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authorJens Axboe <axboe@fb.com>2016-11-28 09:40:34 -0700
committerJens Axboe <axboe@fb.com>2016-11-28 10:27:03 -0700
commitd62118b6dd99b8f64350206a6ea6996083b28c9a (patch)
tree18b3dfdeffa55da6509de99f565b789c29599b20 /drivers/staging
parentfa224eed2b5e0f2f9a57281e9dc733c843d590ad (diff)
blk-wbt: allow wbt to be enabled always through sysfs
Currently there's no way to enable wbt if it's not enabled in the kernel config by default for a device. Allow a write to the 'wbt_lat_usec' queue sysfs file to enable wbt. This is useful for both the kernel config case, but also if the device is CFQ managed and it was turned off by default. Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/staging')
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