Re: [PATCH v9 3/8] block: Add bdev atomic write limits helpers

From: John Garry
Date: Wed Oct 16 2024 - 08:37:29 EST


On 16/10/2024 13:29, Christoph Hellwig wrote:
On Wed, Oct 16, 2024 at 10:03:20AM +0000, John Garry wrote:
+static inline unsigned int
+bdev_atomic_write_unit_min_bytes(struct block_device *bdev)
+{
+ if (!bdev_can_atomic_write(bdev))
+ return 0;

Aren't the limits always zero when the block device doesn't support
atomic writes and we can skip these checks?

Not necessarily. bdev_can_atomic_write() has the partition alignment checks also.


Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>


thanks, but let me know if you would still like to see any changes.