John Garry 1de67e8e28 block: sanitize chunk_sectors for atomic write limits
Currently we just ensure that a non-zero value in chunk_sectors aligns
with any atomic write boundary, as the blk boundary functionality uses
both these values.

However it is also improper to have atomic write unit max > chunk_sectors
(for non-zero chunk_sectors), as this would lead to splitting of atomic
write bios (which is disallowed).

Sanitize atomic write unit max against chunk_sectors to avoid any
potential problems.

Fixes: d00eea91de ("block: Add extra checks in blk_validate_atomic_write_limits()")
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20250711105258.3135198-3-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-07-17 06:01:16 -06:00
2025-07-17 06:01:16 -06:00
2025-07-15 08:04:17 -06:00
2025-06-21 07:34:28 -07:00
2025-02-19 14:53:27 -07:00
2025-07-07 07:02:42 -06:00
2025-06-29 13:09:04 -07:00

Linux kernel
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