From: David Sterba <dsterba@suse.cz>
Date: Wed, 3 Jun 2015 14:40:34 +0000 (+0200)
Subject: btrfs-progs: ioctl.h: copy commented version of balance structures
X-Git-Tag: upstream/4.16.1~2228
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=493f979c1556fa12656985557983fec4364197ff;p=platform%2Fupstream%2Fbtrfs-progs.git

btrfs-progs: ioctl.h: copy commented version of balance structures

Copied from uapi/linux/btrfs.h, no-op change.

Signed-off-by: David Sterba <dsterba@suse.cz>
---

diff --git a/ioctl.h b/ioctl.h
index a1af0351..df7933ec 100644
--- a/ioctl.h
+++ b/ioctl.h
@@ -214,15 +214,16 @@ struct btrfs_balance_args {
 
 	__u64 flags;
 
-	__u64 limit;
-
+	__u64 limit;		/* limit number of processed chunks */
 	__u64 unused[7];
 } __attribute__ ((__packed__));
 
+/* report balance progress to userspace */
 struct btrfs_balance_progress {
-	__u64 expected;
-	__u64 considered;
-	__u64 completed;
+	__u64 expected;		/* estimated # of chunks that will be
+				 * relocated to fulfill the request */
+	__u64 considered;	/* # of chunks we have considered so far */
+	__u64 completed;	/* # of chunks relocated so far */
 };
 
 #define BTRFS_BALANCE_STATE_RUNNING	(1ULL << 0)