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Mike Snitzer authored
This reverts commit 9a0e609e. (Resolved a conflict during revert due to commit bfebd1cd that came after) This revert is motivated by a couple failure reports on request-based DM multipath testbeds: 1) Netapp reported that their multipath fault injection test under heavy IO load can stall longer than 300 seconds. 2) IBM reported elevated lock contention in their testbed (likely due to increased back pressure due to IO not being dispatched as quickly): https://www.redhat.com/archives/dm-devel/2015-July/msg00057.htmlSigned-off-by:
Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org # 4.1+
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