rcu/tiny: support vmalloc in tiny-RCU (64d1d06c) · Commits · 戴 / test

Replace kfree() with kvfree() in rcu_reclaim_tiny(). This makes it possible to release either SLAB or vmalloc objects after a GP. Reviewed-by:

kernel/rcu/tiny.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@
		#include <linux/cpu.h>
		#include <linux/prefetch.h>
		#include <linux/slab.h>
		#include <linux/mm.h>

		#include "rcu.h"

		@@ -86,7 +87,7 @@ static inline bool rcu_reclaim_tiny(struct rcu_head *head)
		rcu_lock_acquire(&rcu_callback_map);
		if (__is_kfree_rcu_offset(offset)) {
		trace_rcu_invoke_kfree_callback("", head, offset);
		kfree((void *)head - offset);
		kvfree((void *)head - offset);
		rcu_lock_release(&rcu_callback_map);
		return true;
		}