[PATCH 3.15 118/139] Btrfs: output warning instead of error when loading free space cache failed

[Greg Kroah-Hartman]

3.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Miao Xie <miaox@xxxxxxxxxxxxxx>

commit 32d6b47fe6fc1714d5f1bba1b9f38e0ab0ad58a8 upstream.

If we fail to load a free space cache, we can rebuild it from the extent tree,
so it is not a serious error, we should not output a error message that
would make the users uncomfortable. This patch uses warning message instead
of it.

Signed-off-by: Miao Xie <miaox@xxxxxxxxxxxxxx>
Signed-off-by: Chris Mason <clm@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 fs/btrfs/free-space-cache.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -831,7 +831,7 @@ int load_free_space_cache(struct btrfs_f
 
 	if (!matched) {
 		__btrfs_remove_free_space_cache(ctl);
-		btrfs_err(fs_info, "block group %llu has wrong amount of free space",
+		btrfs_warn(fs_info, "block group %llu has wrong amount of free space",
 			block_group->key.objectid);
 		ret = -1;
 	}
@@ -843,7 +843,7 @@ out:
 		spin_unlock(&block_group->lock);
 		ret = 0;
 
-		btrfs_err(fs_info, "failed to load free space cache for block group %llu",
+		btrfs_warn(fs_info, "failed to load free space cache for block group %llu, rebuild it now",
 			block_group->key.objectid);
 	}
 


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