Commit af5b8861 authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: Update /dev/disk/by-uuid on device add 



Invalidate pagecache after we write the new superblock and send a
uevent.

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent b76cce12

fs/bcachefs/super.c

+16 −0
Original line number Diff line number Diff line
@@ -1995,6 +1995,22 @@ int bch2_dev_add(struct bch_fs *c, const char *path) 
			goto err_late;

	}



	/*

	 * We just changed the superblock UUID, invalidate cache and send a

	 * uevent to update /dev/disk/by-uuid

	 */

	invalidate_bdev(ca->disk_sb.bdev);



	char uuid_str[37];

	snprintf(uuid_str, sizeof(uuid_str), "UUID=%pUb", &c->sb.uuid);



	char *envp[] = {

		"CHANGE=uuid",

		uuid_str,

		NULL,

	};

	kobject_uevent_env(&ca->disk_sb.bdev->bd_device.kobj, KOBJ_CHANGE, envp);



	up_write(&c->state_lock);

out:

	printbuf_exit(&label);