X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=fs%2Fbtrfs%2Fextent_map.h;h=fb6eeef06bb0a88abcf9297c2c6d9156a35af552;hb=7b78c170dc4f538cc7ee66f47b3aac3f3974a36c;hp=26ac6fe0b2682ed15df0467931d0913c9af6fa4f;hpb=aef8755711a28bb0ecde7780ae6613fcb62cf6f7;p=karo-tx-linux.git

diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 26ac6fe0b268..fb6eeef06bb0 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -10,6 +10,9 @@
 
 /* bits for the flags field */
 #define EXTENT_FLAG_PINNED 0 /* this entry not yet on disk, don't free it */
+#define EXTENT_FLAG_COMPRESSED 1
+#define EXTENT_FLAG_VACANCY 2 /* no file extent item found */
+#define EXTENT_FLAG_PREALLOC 3 /* pre-allocated extent */
 
 struct extent_map {
 	struct rb_node rb_node;
@@ -17,7 +20,9 @@ struct extent_map {
 	/* all of these are in bytes */
 	u64 start;
 	u64 len;
+	u64 orig_start;
 	u64 block_start;
+	u64 block_len;
 	unsigned long flags;
 	struct block_device *bdev;
 	atomic_t refs;
@@ -38,9 +43,9 @@ static inline u64 extent_map_end(struct extent_map *em)
 
 static inline u64 extent_map_block_end(struct extent_map *em)
 {
-	if (em->block_start + em->len < em->block_start)
+	if (em->block_start + em->block_len < em->block_start)
 		return (u64)-1;
-	return em->block_start + em->len;
+	return em->block_start + em->block_len;
 }
 
 void extent_map_tree_init(struct extent_map_tree *tree, gfp_t mask);