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inject: skip tests when knob dir exists but knob doesn't

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If the XFS error injection knob directory exists but the knob itself
doesn't, then we know that this kernel doesn't support the knob and
can skip the test.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Darrick J. Wong
2019-02-11 18:17:48 -08:00
committed by Eryu Guan
parent e6897e32b8
commit f98cc2256b
1 changed files with 7 additions and 0 deletions
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common/inject
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@@ -62,6 +62,13 @@ _require_xfs_io_error_injection()
knob="$(_find_xfs_mountdev_errortag_knob "${TEST_DEV}" "${type}")"
test -w "${knob}" && return
# If the directory containing the sysfs error injection knob exists
# but the knob itself isn't usable, this kernel doesn't know about
# the knob. Skip the test.
if [ -d "$(dirname "${knob}")" ]; then
_notrun "XFS error injection $type unknown on this kernel."
fi
# NOTE: We can't actually test error injection here because xfs
# hasn't always range checked the argument to xfs_errortag_add.
# We also don't want to trip an error before we're ready to deal