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block: introduce BlockDriver.bdrv_needs_filename to enable some drivers.

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Some drivers will have driver specifics options but no filename.
This new bool allow the block layer to treat them correctly.

The .bdrv_needs_filename is set in drivers not having .bdrv_parse_filename and
not having .bdrv_open.

The first exception to this rule will be the quorum driver.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Benoît Canet 2013-09-24 17:07:04 +02:00 • committed by Kevin Wolf
parent 2fe2e29071
commit 030be32184
8 changed files with 24 additions and 2 deletions
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4
block/gluster.c
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@ -611,6 +611,7 @@ static BlockDriver bdrv_gluster = {
.format_name = "gluster",
.protocol_name = "gluster",
.instance_size = sizeof(BDRVGlusterState),
.bdrv_needs_filename = true,
.bdrv_file_open = qemu_gluster_open,
.bdrv_close = qemu_gluster_close,
.bdrv_create = qemu_gluster_create,
@ -631,6 +632,7 @@ static BlockDriver bdrv_gluster_tcp = {
.format_name = "gluster",
.protocol_name = "gluster+tcp",
.instance_size = sizeof(BDRVGlusterState),
.bdrv_needs_filename = true,
.bdrv_file_open = qemu_gluster_open,
.bdrv_close = qemu_gluster_close,
.bdrv_create = qemu_gluster_create,
@ -651,6 +653,7 @@ static BlockDriver bdrv_gluster_unix = {
.format_name = "gluster",
.protocol_name = "gluster+unix",
.instance_size = sizeof(BDRVGlusterState),
.bdrv_needs_filename = true,
.bdrv_file_open = qemu_gluster_open,
.bdrv_close = qemu_gluster_close,
.bdrv_create = qemu_gluster_create,
@ -671,6 +674,7 @@ static BlockDriver bdrv_gluster_rdma = {
.format_name = "gluster",
.protocol_name = "gluster+rdma",
.instance_size = sizeof(BDRVGlusterState),
.bdrv_needs_filename = true,
.bdrv_file_open = qemu_gluster_open,
.bdrv_close = qemu_gluster_close,
.bdrv_create = qemu_gluster_create,