bcache: Send a uevent with a cached device's UUID (a25c32be) · Commits · e / devices / android_kernel_teracube_2e

drivers/md/bcache/super.c

+9 −3

Original line number	Diff line number	Diff line
		@@ -825,6 +825,11 @@ static void calc_cached_dev_sectors(struct cache_set *c)
		void bch_cached_dev_run(struct cached_dev *dc)
		{
		struct bcache_device *d = &dc->disk;
		char *env[] = {
		"DRIVER=bcache",
		kasprintf(GFP_KERNEL, "CACHED_UUID=%pU", dc->sb.uuid),
		NULL
		};

		if (atomic_xchg(&dc->running, 1))
		return;
		@@ -841,10 +846,11 @@ void bch_cached_dev_run(struct cached_dev *dc)

		add_disk(d->disk);
		bd_link_disk_holder(dc->bdev, dc->disk.disk);
		#if 0
		char *env[] = { "SYMLINK=label" , NULL };
		/* won't show up in the uevent file, use udevadm monitor -e instead
		* only class / kset properties are persistent */
		kobject_uevent_env(&disk_to_dev(d->disk)->kobj, KOBJ_CHANGE, env);
		#endif
		kfree(env[1]);

		if (sysfs_create_link(&d->kobj, &disk_to_dev(d->disk)->kobj, "dev") \|\|
		sysfs_create_link(&disk_to_dev(d->disk)->kobj, &d->kobj, "bcache"))
		pr_debug("error creating sysfs link");