udf: Use udf_map_block() in udf_getblk()

Use the new function udf_map_block() in udf_getblk().

Signed-off-by: Jan Kara <jack@suse.cz>

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 1a6627c..d3877a3 100644 (file)
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -405,14 +405,15 @@ static struct buffer_head *udf_getblk(struct inode *inode, udf_pblk_t block,
                                      int create, int *err)
 {
        struct buffer_head *bh;
-       struct buffer_head dummy;
-
-       dummy.b_state = 0;
-       dummy.b_blocknr = -1000;
-       *err = udf_get_block(inode, block, &dummy, create);
-       if (!*err && buffer_mapped(&dummy)) {
-               bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
-               if (buffer_new(&dummy)) {
+       struct udf_map_rq map = {
+               .lblk = block,
+               .iflags = UDF_MAP_NOPREALLOC | (create ? UDF_MAP_CREATE : 0),
+       };
+
+       *err = udf_map_block(inode, &map);
+       if (!*err && map.oflags & UDF_BLK_MAPPED) {
+               bh = sb_getblk(inode->i_sb, map.pblk);
+               if (map.oflags & UDF_BLK_NEW) {
                        lock_buffer(bh);
                        memset(bh->b_data, 0x00, inode->i_sb->s_blocksize);
                        set_buffer_uptodate(bh);