tree eeca11526d28f47e7595c66079621e4bfb1e827c
parent 1fbdd2b3a3cf77f77b0cdf25dd969241ea2c0ce1
author Mike Christie <michaelc@cs.wisc.edu> 1338679785 +0100
committer Alasdair G Kergon <agk@redhat.com> 1338679785 +0100

dm mpath: delay retry of bypassed pg

If I/O needs retrying and only bypassed priority groups are available,
set the pg_init_delay_retry flag to wait before retrying.

If, for example, the reason for the bypass is that the controller is
getting reset or there is a firmware upgrade happening, retrying right
away would cause a flood of log messages and retries for what could be a
few seconds or even several minutes.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>