tree 28c88720535e3822419bec2db0ca32be053c3118
parent cb38fffbc968e797ae32039b1e2c47b940b30cb4
author Alberto Garcia <berto@igalia.com> 1446046383 +0200
committer Kevin Wolf <kwolf@redhat.com> 1447341765 +0100

block: Add statistics for failed and invalid I/O operations

This patch adds the block_acct_failed() and block_acct_invalid()
functions to allow keeping track of failed and invalid I/O operations.

The number of failed and invalid operations is exposed in
BlockDeviceStats.

We don't keep track of the time spent on invalid operations because
they are cancelled immediately when they are started.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: a7256ccb883a86356b1c6c46b5a29ed5448546a5.1446044837.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>