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authorChris Mason <chris.mason@oracle.com>2008-02-05 10:20:17 -0500
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:00 -0400
commit068fe39fa18e8921062e2e16e6aa2b46768b2a35 (patch)
tree604770af3b7d650dc1c184649e9e91ecd8824354
parentdacb473ad81d5c1650cb73d1cb9b866202f6bab0 (diff)
downloadlinux-068fe39fa18e8921062e2e16e6aa2b46768b2a35.tar.gz
Btrfs: Add checks for last byte in disk to allocator grouping
Signed-off-by: Chris Mason <chris.mason@oracle.com>
-rw-r--r--fs/btrfs/extent-tree.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a340eeedd6c7..9e0869959cde 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1611,8 +1611,13 @@ check_pending:
 	}
 	ins->offset = num_bytes;
 	btrfs_free_path(path);
-	if (last_ptr)
+	if (last_ptr) {
 		*last_ptr = ins->objectid + ins->offset;
+		if (*last_ptr ==
+		    btrfs_super_total_bytes(&root->fs_info->super_copy)) {
+			*last_ptr = 0;
+		}
+	}
 	return 0;
 
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