git://git.onelab.eu
/
linux-2.6.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
vserver 1.9.5.x5
[linux-2.6.git]
/
arch
/
ppc64
/
kernel
/
HvLpEvent.c
diff --git
a/arch/ppc64/kernel/HvLpEvent.c
b/arch/ppc64/kernel/HvLpEvent.c
index
93eea79
..
9802bee
100644
(file)
--- a/
arch/ppc64/kernel/HvLpEvent.c
+++ b/
arch/ppc64/kernel/HvLpEvent.c
@@
-34,10
+34,18
@@
int HvLpEvent_registerHandler( HvLpEvent_Type eventType, LpEventHandler handler
int HvLpEvent_unregisterHandler( HvLpEvent_Type eventType )
{
int rc = 1;
int HvLpEvent_unregisterHandler( HvLpEvent_Type eventType )
{
int rc = 1;
+
+ might_sleep();
+
if ( eventType < HvLpEvent_Type_NumTypes ) {
if ( !lpEventHandlerPaths[eventType] ) {
lpEventHandler[eventType] = NULL;
rc = 0;
if ( eventType < HvLpEvent_Type_NumTypes ) {
if ( !lpEventHandlerPaths[eventType] ) {
lpEventHandler[eventType] = NULL;
rc = 0;
+
+ /* We now sleep until all other CPUs have scheduled. This ensures that
+ * the deletion is seen by all other CPUs, and that the deleted handler
+ * isn't still running on another CPU when we return. */
+ synchronize_kernel();
}
}
return rc;
}
}
return rc;