Patch for Pavel against 2.6.13-rc3-mm3 (after removal of the TIF_FREEZE
patch). The same patch was posted yesterday against 2.6.13-rc3. I verified
again that this patch works fine on i386.
---
Allow notifier to remove itself.
This is done by retrieving the pointer to the next notifier from the list before the
notifier call.
Signed-off-by: Christoph Lameter <[email protected]>
Index: linux-2.6.13-rc3-mm3/kernel/sys.c
===================================================================
--- linux-2.6.13-rc3-mm3.orig/kernel/sys.c 2005-07-29 10:38:39.000000000 -0700
+++ linux-2.6.13-rc3-mm3/kernel/sys.c 2005-07-29 12:29:18.000000000 -0700
@@ -172,15 +172,18 @@
{
int ret=NOTIFY_DONE;
struct notifier_block *nb = *n;
+ struct notifier_block *next;
while(nb)
{
- ret=nb->notifier_call(nb,val,v);
+ /* Determining next here allows the notifier to unregister itself */
+ next = nb->next;
+ ret = nb->notifier_call(nb,val,v);
if(ret&NOTIFY_STOP_MASK)
{
return ret;
}
- nb=nb->next;
+ nb = next;
}
return ret;
}
-
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