diff options
| author | Zdenek Kabelac <zkabelac@redhat.com> | 2021-09-22 21:22:59 +0200 |
|---|---|---|
| committer | Zdenek Kabelac <zkabelac@redhat.com> | 2021-09-23 16:49:14 +0200 |
| commit | 566c2f1828d371d602eca0353905128d069a159b (patch) | |
| tree | 1c41a2ef2d020c716df71430b4cbb1b7177beb7c /WHATS_NEW_DM | |
| parent | ee15065a0f77bf01d1f4184462844f690cde64a8 (diff) | |
| download | lvm2-566c2f1828d371d602eca0353905128d069a159b.tar.gz | |
libdm: support DM_NAME_LIST_FLAG
Kernel patch 8b638081bd4520f63db1defc660666ec5f65bc15
introduced support to return UUID in DM_LIST_DEVICES_CMD.
Useful when asking for UUID of each device where the list
could be now returned directly with NAME && UUID for each device.
Returning UUID is done in backward-compatible way. There's one unused
32-bit word value after the event number. This patch sets the bit
DM_NAME_LIST_FLAG_HAS_UUID if UUID is present and
DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID if it isn't (if none of these bits is
set, then we have an old kernel that doesn't support returning UUIDs). The
UUID is stored after this word. The 'next' value is updated to point after
the UUID, so that old version of libdevmapper will skip the UUID without
attempting to interpret it.
Diffstat (limited to 'WHATS_NEW_DM')
| -rw-r--r-- | WHATS_NEW_DM | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/WHATS_NEW_DM b/WHATS_NEW_DM index c4a22441c..94d782c56 100644 --- a/WHATS_NEW_DM +++ b/WHATS_NEW_DM @@ -1,5 +1,6 @@ Version 1.02.181 - =================================== + Add defines DM_NAME_LIST_FLAG_HAS_UUID, DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID. Enhance tracking of activated devices when preloading dm tree. Fix bug in construction of cache table line (regression from 1.02.159). |