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Commit 326eb17d authored by NeilBrown's avatar NeilBrown
Browse files

md: remove unnecessary test for MD_MAJOR in md_ioctl() 



unknown ioctls no longer get this deep into md_ioctl since
md_ioctl_valid() was introduced in 3.14.
So remove the test and the misleading comment.

Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent e1960f8c

drivers/md/md.c

+1 −4
Original line number Diff line number Diff line
@@ -6559,11 +6559,8 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode, 
	/*

	 * The remaining ioctls are changing the state of the

	 * superblock, so we do not allow them on read-only arrays.

	 * However non-MD ioctls (e.g. get-size) will still come through

	 * here and hit the 'default' below, so only disallow

	 * 'md' ioctls, and switch to rw mode if started auto-readonly.

	 */

	if (_IOC_TYPE(cmd) == MD_MAJOR && mddev->ro && mddev->pers) {

	if (mddev->ro && mddev->pers) {

		if (mddev->ro == 2) {

			mddev->ro = 0;

			sysfs_notify_dirent_safe(mddev->sysfs_state);