Speakers
Description
The Android Super partition relies on static reserved space to guarantee OTA upgrade capability. However, this fixed allocation method possesses an inherent defect: if the reserved space is too large, it permanently occupies flash memory and cannot be utilized by the data partition; if it is too small, OTA upgrades will fail due to insufficient space. To address the industry pain points of static partition isolation and low flash utilization, we propose a space-sharing mechanism between the super and data partitions. Distinct from traditional reserved space schemes, this technology enables space sharing between the two partitions. The core idea is that in daily usage scenarios, idle physical blocks within the Super partition are shared with the data partition to expand the storage space available to users; when the super partition requires expansion for OTA upgrades or system maintenance, it can dynamically requisition idle physical blocks from the data partition without causing any data corruption throughout the process.