File 0164-btrfsck-make-sure-we-fix-the-block-group-a... of Package btrfsprogs

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File 0164-btrfsck-make-sure-we-fix-the-block-group-accounting-.patch of Package btrfsprogs

From 1cc34194f336d77e96bc11baec9bea765fdc9849 Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Thu, 9 Feb 2012 11:53:33 -0500
Subject: [PATCH 13/18] btrfsck: make sure we fix the block group accounting
 during repair

The block group accounting is fixed after we check the extent back
references.  This makes sure the accounting is fixed unless we
were not able to repair the backrefs.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
---
 btrfsck.c     |   12 ++++++++----
 extent-tree.c |   24 ++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/btrfsck.c b/btrfsck.c
index a451397..3aa19ae 100644
--- a/btrfsck.c
+++ b/btrfsck.c
@@ -3070,7 +3070,12 @@ repair_abort:
 		if (ret) {
 			fprintf(stderr, "failed to repair damaged filesystem, aborting\n");
 			exit(1);
+		} else {
+			btrfs_fix_block_accounting(trans, root);
 		}
+		if (err)
+			fprintf(stderr, "repaired damaged extent references\n");
+		return ret;
 	}
 	return err;
 }
@@ -3263,11 +3268,10 @@ int main(int ac, char **av)
 	}
 
 	ret = check_extents(trans, root, repair);
-	if (ret)
+	if (ret) {
+		fprintf(stderr, "check extents failed with %d!!!!!!!!!\n", ret);
 		goto out;
-
-	if (repair)
-		btrfs_fix_block_accounting(trans, root);
+	}
 
 	fprintf(stderr, "checking fs roots\n");
 	ret = check_fs_roots(root, &root_cache);
diff --git a/extent-tree.c b/extent-tree.c
index 5c4057e..dd593fe 100644
--- a/extent-tree.c
+++ b/extent-tree.c
@@ -1953,6 +1953,21 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
 	return 0;
 }
 
+static int extent_root_pending_ops(struct btrfs_fs_info *info)
+{
+	u64 start;
+	u64 end;
+	int ret;
+
+	ret = find_first_extent_bit(&info->extent_ins, 0, &start,
+				    &end, EXTENT_LOCKED);
+	if (!ret) {
+		ret = find_first_extent_bit(&info->pending_del, 0, &start, &end,
+					    EXTENT_LOCKED);
+	}
+	return ret == 0;
+
+}
 static int finish_current_insert(struct btrfs_trans_handle *trans,
 				 struct btrfs_root *extent_root)
 {
@@ -3380,6 +3395,15 @@ int btrfs_fix_block_accounting(struct btrfs_trans_handle *trans,
 
 	root = root->fs_info->extent_root;
 
+	while(extent_root_pending_ops(fs_info)) {
+		ret = finish_current_insert(trans, root);
+		if (ret)
+			return ret;
+		ret = del_pending_extents(trans, root);
+		if (ret)
+			return ret;
+	}
+
 	while(1) {
 		cache = btrfs_lookup_block_group(fs_info, start);
 		if (!cache)
-- 
1.7.6.233.gd79bc

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File 0164-btrfsck-make-sure-we-fix-the-block-group-accounting-.patch of Package btrfsprogs

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