Gitweb: https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=9b41118b9c8fed755eaabb... Commit: 9b41118b9c8fed755eaabb1b0833f2518ddf1c36 Parent: 440ced192a5ae6d5fa7c191981abcdf59926e90b Author: Zdenek Kabelac zkabelac@redhat.com AuthorDate: Mon Jan 20 13:15:46 2020 +0100 Committer: Zdenek Kabelac zkabelac@redhat.com CommitterDate: Mon Jan 20 15:21:38 2020 +0100
tests: writeerror_dev
Intruduce aux function for easy simulation of disk areas, that are 'normally' readable, but will fail on write. --- test/lib/aux.sh | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/test/lib/aux.sh b/test/lib/aux.sh index ec0699f..b90063d 100644 --- a/test/lib/aux.sh +++ b/test/lib/aux.sh @@ -564,6 +564,8 @@ teardown() { echo -n "## teardown..." unset LVM_LOG_FILE_EPOCH
+ test ! -f ERR_DEV || should dmsetup remove $(cat ERR_DEV_NAME) + if test -f TESTNAME ; then
if test ! -f SKIP_THIS_TEST ; then @@ -985,6 +987,8 @@ common_dev_() { case "$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 $tgtype" ;; esac @@ -1125,6 +1129,24 @@ error_dev() { }
# +# Convert device to device with write errors but normal reads. +# For this 'delay' dev is used and reroutes 'reads' back to original device +# and for writes it will use extra new TEST-errordev (huge error target) +# i.e. writeerror_dev "$dev1" 8:32 +writeerror_dev() { + local name=${PREFIX}-errordev + + if test ! -e ERR_DEV; then + dmsetup create -u "TEST-$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
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