Change dm_get_mdptr() to take a struct mapped_device instead of dev_t.
Signed-Off-By: Alasdair G Kergon <[email protected]>
Index: linux-2.6.16-rc5/drivers/md/dm.h
===================================================================
--- linux-2.6.16-rc5.orig/drivers/md/dm.h 2006-03-12 17:47:41.000000000 +0000
+++ linux-2.6.16-rc5/drivers/md/dm.h 2006-03-12 18:15:24.000000000 +0000
@@ -47,7 +47,7 @@ struct mapped_device;
int dm_create(struct mapped_device **md);
int dm_create_with_minor(unsigned int minor, struct mapped_device **md);
void dm_set_mdptr(struct mapped_device *md, void *ptr);
-void *dm_get_mdptr(dev_t dev);
+void *dm_get_mdptr(struct mapped_device *md);
struct mapped_device *dm_get_md(dev_t dev);
/*
Index: linux-2.6.16-rc5/drivers/md/dm.c
===================================================================
--- linux-2.6.16-rc5.orig/drivers/md/dm.c 2006-03-12 18:14:57.000000000 +0000
+++ linux-2.6.16-rc5/drivers/md/dm.c 2006-03-12 18:15:24.000000000 +0000
@@ -976,15 +976,9 @@ struct mapped_device *dm_get_md(dev_t de
return md;
}
-void *dm_get_mdptr(dev_t dev)
+void *dm_get_mdptr(struct mapped_device *md)
{
- struct mapped_device *md;
- void *mdptr = NULL;
-
- md = dm_find_md(dev);
- if (md)
- mdptr = md->interface_ptr;
- return mdptr;
+ return md->interface_ptr;
}
void dm_set_mdptr(struct mapped_device *md, void *ptr)
Index: linux-2.6.16-rc5/drivers/md/dm-ioctl.c
===================================================================
--- linux-2.6.16-rc5.orig/drivers/md/dm-ioctl.c 2006-02-27 05:09:35.000000000 +0000
+++ linux-2.6.16-rc5/drivers/md/dm-ioctl.c 2006-03-12 18:15:24.000000000 +0000
@@ -600,12 +600,22 @@ static int dev_create(struct dm_ioctl *p
*/
static struct hash_cell *__find_device_hash_cell(struct dm_ioctl *param)
{
+ struct mapped_device *md;
+ void *mdptr = NULL;
+
if (*param->uuid)
return __get_uuid_cell(param->uuid);
- else if (*param->name)
+
+ if (*param->name)
return __get_name_cell(param->name);
- else
- return dm_get_mdptr(huge_decode_dev(param->dev));
+
+ md = dm_get_md(huge_decode_dev(param->dev));
+ if (md) {
+ mdptr = dm_get_mdptr(md);
+ dm_put(md);
+ }
+
+ return mdptr;
}
static struct mapped_device *find_device(struct dm_ioctl *param)
-
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