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xfs: configurable behavior on errors at unmount time

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XFS used to retry forever on non-critical errors, and unmount could
hang in such case. Commit e6b3bb78962e ("xfs: add "fail at unmount"
error handling configuration") introduced an error configuration
option in sysfs(fail_at_unmount) and made this behavior
configurable.

Now test this "fail_at_unmount" behavior to make sure XFS doesn't
retry forever on error at unmount time, if configured so. Also
introduced new helpers to require/set/get sysfs attributes.

Signed-off-by: Zorro Lang <zlang@redhat.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Zorro Lang
2016-07-05 17:30:24 +08:00
committed by Eryu Guan
parent 4cd659be9c
commit 2a7b77abcd
4 changed files with 191 additions and 0 deletions
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tests/xfs/006.out
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QA output created by 006
error/metadata/default/max_retries=-1
error/metadata/default/retry_timeout_seconds=0
error/metadata/EIO/max_retries=-1
error/metadata/EIO/retry_timeout_seconds=0
error/metadata/ENOSPC/max_retries=-1
error/metadata/ENOSPC/retry_timeout_seconds=0