1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 87f14e90e984..a23556c32703 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -19,12 +19,16 @@
 #define F2FS_MAX_LOG_SECTOR_SIZE        12      /* 12 bits for 4096 bytes */
 #define F2FS_LOG_SECTORS_PER_BLOCK      3       /* log number for sector/blk */
 #define F2FS_BLKSIZE                    4096    /* support only 4KB block */
+#define F2FS_BLKSIZE_BITS               12      /* bits for F2FS_BLKSIZE */
 #define F2FS_MAX_EXTENSION              64      /* # of extension entries */
 #define F2FS_BLK_ALIGN(x)       (((x) + F2FS_BLKSIZE - 1) / F2FS_BLKSIZE)
 
 #define NULL_ADDR               ((block_t)0)    /* used as block_t addresses */
 #define NEW_ADDR                ((block_t)-1)   /* used as block_t addresses */
 
+#define F2FS_BYTES_TO_BLK(bytes)        ((bytes) >> F2FS_BLKSIZE_BITS)
+#define F2FS_BLK_TO_BYTES(blk)          ((blk) << F2FS_BLKSIZE_BITS)
+
 /* 0, 1(node nid), 2(meta nid) are reserved node id */
 #define F2FS_RESERVED_NODE_NUM          3
 
@@ -87,6 +91,7 @@ struct f2fs_super_block {
 /*
  * For checkpoint
  */
+#define CP_FASTBOOT_FLAG        0x00000020
 #define CP_FSCK_FLAG            0x00000010
 #define CP_ERROR_FLAG           0x00000008
 #define CP_COMPACT_SUM_FLAG     0x00000004
@@ -224,6 +229,8 @@ enum {
         OFFSET_BIT_SHIFT
 };
 
+#define OFFSET_BIT_MASK         (0x07)  /* (0x01 << OFFSET_BIT_SHIFT) - 1 */
+
 struct node_footer {
         __le32 nid;             /* node id */
         __le32 ino;             /* inode nunmber */