diff options
| author | Alberto Garcia <berto@igalia.com> | 2020-01-18 20:09:26 +0100 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2020-02-06 13:47:45 +0100 |
| commit | ef97d608c7f069331d8141d1d59df715f4a3beaf (patch) | |
| tree | ac4f7bd5b135f5cc8db8c267e1fc5ce9a927a92b /block/qcow2-snapshot.c | |
| parent | ce95a15e4249e6b0c014e7af708a0a8e65cecfc5 (diff) | |
qcow2: Don't round the L1 table allocation up to the sector size
The L1 table is read from disk using the byte-based bdrv_pread() and
is never accessed beyond its last element, so there's no need to
allocate more memory than that.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: b2e27214ec7b03a585931bcf383ee1ac3a641a10.1579374329.git.berto@igalia.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/qcow2-snapshot.c')
| -rw-r--r-- | block/qcow2-snapshot.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c index 5ab64da1ec..82c32d4c9b 100644 --- a/block/qcow2-snapshot.c +++ b/block/qcow2-snapshot.c @@ -1024,8 +1024,7 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs, return ret; } new_l1_bytes = sn->l1_size * sizeof(uint64_t); - new_l1_table = qemu_try_blockalign(bs->file->bs, - ROUND_UP(new_l1_bytes, 512)); + new_l1_table = qemu_try_blockalign(bs->file->bs, new_l1_bytes); if (new_l1_table == NULL) { return -ENOMEM; } |