On 2/24/25 6:21 PM, Ming Lei wrote:
diff --git a/block/blk.h b/block/blk.h
index 90fa5f28ccab..9cf9a0099416 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -14,6 +14,7 @@
struct elevator_type;
#define BLK_DEV_MAX_SECTORS (LLONG_MAX >> 9)
+#define BLK_MIN_SEGMENT_SIZE 4096
/* Max future timer expiry for timeouts */
#define BLK_MAX_TIMEOUT (5 * HZ)
Hi Ming,
Would you agree with reducing BLK_MIN_SEGMENT_SIZE further, e.g. to 2048
or 1024? Although I'm not aware of any storage devices that need this
change, this change would make it possible to test the new code paths
introduced by this patch on systems with a 4 KiB page size. I wrote
blktests tests for the new code paths before I posted my patch series
"Support limits below the page size"
(https://lore.kernel.org/linux-block/20230612203314.17820-1-bvanassche@xxxxxxx/).
The last two patches of that patch series are still needed to run these
blktests tests.
Thanks,
Bart.
