From: Anand Jain <anand.jain@oracle.com>
Date: Fri, 14 Aug 2015 10:32:56 +0000 (+0800)
Subject: Btrfs: use BTRFS_ERROR_DEV_MISSING_NOT_FOUND when missing device is not found
X-Git-Tag: v4.4-rc1~82^2~39^2~6
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d74a625987a134b00749e3912bdb6d3ac83fd71d;p=karo-tx-linux.git

Btrfs: use BTRFS_ERROR_DEV_MISSING_NOT_FOUND when missing device is not found

Use btrfs specific error code BTRFS_ERROR_DEV_MISSING_NOT_FOUND instead
of -ENOENT.  Next this removes the logging when user specifies "missing"
and we don't find it in the kernel device list. Logging are for system
events not for user input errors.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 99f294cfdcc0..c3e2591dd742 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2041,10 +2041,8 @@ int btrfs_find_device_missing_or_by_path(struct btrfs_root *root,
 			}
 		}
 
-		if (!*device) {
-			btrfs_err(root->fs_info, "no missing device found");
-			return -ENOENT;
-		}
+		if (!*device)
+			return BTRFS_ERROR_DEV_MISSING_NOT_FOUND;
 
 		return 0;
 	} else {