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author | Bart Van Assche <bart.vanassche@sandisk.com> | 2017-04-07 11:16:54 -0700 |
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committer | Jens Axboe <axboe@fb.com> | 2017-04-07 12:27:10 -0600 |
commit | 6077c2d706097c00d8f2fed57d3f3c45cd228ee8 (patch) | |
tree | 5acae1a06b2b108a20a84697422159321843c2ba /block/blk-mq-sched.c | |
parent | 36e3cf273977da34a760d513e1bef8431a9abaa0 (diff) | |
download | linux-6077c2d706097c00d8f2fed57d3f3c45cd228ee8.tar.bz2 |
dm rq: Avoid that request processing stalls sporadically
While running the srp-test software I noticed that request
processing stalls sporadically at the beginning of a test, namely
when mkfs is run against a dm-mpath device. Every time when that
happened the following command was sufficient to resume request
processing:
echo run >/sys/kernel/debug/block/dm-0/state
This patch avoids that such request processing stalls occur. The
test I ran is as follows:
while srp-test/run_tests -d -r 30 -t 02-mq; do :; done
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: dm-devel@redhat.com
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq-sched.c')
0 files changed, 0 insertions, 0 deletions