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[PATCH v7 00/32] Add subcluster allocation to qcow2
From: |
Alberto Garcia |
Subject: |
[PATCH v7 00/32] Add subcluster allocation to qcow2 |
Date: |
Mon, 25 May 2020 20:08:25 +0200 |
Hi,
this is the same as v6 but with a single fix in patch 23.
Please refer to the cover letter of the first version for a full
description of the patches:
https://lists.gnu.org/archive/html/qemu-block/2019-10/msg00983.html
The big change (in v6) is that the code does not need to iterate over
every subcluster anymore. There's now a new function called
qcow2_get_subcluster_range_type() that checks a group of subclusters
in one go using cto and ctz operations.
Berto
v7:
- Patch 23: Fix shadowing of the 'type' variable.
v6: https://lists.gnu.org/archive/html/qemu-block/2020-05/msg01583.html
- Patch 07: Fix indentation issues in the documentation [Eric]
- Patch 14: Use half-open intervals for the subcluster macros.
New method to detected invalid subclusters.
- Patch 15: New patch
- Patch 20: Use a faster method to check the status of a groups of
subclusters without having to iterate over each one of
them.
- Patch 21: Optimize count_contiguous_subclusters() by removing the
iteration over every subcluster.
Earlier detection of invalid subclusters.
Minor documentation updates [Eric]
- Patch 25: Update after the macro changes in patch 14
- Patch 28: Update after the macro changes in patch 14
- Patch 29: Change patch order so this goes before patch 30
- Patch 30: Fix rebase conflicts now that compression_type has been
merged.
Disable toggling extended_l2 using amend [Eric]
- Patch 32: Many new tests and refactoring
v5: https://lists.gnu.org/archive/html/qemu-block/2020-05/msg00251.html
v4: https://lists.gnu.org/archive/html/qemu-block/2020-03/msg00966.html
v3: https://lists.gnu.org/archive/html/qemu-block/2019-12/msg00587.html
v2: https://lists.gnu.org/archive/html/qemu-block/2019-10/msg01642.html
v1: https://lists.gnu.org/archive/html/qemu-block/2019-10/msg00983.html
Alberto Garcia (32):
qcow2: Make Qcow2AioTask store the full host offset
qcow2: Convert qcow2_get_cluster_offset() into qcow2_get_host_offset()
qcow2: Add calculate_l2_meta()
qcow2: Split cluster_needs_cow() out of count_cow_clusters()
qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied()
qcow2: Add get_l2_entry() and set_l2_entry()
qcow2: Document the Extended L2 Entries feature
qcow2: Add dummy has_subclusters() function
qcow2: Add subcluster-related fields to BDRVQcow2State
qcow2: Add offset_to_sc_index()
qcow2: Add offset_into_subcluster() and size_to_subclusters()
qcow2: Add l2_entry_size()
qcow2: Update get/set_l2_entry() and add get/set_l2_bitmap()
qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type()
qcow2: Add qcow2_get_subcluster_range_type()
qcow2: Add qcow2_cluster_is_allocated()
qcow2: Add cluster type parameter to qcow2_get_host_offset()
qcow2: Replace QCOW2_CLUSTER_* with QCOW2_SUBCLUSTER_*
qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC
qcow2: Add subcluster support to calculate_l2_meta()
qcow2: Add subcluster support to qcow2_get_host_offset()
qcow2: Add subcluster support to zero_in_l2_slice()
qcow2: Add subcluster support to discard_in_l2_slice()
qcow2: Add subcluster support to check_refcounts_l2()
qcow2: Update L2 bitmap in qcow2_alloc_cluster_link_l2()
qcow2: Clear the L2 bitmap when allocating a compressed cluster
qcow2: Add subcluster support to handle_alloc_space()
qcow2: Add subcluster support to qcow2_co_pwrite_zeroes()
qcow2: Add subcluster support to qcow2_measure()
qcow2: Add the 'extended_l2' option and the QCOW2_INCOMPAT_EXTL2 bit
qcow2: Assert that expand_zero_clusters_in_l1() does not support
subclusters
iotests: Add tests for qcow2 images with extended L2 entries
docs/interop/qcow2.txt | 68 ++-
docs/qcow2-cache.txt | 19 +-
qapi/block-core.json | 7 +
block/qcow2.h | 203 ++++++-
include/block/block_int.h | 1 +
block/qcow2-cluster.c | 912 +++++++++++++++++++++----------
block/qcow2-refcount.c | 38 +-
block/qcow2.c | 291 ++++++----
block/trace-events | 2 +-
tests/qemu-iotests/031.out | 8 +-
tests/qemu-iotests/036.out | 4 +-
tests/qemu-iotests/049.out | 102 ++--
tests/qemu-iotests/060.out | 1 +
tests/qemu-iotests/061 | 6 +
tests/qemu-iotests/061.out | 25 +-
tests/qemu-iotests/065 | 12 +-
tests/qemu-iotests/082.out | 48 +-
tests/qemu-iotests/085.out | 38 +-
tests/qemu-iotests/144.out | 4 +-
tests/qemu-iotests/182.out | 2 +-
tests/qemu-iotests/185.out | 8 +-
tests/qemu-iotests/198.out | 2 +
tests/qemu-iotests/206.out | 4 +
tests/qemu-iotests/242.out | 5 +
tests/qemu-iotests/255.out | 8 +-
tests/qemu-iotests/271 | 705 ++++++++++++++++++++++++
tests/qemu-iotests/271.out | 603 ++++++++++++++++++++
tests/qemu-iotests/274.out | 49 +-
tests/qemu-iotests/280.out | 2 +-
tests/qemu-iotests/common.filter | 1 +
tests/qemu-iotests/group | 1 +
31 files changed, 2617 insertions(+), 562 deletions(-)
create mode 100755 tests/qemu-iotests/271
create mode 100644 tests/qemu-iotests/271.out
--
2.20.1
- [PATCH v7 00/32] Add subcluster allocation to qcow2,
Alberto Garcia <=
[PATCH v7 15/32] qcow2: Add qcow2_get_subcluster_range_type(), Alberto Garcia, 2020/05/25
[PATCH v7 06/32] qcow2: Add get_l2_entry() and set_l2_entry(), Alberto Garcia, 2020/05/25
[PATCH v7 09/32] qcow2: Add subcluster-related fields to BDRVQcow2State, Alberto Garcia, 2020/05/25