Use posix_fallocate to allocate blocks for ota preallocation
posix_fallocate ensures that blocks are allocated for desired file
size.
resize_file will not allocate blocks on systems that supports
sparse files. This makes resize_file unsuitable for preallocating
space.
posix_fallocate will not shrink larger files to requested size, so
use both resize_file and posix_fallocate.
Bug: 344641261
Test: Schedule ota update that includes mainline update. Verify
that block count is not zero for temporary file before rebooting.
adb shell stat /data/apex/ota_reserved/full.tmp
atest ApexTestCases
Change-Id: Ic2d6845629b0c6d5d64e032083ff5f787e50fd84
2 files changed
