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block: Catch duplicate IDs in bdrv_new()

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Since commit f298d071, block devices added with blockdev-add don't have
a QemuOpts around in dinfo->opts. Consequently, we can't rely any more
on QemuOpts catching duplicate IDs for block devices.

This patch adds a new check for duplicate IDs to bdrv_new(), and moves
the existing check that the ID isn't already taken for a node-name there
as well.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2014-04-17 13:27:05 +02:00
parent 9ffe333276
commit f2d953ec31
4 changed files with 57 additions and 6 deletions
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33
tests/qemu-iotests/087
View file

@ -72,6 +72,39 @@ run_qemu <<EOF
{ "execute": "quit" }
EOF
echo
echo === Duplicate ID ===
echo
run_qemu <<EOF
{ "execute": "qmp_capabilities" }
{ "execute": "blockdev-add",
"arguments": {
"options": {
"driver": "$IMGFMT",
"id": "disk",
"file": {
"driver": "file",
"filename": "$TEST_IMG"
}
}
}
}
{ "execute": "blockdev-add",
"arguments": {
"options": {
"driver": "$IMGFMT",
"id": "disk",
"file": {
"driver": "file",
"filename": "$TEST_IMG"
}
}
}
}
{ "execute": "quit" }
EOF
echo
echo === aio=native without O_DIRECT ===
echo