hw-breakpoints: Drop callback and task parameters from modify helper
Drop the callback and task parameters from modify_user_hw_breakpoint().
For now we have no user that need to modify a breakpoint to the point
of changing its handler or its task context.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
diff --git a/kernel/hw_breakpoint.c b/kernel/hw_breakpoint.c
index cf5ee16..2d10b01 100644
--- a/kernel/hw_breakpoint.c
+++ b/kernel/hw_breakpoint.c
@@ -312,9 +312,7 @@
* @tsk: pointer to 'task_struct' of the process to which the address belongs
*/
struct perf_event *
-modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr,
- perf_callback_t triggered,
- struct task_struct *tsk)
+modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr)
{
/*
* FIXME: do it without unregistering
@@ -323,7 +321,8 @@
*/
unregister_hw_breakpoint(bp);
- return perf_event_create_kernel_counter(attr, -1, tsk->pid, triggered);
+ return perf_event_create_kernel_counter(attr, -1, bp->ctx->task->pid,
+ bp->callback);
}
EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint);