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authorBart Van Assche <bart.vanassche@sandisk.com>2017-04-07 11:16:54 -0700
committerJens Axboe <axboe@fb.com>2017-04-07 12:27:10 -0600
commit6077c2d706097c00d8f2fed57d3f3c45cd228ee8 (patch)
tree5acae1a06b2b108a20a84697422159321843c2ba /block
parent36e3cf273977da34a760d513e1bef8431a9abaa0 (diff)
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>
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