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authorPeter Maydell <peter.maydell@linaro.org>2019-08-20 10:27:24 +0100
committerPeter Maydell <peter.maydell@linaro.org>2019-08-20 10:27:24 +0100
commit156d320349df5d17e1c4fbf11fad70d2d93f5e26 (patch)
tree0a78ac22f22d415ce806a87ac8a44e1e9d74dc83 /qapi
parent6894576347a71cdf7a1638650ccf3378cfa2a22d (diff)
parentfa27c478102a6b5d1c6b02c005607ad9404b915f (diff)
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Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2019-08-19' into staging
Block patches: - preallocation=falloc/full support for LUKS - Various minor fixes # gpg: Signature made Mon 19 Aug 2019 16:36:45 BST # gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40 # gpg: issuer "mreitz@redhat.com" # gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full] # Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40 * remotes/maxreitz/tags/pull-block-2019-08-19: doc: Preallocation does not require writing zeroes iotests: Fix 141 when run with qed vpc: Do not return RAW from block_status vmdk: Make block_status recurse for flat extents vdi: Make block_status recurse for fixed images iotests: Full mirror to existing non-zero image iotests: Test convert -n to pre-filled image iotests: Convert to preallocated encrypted qcow2 vhdx: Fix .bdrv_has_zero_init() vdi: Fix .bdrv_has_zero_init() qcow2: Fix .bdrv_has_zero_init() block: Use bdrv_has_zero_init_truncate() block: Implement .bdrv_has_zero_init_truncate() block: Add bdrv_has_zero_init_truncate() mirror: Fix bdrv_has_zero_init() use qemu-img: Fix bdrv_has_zero_init() use in convert LUKS: support preallocation Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'qapi')
-rw-r--r--qapi/block-core.json15
1 files changed, 10 insertions, 5 deletions
diff --git a/qapi/block-core.json b/qapi/block-core.json
index e9364a4..e6edd64 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -4212,13 +4212,17 @@
#
# @file Node to create the image format on
# @size Size of the virtual disk in bytes
+# @preallocation Preallocation mode for the new image
+# (since: 4.2)
+# (default: off; allowed values: off, metadata, falloc, full)
#
# Since: 2.12
##
{ 'struct': 'BlockdevCreateOptionsLUKS',
'base': 'QCryptoBlockCreateOptionsLUKS',
'data': { 'file': 'BlockdevRef',
- 'size': 'size' } }
+ 'size': 'size',
+ '*preallocation': 'PreallocMode' } }
##
# @BlockdevCreateOptionsNfs:
@@ -5174,10 +5178,11 @@
# @off: no preallocation
# @metadata: preallocate only for metadata
# @falloc: like @full preallocation but allocate disk space by
-# posix_fallocate() rather than writing zeros.
-# @full: preallocate all data by writing zeros to device to ensure disk
-# space is really available. @full preallocation also sets up
-# metadata correctly.
+# posix_fallocate() rather than writing data.
+# @full: preallocate all data by writing it to the device to ensure
+# disk space is really available. This data may or may not be
+# zero, depending on the image format and storage.
+# @full preallocation also sets up metadata correctly.
#
# Since: 2.2
##