Anatol Belski 4c7e2b83c1 block: aligned: Query direct alignment in AlignedFile ...

Move the statx STATX_DIOALIGN probe out of DiskTopology into a free
probe_direct_alignment helper keyed on a raw fd. The helper gates on the
O_DIRECT open flag and returns the kernel reported alignment only when
direct I/O is in effect, and None otherwise. DiskTopology::probe keeps
the same call path and result.

AlignedFile::new now determines its O_DIRECT block alignment from
probe_direct_alignment instead of trial reads at 512 and 4096, falling
back to SECTOR_SIZE when the kernel does not report a value. This
matches how the raw and fixed VHD workers determine alignment, so all
backends agree on one source of truth.

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

2026-06-20 11:46:17 +00:00

..

src

block: aligned: Query direct alignment in AlignedFile

2026-06-20 11:46:17 +00:00

Cargo.toml

performance-metrics: Switch to QcowDisk

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