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authorBart Van Assche <bart.vanassche@sandisk.com>2015-05-18 13:24:38 +0200
committerDoug Ledford <dledford@redhat.com>2015-05-18 13:35:55 -0400
commite68ca75200fed4700471fb84ea0d09e25f269654 (patch)
tree9e3edf242fac69f72abe78a9228629bce7da1cc8 /tools/perf/scripts/python/call-graph-from-postgresql.py
parenta44074f14ba1ea0747ea737026eb929b81993dc3 (diff)
scsi_transport_srp: Reduce failover time
Unlike FC, there is no risk that SCSI devices will be offlined by the SCSI error handler if the SCSI error handler is started while a reconnect attempt is ongoing. Hence report timeout errors as soon as possible if a higher software layer (e.g. multipathd) needs to be informed about a timeout. It is assumed that if both fast_io_fail_tmo < 0 and rport->dev_loss_tmo < 0 that this means that there is no need to report timeouts quickly. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: James Bottomley <JBottomley@Odin.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Sebastian Parschauer <sebastian.riemer@profitbricks.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
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