f2fs: introduce help macro ADDRS_PER_PAGE()

Introduce help macro ADDRS_PER_PAGE() to get the number of address pointers in
direct node or inode.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 0147de7..273fe16 100644 (file)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -652,8 +652,7 @@ static int get_data_block(struct inode *inode, sector_t iblock,
                goto put_out;
        }
 
-       end_offset = IS_INODE(dn.node_page) ?
-                       ADDRS_PER_INODE(F2FS_I(inode)) : ADDRS_PER_BLOCK;
+       end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
        bh_result->b_size = (((size_t)1) << blkbits);
        dn.ofs_in_node++;
        pgofs++;
@@ -675,8 +674,7 @@ get_next:
                if (dn.data_blkaddr == NEW_ADDR)
                        goto put_out;
 
-               end_offset = IS_INODE(dn.node_page) ?
-                       ADDRS_PER_INODE(F2FS_I(inode)) : ADDRS_PER_BLOCK;
+               end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
        }
 
        if (maxblocks > (bh_result->b_size >> blkbits)) {

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 60e7d54..bb365c9 100644 (file)
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -288,10 +288,7 @@ int truncate_blocks(struct inode *inode, u64 from)
                return err;
        }
 
-       if (IS_INODE(dn.node_page))
-               count = ADDRS_PER_INODE(F2FS_I(inode));
-       else
-               count = ADDRS_PER_BLOCK;
+       count = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
 
        count -= dn.ofs_in_node;
        f2fs_bug_on(count < 0);

diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 9eb6487..be1e3e8 100644 (file)
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -301,10 +301,7 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
                goto out;
 
        start = start_bidx_of_node(ofs_of_node(page), fi);
-       if (IS_INODE(page))
-               end = start + ADDRS_PER_INODE(fi);
-       else
-               end = start + ADDRS_PER_BLOCK;
+       end = start + ADDRS_PER_PAGE(page, fi);
 
        f2fs_lock_op(sbi);
 

diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index df53e17..8c03f71 100644 (file)
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -146,6 +146,9 @@ struct f2fs_extent {
 #define ADDRS_PER_BLOCK                1018    /* Address Pointers in a Direct Block */
 #define NIDS_PER_BLOCK         1018    /* Node IDs in an Indirect Block */
 
+#define ADDRS_PER_PAGE(page, fi)       \
+       (IS_INODE(page) ? ADDRS_PER_INODE(fi) : ADDRS_PER_BLOCK)
+
 #define        NODE_DIR1_BLOCK         (DEF_ADDRS_PER_INODE + 1)
 #define        NODE_DIR2_BLOCK         (DEF_ADDRS_PER_INODE + 2)
 #define        NODE_IND1_BLOCK         (DEF_ADDRS_PER_INODE + 3)