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authorMike Anderson <andmike@us.ibm.com>2006-03-27 01:17:54 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-27 08:44:59 -0800
commit1134e5ae79bab61c05657ca35a6297cf87202e35 (patch)
tree16d5e9c722fbe17dc343c65b85628c8e6ee36199 /drivers/md/dm.h
parent9ade92a9a5b0a3a10efa6551b8c67a9277bf0438 (diff)
downloadop-kernel-dev-1134e5ae79bab61c05657ca35a6297cf87202e35.zip
op-kernel-dev-1134e5ae79bab61c05657ca35a6297cf87202e35.tar.gz
[PATCH] dm table: store md
Store an up-pointer to the owning struct mapped_device in every table when it is created. Access it with: struct mapped_device *dm_table_get_md(struct dm_table *t) Tables linked to md must be destroyed before the md itself. Signed-off-by: Mike Anderson <andmike@us.ibm.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/dm.h')
-rw-r--r--drivers/md/dm.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 17ffa8d..79e8000 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -89,7 +89,8 @@ int dm_suspended(struct mapped_device *md);
* Functions for manipulating a table. Tables are also reference
* counted.
*---------------------------------------------------------------*/
-int dm_table_create(struct dm_table **result, int mode, unsigned num_targets);
+int dm_table_create(struct dm_table **result, int mode,
+ unsigned num_targets, struct mapped_device *md);
void dm_table_get(struct dm_table *t);
void dm_table_put(struct dm_table *t);
@@ -107,6 +108,7 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q);
unsigned int dm_table_get_num_targets(struct dm_table *t);
struct list_head *dm_table_get_devices(struct dm_table *t);
int dm_table_get_mode(struct dm_table *t);
+struct mapped_device *dm_table_get_md(struct dm_table *t);
void dm_table_presuspend_targets(struct dm_table *t);
void dm_table_postsuspend_targets(struct dm_table *t);
void dm_table_resume_targets(struct dm_table *t);
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