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Pavel Hrdina 3e1d2c93a3 storage: add support for QCOW2 cluster_size option 
The default value hard-coded in QEMU (64KiB) is not always the ideal.
Having a possibility to set the cluster_size by user may in specific
use-cases improve performance for QCOW2 images.

QEMU internally has some limits, the value has to be between 512B and
2048KiB and must by power of two, except when the image has Extended L2
Entries the minimal value has to be 16KiB.

Since qemu-img ensures the value is correct and the limit is not always
the same libvirt will not duplicate any of these checks as the error
message from qemu-img is good enough:

    Cluster size must be a power of two between 512 and 2048k

Resolves: https://gitlab.com/libvirt/libvirt/-/issues/154

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2021-05-21 14:00:43 +02:00
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fonts meson: add rule to build and install only web documentation 2020-08-03 09:27:06 +02:00
gitdm gitdm: add more individual contributors 2020-09-25 16:00:06 +02:00
html meson: add rule to build and install only web documentation 2020-08-03 09:27:06 +02:00
internals lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
js meson: add rule to build and install only web documentation 2020-08-03 09:27:06 +02:00
kbase docs: kbase: Add a doc on merging disk image chains 2021-05-11 11:23:57 +02:00
logos docs: fix misc spelling errors reported by codespell 2020-10-05 10:28:37 +01:00
manpages virsh: Expose new win-dmp dump format 2021-05-20 16:24:06 +02:00
schemas storage: add support for QCOW2 cluster_size option 2021-05-21 14:00:43 +02:00
404.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
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aclpolkit.rst docs: html.in: Convert aclpolkit to rst 2021-03-15 17:31:35 +01:00
advanced-tests.rst lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
android-chrome-192x192.png docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
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api_extension.rst lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
api.rst docs: html.in: Convert api to rst 2021-03-15 17:31:35 +01:00
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apps.rst docs: html.in: Convert apps to rst 2021-03-15 17:31:35 +01:00
auditlog.rst docs: html.in: Convert auditlog to rst 2021-03-15 17:31:57 +01:00
auth.rst docs: auth: Fix a couple of stylistic issues 2021-03-23 17:55:06 +01:00
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cgroups.html.in vircgroup: introduce nested cgroup to properly work with systemd 2021-02-10 13:37:12 +01:00
ci.rst docs: Update CI documentation 2020-07-03 11:00:51 +02:00
coding-style.rst lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
committer-guidelines.rst meson: adjust our documentation to mention meson instead of autoconf 2020-08-03 09:27:09 +02:00
compiling.rst docs/compiling: Add note on how to check minimum meson version 2021-03-16 10:49:33 +01:00
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daemons.rst docs: fix misc spelling errors reported by codespell 2020-10-05 10:28:37 +01:00
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developer-tooling.rst docs: Add developer-tooling.rst 2020-04-08 09:32:35 +02:00
devguide.html.in docs: update all GIT repo examples to use https:// protocol 2018-03-21 14:48:01 +00:00
docs.html.in docs: xsl: Unify stylability of main container element 2020-11-16 14:04:04 +01:00
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drivers.html.in secrets: add support for running secret driver in embedded mode 2020-01-27 11:04:29 +00:00
drvbhyve.html.in docs: bhyve: document virtio-9p support 2020-10-12 15:26:00 +04:00
drvesx.html.in docs: fix misc spelling errors reported by codespell 2020-10-05 10:28:37 +01:00
drvhyperv.html.in docs: drop support for Windows versions prior to 2012R2 2020-11-09 15:26:02 +00:00
drvlxc.html.in docs: Document lxc.conf location 2021-03-12 10:52:41 +01:00
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drvsecret.html.in docs: fix since version in driver documentation 2020-01-27 17:36:05 +01:00
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drvxen.html.in docs: Document libxl.conf location 2021-03-12 10:52:51 +01:00
errors.html.in docs: Grammar and spelling fixes 2018-05-03 12:40:37 +01:00
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firewall.html.in doc: document new filters and not documented ones 2020-11-04 17:21:45 +01:00
format.html.in docs: fix misc spelling errors reported by codespell 2020-10-05 10:28:37 +01:00
