tree e782db1bcbec25283048d77871e0bed7ad04567c
parent d07eb9117050c9ed3f78296ebcc06128b52693be
author Stefan Behrens <sbehrens@giantdisaster.de> 1337954768 +0200
committer Josef Bacik <josef@redhat.com> 1338387819 -0400

Btrfs: add device counters for detected IO and checksum errors

The goal is to detect when drives start to get an increased error rate,
when drives should be replaced soon. Therefore statistic counters are
added that count IO errors (read, write and flush). Additionally, the
software detected errors like checksum errors and corrupted blocks are
counted.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>