Commit de3ea66e authored by Guoqing Jiang's avatar Guoqing Jiang Committed by Song Liu
Browse files

md: add comments in md_integrity_register 



Given it is not obvious for the error handling, let's try to add some
comments here to make it clear.

Signed-off-by: default avatarGuoqing Jiang <jiangguoqing@kylinos.cn>
Signed-off-by: default avatarSong Liu <song@kernel.org>
parent daee2024

drivers/md/md.c

+6 −0
Original line number Diff line number Diff line
@@ -2343,6 +2343,12 @@ int md_integrity_register(struct mddev *mddev) 
	if (bioset_integrity_create(&mddev->bio_set, BIO_POOL_SIZE) ||

	    (mddev->level != 1 && mddev->level != 10 &&

	     bioset_integrity_create(&mddev->io_acct_set, BIO_POOL_SIZE))) {

		/*

		 * No need to handle the failure of bioset_integrity_create,

		 * because the function is called by md_run() -> pers->run(),

		 * md_run calls bioset_exit -> bioset_integrity_free in case

		 * of failure case.

		 */

		pr_err("md: failed to create integrity pool for %s\n",

		       mdname(mddev));

		return -EINVAL;