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[v2,10/16] rcu/tiny: support vmalloc in tiny-RCU

Message ID 20200525214800.93072-11-urezki@gmail.com (mailing list archive)
State New, archived
Headers show
Series Introduce kvfree_rcu(1 or 2 arguments) | expand

Commit Message

Uladzislau Rezki May 25, 2020, 9:47 p.m. UTC 
Replace kfree() with kvfree() in rcu_reclaim_tiny().
This makes it possible to release either SLAB or vmalloc
objects after a GP.

Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
 kernel/rcu/tiny.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
index dd572ce7c747..4b99f7b88bee 100644
--- a/kernel/rcu/tiny.c
+++ b/kernel/rcu/tiny.c
@@ -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;
 	}