Anatol Belski 15ce890dd3 block: Query actual DIO alignment for file backed images ...

DiskTopology::probe() returned a hardcoded 512 for regular files,
causing O_DIRECT failures on volumes with larger block sizes
(e.g. 4K).

Use statx(STATX_DIOALIGN) (Linux >= 6.1) to query the real per file
DIO memory and offset alignment. Unlike fstatvfs().f_bsize, which
only returns the filesystem preferred I/O block size,
STATX_DIOALIGN reports the true DIO constraints accounting for the
filesystem, underlying block device, and any stacking (loop, dm,
etc.).

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

2026-03-02 18:26:55 +00:00

..

src

block: Query actual DIO alignment for file backed images

2026-03-02 18:26:55 +00:00

Cargo.toml

block: qcow: Validate incompatible feature bits

2026-01-23 18:58:56 +00:00