udf: Factor out code for creating indirect extent

Factor out code for creating indirect extent from udf_add_aext(). It was
mostly duplicated in two places. Also remove some opencoded versions
of udf_write_aext().

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

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 47bb3f5ca360..269ad3fb2fab 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -159,6 +159,10 @@ extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
 extern long udf_block_map(struct inode *, sector_t);
 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
                          struct kernel_lb_addr *, uint32_t *, sector_t *);
+extern int udf_setup_indirect_aext(struct inode *inode, int block,
+                                   struct extent_position *epos);
+extern int __udf_add_aext(struct inode *inode, struct extent_position *epos,
+                          struct kernel_lb_addr *eloc, uint32_t elen, int inc);
 extern int udf_add_aext(struct inode *, struct extent_position *,
                         struct kernel_lb_addr *, uint32_t, int);
 extern void udf_write_aext(struct inode *, struct extent_position *,