tree 9b0d00b300ad9178438b9c7feba95ed62f540c1a
parent 9be1e979f2e1e57a091a658fa88dac266f9fd6fe
author Tejun Heo <htejun@gmail.com> 1147694299 +0900
committer Tejun Heo <htejun@gmail.com> 1147694299 +0900

[PATCH] libata-eh: implement dev->ering

This patch implements ata_ering and uses it to define dev->ering.

ata_ering is a ring buffer which records libata errors - whether a
command was for normar IO request, err_mask and timestamp.  Errors are
recorded per-device in dev->ering.  This will be used by EH to
determine recovery actions.

Signed-off-by: Tejun Heo <htejun@gmail.com>