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[Qemu-block] [PULL 24/29] block: auto-generated node-names
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From: |
Kevin Wolf |
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Subject: |
[Qemu-block] [PULL 24/29] block: auto-generated node-names |
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Date: |
Fri, 16 Oct 2015 17:06:09 +0200 |
From: Jeff Cody <address@hidden>
If a node-name is not specified, automatically generate the node-name.
Generated node-names will use the "block" sub-system identifier.
Signed-off-by: Jeff Cody <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block.c | 19 ++++++++++++-------
tests/qemu-iotests/041 | 4 ++--
tests/qemu-iotests/051 | 3 ++-
tests/qemu-iotests/051.out | 2 +-
tests/qemu-iotests/067 | 3 ++-
tests/qemu-iotests/067.out | 5 +++++
tests/qemu-iotests/081 | 3 ++-
tests/qemu-iotests/081.out | 2 +-
tests/qemu-iotests/common.filter | 5 +++++
9 files changed, 32 insertions(+), 14 deletions(-)
diff --git a/block.c b/block.c
index 6490040..09f2a75 100644
--- a/block.c
+++ b/block.c
@@ -763,12 +763,15 @@ static void bdrv_assign_node_name(BlockDriverState *bs,
const char *node_name,
Error **errp)
{
- if (!node_name) {
- return;
- }
+ char *gen_node_name = NULL;
- /* Check for empty string or invalid characters */
- if (!id_wellformed(node_name)) {
+ if (!node_name) {
+ node_name = gen_node_name = id_generate(ID_BLOCK);
+ } else if (!id_wellformed(node_name)) {
+ /*
+ * Check for empty string or invalid characters, but not if it is
+ * generated (generated names use characters not available to the user)
+ */
error_setg(errp, "Invalid node name");
return;
}
@@ -777,18 +780,20 @@ static void bdrv_assign_node_name(BlockDriverState *bs,
if (blk_by_name(node_name)) {
error_setg(errp, "node-name=%s is conflicting with a device id",
node_name);
- return;
+ goto out;
}
/* takes care of avoiding duplicates node names */
if (bdrv_find_node(node_name)) {
error_setg(errp, "Duplicate node name");
- return;
+ goto out;
}
/* copy node name into the bs and insert it into the graph list */
pstrcpy(bs->node_name, sizeof(bs->node_name), node_name);
QTAILQ_INSERT_TAIL(&graph_bdrv_states, bs, node_list);
+out:
+ g_free(gen_node_name);
}
static QemuOptsList bdrv_runtime_opts = {
diff --git a/tests/qemu-iotests/041 b/tests/qemu-iotests/041
index 59c1a76..05b5962 100755
--- a/tests/qemu-iotests/041
+++ b/tests/qemu-iotests/041
@@ -780,7 +780,7 @@ class TestRepairQuorum(iotests.QMPTestCase):
# here we check that the last registered quorum file has not been
# swapped out and unref
result = self.vm.qmp('query-named-block-nodes')
- self.assert_qmp(result, 'return[0]/file', quorum_img3)
+ self.assert_qmp(result, 'return[1]/file', quorum_img3)
self.vm.shutdown()
def test_cancel_after_ready(self):
@@ -799,7 +799,7 @@ class TestRepairQuorum(iotests.QMPTestCase):
result = self.vm.qmp('query-named-block-nodes')
# here we check that the last registered quorum file has not been
# swapped out and unref
- self.assert_qmp(result, 'return[0]/file', quorum_img3)
+ self.assert_qmp(result, 'return[1]/file', quorum_img3)
self.vm.shutdown()
self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img),
'target image does not match source after mirroring')
diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index 4a8055b..17dbf04 100755
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -108,7 +108,8 @@ echo
echo === Overriding backing file ===
echo
-echo "info block" | run_qemu -drive
file="$TEST_IMG",driver=qcow2,backing.file.filename="$TEST_IMG.orig" -nodefaults
+echo "info block" | run_qemu -drive
file="$TEST_IMG",driver=qcow2,backing.file.filename="$TEST_IMG.orig"
-nodefaults\
+ | _filter_generated_node_ids
# Drivers that don't support backing files
run_qemu -drive
file="$TEST_IMG",driver=raw,backing.file.filename="$TEST_IMG.orig"
diff --git a/tests/qemu-iotests/051.out b/tests/qemu-iotests/051.out
index 0429be2..7765aa0 100644
--- a/tests/qemu-iotests/051.out
+++ b/tests/qemu-iotests/051.out
@@ -59,7 +59,7 @@ QEMU X.Y.Z monitor - type 'help' for more information
Testing: -drive
file=TEST_DIR/t.qcow2,driver=qcow2,backing.file.filename=TEST_DIR/t.qcow2.orig
-nodefaults
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) i[K[Din[K[D[Dinf[K[D[D[Dinfo[K[D[D[D[Dinfo
[K[D[D[D[D[Dinfo b[K[D[D[D[D[D[Dinfo
bl[K[D[D[D[D[D[D[Dinfo blo[K[D[D[D[D[D[D[D[Dinfo
bloc[K[D[D[D[D[D[D[D[D[Dinfo block[K
-ide0-hd0: TEST_DIR/t.qcow2 (qcow2)
+ide0-hd0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
Cache mode: writeback
Backing file: TEST_DIR/t.qcow2.orig (chain depth: 1)
(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K
diff --git a/tests/qemu-iotests/067 b/tests/qemu-iotests/067
index 3e9a053..3788534 100755