formatbackup.rst conf: backup: Format index of 'store' 2020-12-08 15:12:34 +01:00
formatcaps.html.in conf: add support for specifying CPU "dies" parameter 2020-01-16 15:11:42 +00:00
formatcheckpoint.rst conf: checkpoint: Don't require <domain> when redefining checkpoints 2020-12-04 16:15:03 +01:00
formatdomain.rst docs: cputune is also supported by the xen driver 2021-05-04 16:37:17 -06:00
formatdomaincaps.html.in conf: domcaps: Report device <filesystem> 2021-05-18 14:33:21 +02:00
formatnetwork.html.in Fix format network dns doc 2021-01-26 14:29:48 +01:00
formatnetworkport.html.in docs: formatnetworkport: Fix typos 2021-04-01 13:32:25 +02:00
formatnode.html.in nodedev: support auto-start property for mdevs 2021-05-20 11:10:08 +02:00
formatnwfilter.html.in doc: document new filters and not documented ones 2020-11-04 17:21:45 +01:00
formatsecret.html.in docs: secret: Unify and sanitize examples on how to set secret value 2020-01-28 18:10:36 +01:00
formatsnapshot.html.in conf: snapshot: Add support for <metadata_cache> 2021-01-08 15:27:00 +01:00
formatstorage.html.in storage: add support for QCOW2 cluster_size option 2021-05-21 14:00:43 +02:00
formatstoragecaps.html.in docs: Fix link for virConnectGetStoragePoolCapabilities 2020-12-02 16:15:43 +01:00
formatstorageencryption.html.in docs: support qcow2 format in luks encryption volume 2021-01-05 13:54:11 +01:00
generic.css docs: css: Make definition list 'code' entries bold when converted from rst 2020-08-03 18:41:11 +02:00
glib-adoption.rst docs: glib-adoption: add string arrays and objects 2020-10-02 14:10:44 +02:00
goals.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
governance.html.in docs/governance: Clarify the version number of the LGPL 2019-01-25 14:04:20 +01:00
hacking.rst Revert "docs: Drop glib-adoption.rst" 2020-10-02 14:10:40 +02:00
hooks.html.in docs: fix misc spelling errors reported by codespell 2020-10-05 10:28:37 +01:00
index.html.in docs: use a relative link to the kbase page 2021-02-03 16:33:18 +00:00
internals.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
java.html.in Prefer https: everywhere where possible 2020-09-01 21:58:46 +02:00
libvirt-daemon-arch.png
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libvirt-go.rst docs: Point to pkg.go.dev instead of godoc.org 2020-07-07 14:07:33 +02:00
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main.css docs: make website responsive for mobile devices 2017-08-07 14:44:40 +01:00
manifest.json docs: Fix syntax-check error 2017-08-02 15:00:28 -04:00
meson.build docs/drvqemu: Convert to RST 2021-04-06 17:00:11 +02:00
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migration.html.in docs: migration: remove xenmigr 2021-01-05 13:40:25 +01:00
mobile.css docs: add advanced search capabilities 2019-04-11 15:20:17 +01:00
mstile-150x150.png docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
newapi.xsl docs: fix libvirt go-import metadata in pages and links in 404 page 2020-08-04 17:06:33 +01:00
newreposetup.rst docs: Document CIRRUS_GITHUB_REPO variable 2020-06-11 12:03:41 +02:00
node.gif
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page.xsl docs: xsl: Unify stylability of main container element 2020-11-16 14:04:04 +01:00
pci-addresses.rst Fix spelling 2021-04-15 15:42:21 +02:00
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platforms.rst docs/platforms: Drop separate link to qemu-kvm on repology.org 2021-04-12 16:09:41 +02:00
programming-languages.rst Fix capitalization "CLang" -> "Clang" 2020-11-12 15:01:42 +01:00
python.html.in doc/python: Update to Python 3 2020-04-20 14:06:25 +01:00
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securityprocess.html.in docs: fix misc spelling errors reported by codespell 2020-10-05 10:28:37 +01:00
site.xsl docs: fix libvirt go-import metadata in pages and links in 404 page 2020-08-04 17:06:33 +01:00
storage.html.in Prefer https: everywhere where possible 2020-09-01 21:58:46 +02:00
strategy.html.in docs: fix misc spelling errors reported by codespell 2020-10-05 10:28:37 +01:00
structures.svg docs: convert FIG files into SVG format 2020-07-10 16:07:02 +02:00
styleguide.rst docs: Document list-tables as recommended 2020-05-11 13:55:27 +02:00
submitting-patches.rst docs/submitting-patches: add reference to DCO 2020-10-09 09:12:39 +02:00
subsite.xsl docs: fix libvirt go-import metadata in pages and links in 404 page 2020-08-04 17:06:33 +01:00
support.html.in docs: Grammar and spelling fixes 2018-05-03 12:40:37 +01:00
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tlscerts.html.in docs: tlscerts: Fix a few broken links 2021-02-16 08:35:09 +01:00
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