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Feature #23514
open[api] image-meta needs to support compare-and-write operation
Status:
New
Priority:
Normal
Assignee:
-
Target version:
-
% Done:
0%
Source:
Tags:
Backport:
Reviewed:
Affected Versions:
Pull request ID:
Description
iSCSI would like to re-use image-meta to store port state and persistent group reservations. In the case of PGRs, it needs to be able to protect against racing reservations in a generic fashion. Expand the "metadata_set" APIs to pass a expected value along with the necessary background changes.
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