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-rw-r--r--fs/nilfs2/bmap.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index 40d9f453d31..b89e68076ad 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -135,6 +135,13 @@ struct nilfs_bmap {
/* state */
#define NILFS_BMAP_DIRTY 0x00000001
+/**
+ * struct nilfs_bmap_store - shadow copy of bmap state
+ * @data: cached raw block mapping of on-disk inode
+ * @last_allocated_key: cached value of last allocated key for data block
+ * @last_allocated_ptr: cached value of last allocated ptr for data block
+ * @state: cached value of state field of bmap structure
+ */
struct nilfs_bmap_store {
__le64 data[NILFS_BMAP_SIZE / sizeof(__le64)];
__u64 last_allocated_key;