Commit 2c46eab8 authored by Zhang Yi's avatar Zhang Yi Committed by Christian Brauner
Browse files

dm: clear unmap write zeroes limits when disabling write zeroes 



The unmap write zeroes limits have been set to the stacking queue limits
by default in blk_set_stacking_limits() and blk_stack_limits(), but it
should be cleared if any underlying device does not support it.

Signed-off-by: default avatarZhang Yi <yi.zhang@huawei.com>
Link: https://lore.kernel.org/20250619111806.3546162-6-yi.zhang@huaweicloud.com


Reviewed-by: default avatar"Martin K. Petersen" <martin.petersen@oracle.com>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 6dffe079

drivers/md/dm-table.c

+3 −1
Original line number Diff line number Diff line
@@ -2065,8 +2065,10 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, 
		limits->discard_alignment = 0;

	}



	if (!dm_table_supports_write_zeroes(t))

	if (!dm_table_supports_write_zeroes(t)) {

		limits->max_write_zeroes_sectors = 0;

		limits->max_hw_wzeroes_unmap_sectors = 0;

	}



	if (!dm_table_supports_secure_erase(t))

		limits->max_secure_erase_sectors = 0;