From af1be4f851db4f4975f0139211a6561776ef37c0 Mon Sep 17 00:00:00 2001
From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Tue, 27 Nov 2012 17:39:51 +0000
Subject: Btrfs: fix a scrub regression in case of write errors

This regression was introduced by the device-replace patches.
Scrub immediately stops checking those disks that have write errors.
This is nothing that happens in the real world, but it is wrong
since scrub is the tool to detect and repair defects. Fix it.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 30ba997..8db6a64 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2657,7 +2657,8 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
 		btrfs_put_block_group(cache);
 		if (ret)
 			break;
-		if (atomic64_read(&dev_replace->num_write_errors) > 0) {
+		if (is_dev_replace &&
+		    atomic64_read(&dev_replace->num_write_errors) > 0) {
 			ret = -EIO;
 			break;
 		}
-- 
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