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Add TASKQ_NORECLAIM flag

Description

Add TASKQ_NORECLAIM flag

It has become necessary to be able to optionally disable
direct memory reclaim for certain taskqs. To support
this the TASKQ_NORECLAIM flags has been added which sets
the PF_MEMALLOC bit for all threads in the taskq.

Details

Provenance
Brian Behlendorf <behlendorf1@llnl.gov>Authored on May 6 2011, 10:21 PM
Parents
rGdde6b7b137f5: Prep spl-0.6.0-rc4 tag
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Reverted By
rGd47e664ad4b7: Revert "Add TASKQ_NORECLAIM flag"