Anatol Belski 0ee0441f2b virtio-devices: block: Derive discard alignment from topology ...

Set discard_sector_alignment from the logical block size
reported by the backend topology instead of hardcoding it
to 1 sector. This gives the guest accurate alignment hints
so it can avoid sub block discards that the filesystem
might silently ignore.

For example, on a 4K block filesystem the alignment is now
8 sectors (4096/512) instead of 1.

For image formats with their own allocation units (QCOW2
clusters, VHD/VHDX block sizes), the ideal alignment would
be derived from the format cluster/block size. This is
left for a followup that surfaces allocation granularity
through DiskTopology.

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

2026-03-19 01:07:49 +00:00

..

src

virtio-devices: block: Derive discard alignment from topology

2026-03-19 01:07:49 +00:00

build.rs

build: Add "fuzzing" as a valid cfg(..) attribute

2024-05-08 08:10:28 +00:00

Cargo.toml

virtio-devices: Add set_notifier() method to VirtioInterrupt

2026-03-18 09:25:27 +00:00