--- a/tests/qemu-iotests/067
+++ b/tests/qemu-iotests/067
@@ -48,7 +48,8 @@ function do_run_qemu()
function run_qemu()
{
do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp | _filter_qemu \
- | sed -e 's/\("actual-size":\s*\)[0-9]\+/\1SIZE/g'
+ | sed -e 's/\("actual-size":\s*\)[0-9]\+/\1SIZE/g' \
+ | _filter_generated_node_ids
}
size=128M
diff --git a/tests/qemu-iotests/067.out b/tests/qemu-iotests/067.out
index 5fbc881..27ad56f 100644
--- a/tests/qemu-iotests/067.out
+++ b/tests/qemu-iotests/067.out
@@ -40,6 +40,7 @@ Testing: -drive
file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk -device virti
},
"iops_wr": 0,
"ro": false,
+ "node-name": "NODE_NAME",
"backing_file_depth": 0,
"drv": "qcow2",
"iops": 0,
@@ -151,6 +152,7 @@ Testing: -drive
file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk
},
"iops_wr": 0,
"ro": false,
+ "node-name": "NODE_NAME",
"backing_file_depth": 0,
"drv": "qcow2",
"iops": 0,
@@ -270,6 +272,7 @@ Testing:
},
"iops_wr": 0,
"ro": false,
+ "node-name": "NODE_NAME",
"backing_file_depth": 0,
"drv": "qcow2",
"iops": 0,
@@ -390,6 +393,7 @@ Testing:
},
"iops_wr": 0,
"ro": false,
+ "node-name": "NODE_NAME",
"backing_file_depth": 0,
"drv": "qcow2",
"iops": 0,
@@ -480,6 +484,7 @@ Testing:
},
"iops_wr": 0,
"ro": false,
+ "node-name": "NODE_NAME",
"backing_file_depth": 0,
"drv": "qcow2",
"iops": 0,
diff --git a/tests/qemu-iotests/081 b/tests/qemu-iotests/081
index d9b042c..51873ff 100755
--- a/tests/qemu-iotests/081
+++ b/tests/qemu-iotests/081
@@ -53,7 +53,8 @@ function do_run_qemu()
function run_qemu()
{
- do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp |
_filter_qemu_io
+ do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp\
+ | _filter_qemu_io | _filter_generated_node_ids
}
test_quorum=$($QEMU_IMG --help|grep quorum)
diff --git a/tests/qemu-iotests/081.out b/tests/qemu-iotests/081.out
index 692c4a4..044793d 100644
--- a/tests/qemu-iotests/081.out
+++ b/tests/qemu-iotests/081.out
@@ -30,7 +30,7 @@ Testing: -drive
file=TEST_DIR/2.IMGFMT,format=IMGFMT,if=none,id=drive2
QMP_VERSION
{"return": {}}
{"return": {}}
-{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event":
"QUORUM_REPORT_BAD", "data": {"node-name": "", "sectors-count": 20480,
"sector-num": 0}}
+{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event":
"QUORUM_REPORT_BAD", "data": {"node-name": "NODE_NAME", "sectors-count": 20480,
"sector-num": 0}}
read 10485760/10485760 bytes at offset 0
10 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{"return": ""}
diff --git a/tests/qemu-iotests/common.filter b/tests/qemu-iotests/common.filter
index d6d05de..cfdb633 100644
--- a/tests/qemu-iotests/common.filter
+++ b/tests/qemu-iotests/common.filter
@@ -128,6 +128,11 @@ _filter_date()
-e 's/[A-Z][a-z][a-z] [A-z][a-z][a-z] *[0-9][0-9]*
[0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9][0-9][0-9][0-9]$/DATE/'
}
+_filter_generated_node_ids()
+{
+ sed -re 's/\#block[0-9]{3,}/NODE_NAME/'
+}
+
# replace occurrences of the actual TEST_DIR value with TEST_DIR
_filter_testdir()
{
--
1.8.3.1
- [Qemu-block] [PULL 16/29] block: Introduce parents list, (continued)
- [Qemu-block] [PULL 16/29] block: Introduce parents list, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 18/29] blockjob: Store device name at job creation, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 17/29] block: Implement bdrv_append() without bdrv_swap(), Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 21/29] block: Allow bdrv_unref_child(bs, NULL), Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 09/29] block: Convert bs->file to BdrvChild, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 20/29] block: Remove bdrv_swap(), Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 19/29] block: Add and use bdrv_replace_in_backing_chain(), Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 22/29] blkverify: Fix BDS leak in .bdrv_open error path, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 23/29] util - add automated ID generation utility, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 25/29] raw-posix: warn about BDRV_O_NATIVE_AIO if libaio is unavailable, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 24/29] block: auto-generated node-names,
Kevin Wolf <=
- [Qemu-block] [PULL 26/29] blockdev: always compile in -drive aio= parsing, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 27/29] qemu-nbd: always compile in --aio=MODE option, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 28/29] qcow2: Remove forward declaration of QCowAIOCB, Kevin Wolf, 2015/10/16
- [Qemu-block] [PULL 29/29] blkdebug: Don't confuse image as backing file, Kevin Wolf, 2015/10/16
- Re: [Qemu-block] [Qemu-devel] [PULL 00/29] Block layer patches, Peter Maydell, 2015/10/18