iomap: expose iomap_apply outside iomap.c
This allows the DAX code to use it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
diff --git a/fs/internal.h b/fs/internal.h
index ba07376..8591786 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -12,6 +12,7 @@
struct super_block;
struct file_system_type;
struct iomap;
+struct iomap_ops;
struct linux_binprm;
struct path;
struct mount;
@@ -164,3 +165,13 @@
extern int do_vfs_ioctl(struct file *file, unsigned int fd, unsigned int cmd,
unsigned long arg);
extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+
+/*
+ * iomap support:
+ */
+typedef loff_t (*iomap_actor_t)(struct inode *inode, loff_t pos, loff_t len,
+ void *data, struct iomap *iomap);
+
+loff_t iomap_apply(struct inode *inode, loff_t pos, loff_t length,
+ unsigned flags, struct iomap_ops *ops, void *data,
+ iomap_actor_t actor);