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author | Zdenek Kabelac <zkabelac@redhat.com> | 2020-01-20 13:15:46 +0100 |
---|---|---|
committer | Zdenek Kabelac <zkabelac@redhat.com> | 2020-01-23 10:32:15 +0100 |
commit | ecb77e9db31c88ed1a53e3194366e642f9b04e5a (patch) | |
tree | 97e0438d255668af9c2826b340d00cc9ae9ce0c2 | |
parent | cf844941d4f0939a78a9e0d0e0ef932172e55bfb (diff) | |
download | lvm2-ecb77e9db31c88ed1a53e3194366e642f9b04e5a.tar.gz |
tests: writeerror_dev
Intruduce aux function for easy simulation of disk areas,
that are 'normally' readable, but will fail on write.
-rw-r--r-- | test/lib/aux.sh | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/lib/aux.sh b/test/lib/aux.sh index ea126de8a..a9d1fe49d 100644 --- a/test/lib/aux.sh +++ b/test/lib/aux.sh @@ -516,6 +516,8 @@ teardown() { echo -n "## teardown..." unset LVM_LOG_FILE_EPOCH + test ! -f ERR_DEV || should dmsetup remove $(cat ERR_DEV_NAME) + if test -f TESTNAME ; then if test ! -f SKIP_THIS_TEST ; then @@ -954,6 +956,8 @@ common_dev_() { case "$tgtype" in delay) echo "$from $len delay $pvdev $(( pos + offset )) $read_ms $pvdev $(( pos + offset )) $write_ms" ;; + writeerror) + echo "$from $len delay $pvdev $(( pos + offset )) 0 $(cat ERR_DEV) 0 0" ;; error|zero) echo "$from $len $tgtype" ;; esac @@ -1082,6 +1086,29 @@ error_dev() { } # +# Convert device to device with write errors but normal reads. +# For this 'delay' dev is used and reroutes 'reads' back to original device +# and for writes it will use extra new TEST-errordev (huge error target) +# i.e. writeerror_dev "$dev1" 8:32 +writeerror_dev() { + local name=${PREFIX}-errordev + + if test ! -e ERR_DEV; then + # delay target is used for error mapping + if test ! -f HAVE_DM_DELAY ; then + target_at_least dm-delay 1 1 0 || return 0 + touch HAVE_DM_DELAY + fi + dmsetup create -u "TEST-$name" "$name" --table "0 4611686018427387904 error" + # Take major:minor of our error device + echo "$name" > ERR_DEV_NAME + dmsetup info -c --noheadings -o major,minor "$name" > ERR_DEV + fi + + common_dev_ writeerror "$@" +} + +# # Convert existing device to a device with zero segments # Takes the list of pairs of zero segment from:len # Combination with error or delay is unsupported |