* regular calculation of cluster used bitmap of the image file
* cluster allocation on the base of that bitmap (effectively allocation of
new clusters could be done inside the image if that offset space is unused)
* support of DISCARD and WRITE_ZEROES operations
* image check bugfixes
* unit tests fixes
* unit tests covering new functionality
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Merge tag 'pull-parallels-2023-09-20-v2' of https://src.openvz.org/scm/~den/qemu into staging
Parallels format driver:
* regular calculation of cluster used bitmap of the image file
* cluster allocation on the base of that bitmap (effectively allocation of
new clusters could be done inside the image if that offset space is unused)
* support of DISCARD and WRITE_ZEROES operations
* image check bugfixes
* unit tests fixes
* unit tests covering new functionality
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# gpg: Signature made Thu 21 Sep 2023 03:21:18 EDT
# gpg: using RSA key F6F1367F707CF91519227CAD3F30A5AE93779C9F
# gpg: issuer "den@openvz.org"
# gpg: Good signature from "Denis V. Lunev <den@openvz.org>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: F6F1 367F 707C F915 1922 7CAD 3F30 A5AE 9377 9C9F
* tag 'pull-parallels-2023-09-20-v2' of https://src.openvz.org/scm/~den/qemu: (22 commits)
tests: extend test 131 to cover availability of the write-zeroes
parallels: naive implementation of parallels_co_pwrite_zeroes
tests: extend test 131 to cover availability of the discard operation
parallels: naive implementation of parallels_co_pdiscard
parallels: improve readability of allocate_clusters
parallels: naive implementation of allocate_clusters with used bitmap
parallels: update used bitmap in allocate_cluster
parallels: accept multiple clusters in mark_used()
tests: test self-cure of parallels image with duplicated clusters
tests: fix broken deduplication check in parallels format test
parallels: collect bitmap of used clusters at open
parallels: add test which will validate data_off fixes through repair
parallels: fix broken parallels_check_data_off()
tests: ensure that image validation will not cure the corruption
parallels: create mark_used() helper which sets bit in used bitmap
parallels: refactor path when we need to re-check image in parallels_open
parallels: return earlier from parallels_open() function on error
parallels: return earler in fail_format branch in parallels_open()
parallels: invent parallels_opts_prealloc() helper to parse prealloc opts
parallels: fix memory leak in parallels_open()
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
c4c124f331