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From: Nadia.Derbey on 7 May 2008 07:40
[PATCH 01/09]

This patch adds an rcu_head to the idr_layer structure in order to free it
after a grace period.

Signed-off-by: Nadia Derbey <Nadia.Derbey(a)bull.net>

---
include/linux/idr.h | 2 ++
1 file changed, 2 insertions(+)

Index: linux-2.6.25-mm1/include/linux/idr.h
===================================================================
--- linux-2.6.25-mm1.orig/include/linux/idr.h 2008-05-06 17:14:24.000000000 +0200
+++ linux-2.6.25-mm1/include/linux/idr.h 2008-05-06 17:20:58.000000000 +0200
@@ -15,6 +15,7 @@
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/init.h>
+#include <linux/rcupdate.h>

#if BITS_PER_LONG == 32
# define IDR_BITS 5
@@ -51,6 +52,7 @@ struct idr_layer {
unsigned long bitmap; /* A zero bit means "space here" */
struct idr_layer *ary[1<<IDR_BITS];
int count; /* When zero, we can release it */
+ struct rcu_head rcu_head;
};

struct idr {

--
--
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Prev: [PATCH 0/9] Scalability requirements for sysv ipc - v3
Next: RTC: Class device support for persistent clock