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authorDavid Howells <dhowells@redhat.com>2009-11-19 18:10:23 +0000
committerDavid Howells <dhowells@redhat.com>2009-11-19 18:10:23 +0000
commit3d7a641e544e428191667e8b1f83f96fa46dbd65 (patch)
tree172aa672eca96b94f5531885b82abb82b43c7d8a /include
parent66b00a7c93ec782d118d2c03bd599cfd041e80a1 (diff)
SLOW_WORK: Wait for outstanding work items belonging to a module to clear
Wait for outstanding slow work items belonging to a module to clear when unregistering that module as a user of the facility. This prevents the put_ref code of a work item from being taken away before it returns. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/slow-work.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/slow-work.h b/include/linux/slow-work.h
index b65c8881f07..9adb2b30754 100644
--- a/include/linux/slow-work.h
+++ b/include/linux/slow-work.h
@@ -24,6 +24,9 @@ struct slow_work;
* The operations used to support slow work items
*/
struct slow_work_ops {
+ /* owner */
+ struct module *owner;
+
/* get a ref on a work item
* - return 0 if successful, -ve if not
*/
@@ -42,6 +45,7 @@ struct slow_work_ops {
* queued
*/
struct slow_work {
+ struct module *owner; /* the owning module */
unsigned long flags;
#define SLOW_WORK_PENDING 0 /* item pending (further) execution */
#define SLOW_WORK_EXECUTING 1 /* item currently executing */
@@ -84,8 +88,8 @@ static inline void vslow_work_init(struct slow_work *work,
}
extern int slow_work_enqueue(struct slow_work *work);
-extern int slow_work_register_user(void);
-extern void slow_work_unregister_user(void);
+extern int slow_work_register_user(struct module *owner);
+extern void slow_work_unregister_user(struct module *owner);
#ifdef CONFIG_SYSCTL
extern ctl_table slow_work_sysctls[];