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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2008-12-20 04:54:54 -0500
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2008-12-20 04:54:54 -0500
commit93b8eef1c098efbea2f1fc0be7e3c681f259a7e7 (patch)
tree462cc8c2bc07bbc825dab2a200891a28d8643329 /include/linux/idr.h
parenta2d781fc8d9b16113dd9440107d73c0f21d7cbef (diff)
parent929096fe9ff1f4b3645cf3919527ab47e8d5e17c (diff)
Merge commit 'v2.6.28-rc9' into next
Diffstat (limited to 'include/linux/idr.h')
-rw-r--r--include/linux/idr.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/idr.h b/include/linux/idr.h
index fa035f96f2a..dd846df8cd3 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -52,13 +52,14 @@ 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 */
+ int layer; /* distance from leaf */
struct rcu_head rcu_head;
};
struct idr {
struct idr_layer *top;
struct idr_layer *id_free;
- int layers;
+ int layers; /* only valid without concurrent changes */
int id_free_cnt;
spinlock_t lock;
};