UBI: add some more comments (c63a491d) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/mtd/ubi/eba.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -797,7 +797,7 @@ int ubi_eba_write_leb_st(struct ubi_device ubi, struct ubi_volume vol,
		/*
		* ubi_eba_atomic_leb_change - change logical eraseblock atomically.
		* @ubi: UBI device description object
		* @vol: volume escription object
		* @vol: volume description object
		* @lnum: logical eraseblock number
		* @buf: data to write
		* @len: how many bytes to write
		@@ -955,6 +955,12 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
		/*
		* We may race with volume deletion/re-size, so we have to hold
		* @ubi->volumes_lock.
		*
		* Note, it is not a problem if we race with volume deletion or re-size
		* here. If the volume is deleted or re-sized while we are moving an
		* eraseblock which belongs to this volume, we'll end up with finding
		* out that this LEB was unmapped at the end (see WL), and drop this
		* PEB.
		*/
		spin_lock(&ubi->volumes_lock);
		vol = ubi->volumes[idx];