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| author |   Mike Snitzer <snitzer@redhat.com> | 2015-07-08 16:08:24 -0400 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-07-08 16:16:07 -0400 |
| commit | 621739b00e16ca2d80411dc9b111cb15b91f3ba9 (patch) | |
| tree | 76870c96eaa41113cb8f99669531c9f53dba12a5 /security | |
| parent | dm btree: silence lockdep lock inversion in dm_btree_del() (diff) | |
| download | linux-dev-621739b00e16ca2d80411dc9b111cb15b91f3ba9.tar.xz linux-dev-621739b00e16ca2d80411dc9b111cb15b91f3ba9.zip | |
Revert "dm: only run the queue on completion if congested or no requests pending"
This reverts commit 9a0e609e3fd8a95c96629b9fbde6b8c5b9a1456a.
(Resolved a conflict during revert due to commit bfebd1cdb4 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.html
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 4.1+
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions