Cc: Patrick McHardy <[email protected]>
Acked-by: Alasdair G Kergon <[email protected]>
Cc: Christophe Saout <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>