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Diffstat (limited to 'fs/btrfs/extent_map.h')
-rw-r--r--fs/btrfs/extent_map.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 26ac6fe0b268..abbcbeb28c79 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -10,6 +10,7 @@
/* 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
struct extent_map {
struct rb_node rb_node;
@@ -18,6 +19,7 @@ struct extent_map {
u64 start;
u64 len;
u64 block_start;
+ u64 block_len;
unsigned long flags;
struct block_device *bdev;
atomic_t refs;
@@ -38,9 +40,9 @@ 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);
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