Anatol Belski 4da6067408 block: qcow: Convert qcow refcount block I/O to positional ...

The refcount block read and write helpers took a file whose cursor was
positioned by a preceding seek. Pass the target offset down instead and
use positional read_exact_at and write_all_at on the AlignedFile, so
the block methods no longer seek. The byte aligned and sub byte writers
build a buffer and issue one positional write, keeping the previous
batching.

The result is unchanged, as the calls still route through the
AlignedFile O_DIRECT bounce.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>

2026-06-30 17:11:35 +00:00

..

src

block: qcow: Convert qcow refcount block I/O to positional

2026-06-30 17:11:35 +00:00

Cargo.toml

performance-metrics: Switch to QcowDisk

2026-06-08 13:19:32 +00:00