04-path-to-dev.patch - adds another accessor so path-selectors can
access a path's bdev. This is necessary for devices which need to
send commands down to the device. (see rdac-test-support.patch)
dm-mpath.c | 7 +++++++
dm-path-selector.h | 2 ++
2 files changed, 9 insertions(+)
diff -aurp linux-2.6.5-rc1-udm1-orig/drivers/md/dm-mpath.c linux-2.6.5-rc1-udm1-work/drivers/md/dm-mpath.c
--- linux-2.6.5-rc1-udm1-orig/drivers/md/dm-mpath.c 2004-04-04 12:18:13.494803804 -0700
+++ linux-2.6.5-rc1-udm1-work/drivers/md/dm-mpath.c 2004-04-04 12:18:33.603305930 -0700
@@ -42,6 +42,13 @@ struct path {
struct priority_group *pg;
};
+inline struct block_device *dm_path_to_bdev(struct path *path)
+{
+ return path->dev->bdev;
+}
+
+EXPORT_SYMBOL(dm_path_to_bdev);
+
struct priority_group {
struct list_head list;
diff -aurp linux-2.6.5-rc1-udm1-orig/drivers/md/dm-path-selector.h linux-2.6.5-rc1-udm1-work/drivers/md/dm-path-selector.h
--- linux-2.6.5-rc1-udm1-orig/drivers/md/dm-path-selector.h 2004-04-04 12:18:13.495803681 -0700
+++ linux-2.6.5-rc1-udm1-work/drivers/md/dm-path-selector.h 2004-04-04 12:18:51.689005315 -0700
@@ -16,6 +16,8 @@
struct path;
+struct block_device *dm_path_to_bdev(struct path *path);
+
/*
* We provide an abstraction for the code that chooses which path
* to send some io down.
