Files
mirror_zfs/include/sys
Rob Norris 4653e2f7d3 dmu_tx: break tx assign/wait when pool suspends
This adjusts dmu_tx_assign/dmu_tx_wait to be interruptable if the pool
suspends while they're waiting, rather than just on the initial check
before falling back into a wait.

Since that's not always wanted, add a DMU_TX_SUSPEND flag to ignore
suspend entirely, effectively returning to the previous behaviour.

With that, it shouldn't be possible for anything with a standard
dmu_tx_assign/wait/abort loop to block under failmode=continue.

Also should be a bit tighter than the old behaviour, where a
VERIFY0(dmu_tx_assign(DMU_TX_WAIT)) could technically fail if the pool
is already suspended and failmode=continue.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #17355
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