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author | Jens Axboe <axboe@kernel.dk> | 2018-01-10 19:06:23 +0300 |
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committer | Jens Axboe <axboe@kernel.dk> | 2018-01-10 19:06:23 +0300 |
commit | 93b570464cce0079c15832cbb8ea17debd541585 (patch) | |
tree | d839ccb483b9697dcd12c4e89ae3f67f1d7351ad /block/partitions/msdos.c | |
parent | 8993d445df388e3541f48920a2353cfc904b220a (diff) | |
download | linux-93b570464cce0079c15832cbb8ea17debd541585.tar.xz |
null_blk: add option for managing IO timeouts
Use the fault injection framework to provide a way for null_blk
to configure timeouts. This only works for queue_mode 1 and 2,
since the bio mode doesn't have code for tracking timeouts.
Let's say you want to have a 10% chance of timing out every
100,000 requests, and for 5 total timeouts, you could do:
modprobe null_blk timeout="100000,10,0,5"
This is useful for adding blktests to test that IO timeouts
are handled appropriately.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/partitions/msdos.c')
0 files changed, 0 insertions, 0 deletions