File 0162-btrfsck-make-sure-to-dirty-all-block-group... of Package btrfsprogs

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File 0162-btrfsck-make-sure-to-dirty-all-block-groups-as-we-fi.patch of Package btrfsprogs

From 494ba283ed46df812d56652d6ccc1b548bb5fe17 Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Thu, 9 Feb 2012 09:29:19 -0500
Subject: [PATCH 11/18] btrfsck: make sure to dirty all block groups as we fix
 accounting

The code that corrects the count of bytes used in each block group
was only marking block groups dirty when they contained extents.  This
fixes things to dirty all the block groups, so any empty block groups
are written with their correct (zero) count.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
---
 extent-tree.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/extent-tree.c b/extent-tree.c
index 544ab2f..5c4057e 100644
--- a/extent-tree.c
+++ b/extent-tree.c
@@ -3378,6 +3378,8 @@ int btrfs_fix_block_accounting(struct btrfs_trans_handle *trans,
 	struct btrfs_block_group_cache *cache;
 	struct btrfs_fs_info *fs_info = root->fs_info;
 
+	root = root->fs_info->extent_root;
+
 	while(1) {
 		cache = btrfs_lookup_block_group(fs_info, start);
 		if (!cache)
@@ -3385,6 +3387,10 @@ int btrfs_fix_block_accounting(struct btrfs_trans_handle *trans,
 		start = cache->key.objectid + cache->key.offset;
 		btrfs_set_block_group_used(&cache->item, 0);
 		cache->space_info->bytes_used = 0;
+		set_extent_bits(&root->fs_info->block_group_cache,
+				cache->key.objectid,
+				cache->key.objectid + cache->key.offset -1,
+				BLOCK_GROUP_DIRTY, GFP_NOFS);
 	}
 
 	btrfs_init_path(&path);
-- 
1.7.6.233.gd79bc

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File 0162-btrfsck-make-sure-to-dirty-all-block-groups-as-we-fi.patch of Package btrfsprogs

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