diff options
| author | Alberto Garcia <berto@igalia.com> | 2020-07-10 18:12:55 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2020-08-25 08:33:20 +0200 |
| commit | 39a9f0a50ea0e85f1be4db1c17ecd25387c3851b (patch) | |
| tree | 40ea4e4278ca7a3056d716b46823ca823d90c19f /block/rbd.c | |
| parent | c8fd8554d972904bd0b04673298fea1af7a37780 (diff) | |
qcow2: Update get/set_l2_entry() and add get/set_l2_bitmap()
Extended L2 entries are 128-bit wide: 64 bits for the entry itself and
64 bits for the subcluster allocation bitmap.
In order to support them correctly get/set_l2_entry() need to be
updated so they take the entry width into account in order to
calculate the correct offset.
This patch also adds the get/set_l2_bitmap() functions that are
used to access the bitmaps. For convenience we allow calling
get_l2_bitmap() on images without subclusters. In this case the
returned value is always 0 and has no meaning.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <6ee0f81ae3329c991de125618b3675e1e46acdbb.1594396418.git.berto@igalia.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/rbd.c')
0 files changed, 0 insertions, 0 deletions