Backport of disk-activity led trigger from linux mainline

edelweiss-tech / bt1-linux-3.19

linux 3.19 port for Baikal-T1 CPU

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Backport of disk-activity led trigger from linux mainline #8

Closed snegovick closed 6 years ago

snegovick commented 6 years ago

Some users were complaining about inconsistent HDD led behavior compared to common x86 (heartbeat was used). 3.19 only had legacy IDE trigger, which was not working with ATA disks. IDE trigger was removed because disk-activity trigger includes IDE trigger.