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authorSebastian Ott <sebott@linux.vnet.ibm.com>2009-09-22 22:58:35 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-09-22 22:58:41 +0200
commit8ea7f5590142c0b9ab319aa3cae85cf430a207d8 (patch)
treea23b12fbfe51077cc8df6694f4ab7225462b657d /drivers/s390/cio/css.h
parent255305536c1b56ad09590f1400fb2c788265e34e (diff)
[S390] cio: introduce css_settle
Introduce the css_driver callback settle which can be implemented by a subchannel driver to wait for the subchannel type specific asynchronous work to finish. In channel_subsystem_init_sync we call that for each subchannel driver. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/css.h')
-rw-r--r--drivers/s390/cio/css.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 9763eeec745..54acdaade86 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -75,6 +75,7 @@ struct chp_link;
* @freeze: callback for freezing during hibernation snapshotting
* @thaw: undo work done in @freeze
* @restore: callback for restoring after hibernation
+ * @settle: wait for asynchronous work to finish
* @name: name of the device driver
*/
struct css_driver {
@@ -92,6 +93,7 @@ struct css_driver {
int (*freeze)(struct subchannel *);
int (*thaw) (struct subchannel *);
int (*restore)(struct subchannel *);
+ void (*settle)(void);
const char *name;
};