The patch titled
idr: change the idr structure
has been added to the -mm tree. Its filename is
idr-change-the-idr-structure.patch
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------------------------------------------------------
Subject: idr: change the idr structure
From: Nadia Derbey <Nadia.Derbey@xxxxxxxx>
Add an rcu_head to the idr_layer structure in order to free it after a grace
period.
Signed-off-by: Nadia Derbey <Nadia.Derbey@xxxxxxxx>
Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
Cc: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
Cc: Jim Houston <jim.houston@xxxxxxxxxxx>
Cc: Pierre Peiffer <peifferp@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/idr.h | 2 ++
1 file changed, 2 insertions(+)
diff -puN include/linux/idr.h~idr-change-the-idr-structure include/linux/idr.h
--- a/include/linux/idr.h~idr-change-the-idr-structure
+++ a/include/linux/idr.h
@@ -16,6 +16,7 @@
#include <linux/bitops.h>
#include <linux/init.h>
#include <linux/spinlock.h>
+#include <linux/rcupdate.h>
#if BITS_PER_LONG == 32
# define IDR_BITS 5
@@ -52,6 +53,7 @@ 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 {
_
Patches currently in -mm which might be from Nadia.Derbey@xxxxxxxx are
idr-change-the-idr-structure.patch
idr-rename-some-of-the-idr-apis-internal-routines.patch
idr-fix-a-printk-call.patch
idr-error-checking-factorization.patch
idr-make-idr_get_new-rcu-safe.patch
idr-make-idr_find-rcu-safe.patch
idr-make-idr_remove-rcu-safe.patch
ipc-call-idr_find-without-locking-in-ipc_lock.patch
ipc-get-rid-of-ipc_lock_down.patch
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