[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v8 26/34] qcow2: Clear the L2 bitmap when allocating a compressed
From: |
Alberto Garcia |
Subject: |
[PATCH v8 26/34] qcow2: Clear the L2 bitmap when allocating a compressed cluster |
Date: |
Wed, 10 Jun 2020 17:03:04 +0200 |
Compressed clusters always have the bitmap part of the extended L2
entry set to 0.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
---
block/qcow2-cluster.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index 2276cee6d6..deff838fe8 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -861,6 +861,9 @@ int qcow2_alloc_compressed_cluster_offset(BlockDriverState
*bs,
BLKDBG_EVENT(bs->file, BLKDBG_L2_UPDATE_COMPRESSED);
qcow2_cache_entry_mark_dirty(s->l2_table_cache, l2_slice);
set_l2_entry(s, l2_slice, l2_index, cluster_offset);
+ if (has_subclusters(s)) {
+ set_l2_bitmap(s, l2_slice, l2_index, 0);
+ }
qcow2_cache_put(s->l2_table_cache, (void **) &l2_slice);
*host_offset = cluster_offset & s->cluster_offset_mask;
--
2.20.1
- [PATCH v8 05/34] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), (continued)
- [PATCH v8 05/34] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), Alberto Garcia, 2020/06/10
- [PATCH v8 17/34] qcow2: Add cluster type parameter to qcow2_get_host_offset(), Alberto Garcia, 2020/06/10
- [PATCH v8 09/34] qcow2: Add subcluster-related fields to BDRVQcow2State, Alberto Garcia, 2020/06/10
- [PATCH v8 21/34] qcow2: Add subcluster support to qcow2_get_host_offset(), Alberto Garcia, 2020/06/10
- [PATCH v8 24/34] qcow2: Add subcluster support to check_refcounts_l2(), Alberto Garcia, 2020/06/10
- [PATCH v8 18/34] qcow2: Replace QCOW2_CLUSTER_* with QCOW2_SUBCLUSTER_*, Alberto Garcia, 2020/06/10
- [PATCH v8 28/34] qcow2: Add subcluster support to qcow2_co_pwrite_zeroes(), Alberto Garcia, 2020/06/10
- [PATCH v8 34/34] iotests: Add tests for qcow2 images with extended L2 entries, Alberto Garcia, 2020/06/10
- [PATCH v8 19/34] qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC, Alberto Garcia, 2020/06/10
- [PATCH v8 26/34] qcow2: Clear the L2 bitmap when allocating a compressed cluster,
Alberto Garcia <=
- [PATCH v8 31/34] qcow2: Add the 'extended_l2' option and the QCOW2_INCOMPAT_EXTL2 bit, Alberto Garcia, 2020/06/10
- Re: [PATCH v8 00/34] Add subcluster allocation to qcow2, Eric Blake, 2020/06/10
- Re: [PATCH v8 00/34] Add subcluster allocation to qcow2, no-reply, 2020/06/10
- Re: [PATCH v8 00/34] Add subcluster allocation to qcow2, no-reply, 2020/06/10