<linux/hdsmart.h> is not used by kernel code

[powerpc.git] / include / linux / device-mapper.h

diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 8cbc46b..e765e19 100644 (file)
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -39,7 +39,8 @@ typedef void (*dm_dtr_fn) (struct dm_target *ti);
  * The map function must return:
  * < 0: error
  * = 0: The target will handle the io by resubmitting it later
- * > 0: simple remap complete
+ * = 1: simple remap complete
+ * = 2: The target wants to push back the io
  */
 typedef int (*dm_map_fn) (struct dm_target *ti, struct bio *bio,
                          union map_info *map_context);
@@ -50,11 +51,13 @@ typedef int (*dm_map_fn) (struct dm_target *ti, struct bio *bio,
  * 0   : ended successfully
  * 1   : for some reason the io has still not completed (eg,
  *       multipath target might want to requeue a failed io).
+ * 2   : The target wants to push back the io
  */
 typedef int (*dm_endio_fn) (struct dm_target *ti,
                            struct bio *bio, int error,
                            union map_info *map_context);
 
+typedef void (*dm_flush_fn) (struct dm_target *ti);
 typedef void (*dm_presuspend_fn) (struct dm_target *ti);
 typedef void (*dm_postsuspend_fn) (struct dm_target *ti);
 typedef int (*dm_preresume_fn) (struct dm_target *ti);
@@ -71,6 +74,11 @@ typedef int (*dm_ioctl_fn) (struct dm_target *ti, struct inode *inode,
 
 void dm_error(const char *message);
 
+/*
+ * Combine device limits.
+ */
+void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev);
+
 /*
  * Constructors should call these functions to ensure destination devices
  * are opened/closed correctly.
@@ -91,6 +99,7 @@ struct target_type {
        dm_dtr_fn dtr;
        dm_map_fn map;
        dm_endio_fn end_io;
+       dm_flush_fn flush;
        dm_presuspend_fn presuspend;
        dm_postsuspend_fn postsuspend;
        dm_preresume_fn preresume;
@@ -106,7 +115,9 @@ struct io_restrictions {
        unsigned short          max_hw_segments;
        unsigned short          hardsect_size;
        unsigned int            max_segment_size;
+       unsigned int            max_hw_sectors;
        unsigned long           seg_boundary_mask;
+       unsigned long           bounce_pfn;
        unsigned char           no_cluster; /* inverted so that 0 is default */
 };
 
@@ -166,7 +177,7 @@ void *dm_get_mdptr(struct mapped_device *md);
 /*
  * A device can still be used while suspended, but I/O is deferred.
  */
-int dm_suspend(struct mapped_device *md, int with_lockfs);
+int dm_suspend(struct mapped_device *md, unsigned suspend_flags);
 int dm_resume(struct mapped_device *md);
 
 /*
@@ -174,13 +185,17 @@ int dm_resume(struct mapped_device *md);
  */
 uint32_t dm_get_event_nr(struct mapped_device *md);
 int dm_wait_event(struct mapped_device *md, int event_nr);
+uint32_t dm_next_uevent_seq(struct mapped_device *md);
+void dm_uevent_add(struct mapped_device *md, struct list_head *elist);
 
 /*
  * Info functions.
  */
 const char *dm_device_name(struct mapped_device *md);
+int dm_copy_name_and_uuid(struct mapped_device *md, char *name, char *uuid);
 struct gendisk *dm_disk(struct mapped_device *md);
 int dm_suspended(struct mapped_device *md);
+int dm_noflush_suspending(struct dm_target *ti);
 
 /*
  * Geometry functions.