mirror of
https://github.com/linux-apfs/apfstests.git
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Dave Chinner
98a3b42b42
These have been scripted conversions then cleaned up by hand as there was no consistency to the formatting of the license headers in the common/ directory. Author information was also removed (it's in the git history) and so now the header format is consistently: ##/bin/bash # SPDX-License-Identifier: GPL-2.0(+) # Copyright (c) <date> <owner>. All Rights Reserved. # # <file description> Signed-off-by: Dave Chinner <dchinner@redhat.com>
133 lines
3.0 KiB
Plaintext
133 lines
3.0 KiB
Plaintext
##/bin/bash
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# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2016 Oracle. All Rights Reserved.
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#
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# Routines for injecting errors into filesystems
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. ./common/log
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# Tests whether $FSTYP is one of the filesystems that supports error injection
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_require_error_injection()
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{
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case "$FSTYP" in
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"xfs")
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grep -q 'debug 1' /proc/fs/xfs/stat || \
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_notrun "XFS error injection requires CONFIG_XFS_DEBUG"
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;;
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*)
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_notrun "Error injection not supported on filesystem type: $FSTYP"
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esac
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}
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# Find the errortag injection knob in sysfs for a given xfs mount's
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# block device.
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_find_xfs_mountdev_errortag_knob()
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{
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dev="$1"
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knob="$2"
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shortdev="$(_short_dev "${dev}")"
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tagfile="/sys/fs/xfs/${shortdev}/errortag/${knob}"
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# Some of the new sysfs errortag knobs were previously available via
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# another sysfs path.
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case "${knob}" in
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"log_bad_crc")
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if [ ! -w "${tagfile}" ]; then
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tagfile="/sys/fs/xfs/${shortdev}/log/log_badcrc_factor"
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fi
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;;
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"drop_writes")
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if [ ! -w "${tagfile}" ]; then
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tagfile="/sys/fs/xfs/${shortdev}/drop_writes"
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fi
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if [ ! -w "${tagfile}" ]; then
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tagfile="/sys/fs/xfs/${shortdev}/fail_writes"
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fi
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;;
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*)
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;;
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esac
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echo "${tagfile}"
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}
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# Requires that xfs_io inject command knows about this error type
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_require_xfs_io_error_injection()
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{
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type="$1"
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_require_error_injection
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# Can we find the error injection knobs via the new errortag
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# configuration mechanism?
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knob="$(_find_xfs_mountdev_errortag_knob "${TEST_DEV}" "${type}")"
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test -w "${knob}" && return
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# NOTE: We can't actually test error injection here because xfs
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# hasn't always range checked the argument to xfs_errortag_add.
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# We also don't want to trip an error before we're ready to deal
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# with it.
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$XFS_IO_PROG -x -c 'inject' $TEST_DIR | grep -q "$type" || \
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_notrun "XFS error injection $type unknown."
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}
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# Inject an error into the test fs
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_test_inject_error()
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{
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type="$1"
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value="$2"
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knob="$(_find_xfs_mountdev_errortag_knob "${TEST_DEV}" "${type}")"
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if [ -w "${knob}" ]; then
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test -z "${value}" && value="default"
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echo -n "${value}" > "${knob}"
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elif [ -z "${value}" ] || [ "${value}" = "default" ]; then
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$XFS_IO_PROG -x -c "inject $type" $TEST_DIR
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else
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_fail "Cannot inject error ${type} value ${value}."
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fi
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}
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# Inject an error into the scratch fs
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_scratch_inject_error()
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{
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type="$1"
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value="$2"
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knob="$(_find_xfs_mountdev_errortag_knob "${SCRATCH_DEV}" "${type}")"
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if [ -w "${knob}" ]; then
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test -z "${value}" && value="default"
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echo -n "${value}" > "${knob}"
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elif [ -z "${value}" ] || [ "${value}" = "default" ]; then
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$XFS_IO_PROG -x -c "inject $type" $SCRATCH_MNT
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else
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_fail "Cannot inject error ${type} value ${value}."
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fi
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}
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# Unmount and remount the scratch device, dumping the log
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_scratch_inject_logprint()
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{
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local opts="$1"
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if test -n "$opts"; then
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opts="-o $opts"
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fi
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_scratch_unmount
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_scratch_dump_log
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_scratch_mount "$opts"
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}
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# Unmount and remount the test device, dumping the log
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_test_inject_logprint()
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{
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local opts="$1"
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if test -n "$opts"; then
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opts="-o $opts"
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fi
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_test_unmount
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_test_dump_log
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_test_mount "$opts"
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}
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