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authorAkinobu Mita <akinobu.mita@gmail.com>2008-04-29 12:03:13 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 19:06:25 +0400
commit199f0ca514f9c17668eec4f935c4ba24cd789f85 (patch)
tree54406e3eb5be58e3350d8f60a64ac78ec3990f97 /include/linux/idr.h
parent801678c5a3b4c79236970bcca27c733f5559e0d1 (diff)
downloadlinux-199f0ca514f9c17668eec4f935c4ba24cd789f85.tar.xz
idr: create idr_layer_cache at boot time
Avoid a possible kmem_cache_create() failure by creating idr_layer_cache unconditionary at boot time rather than creating it on-demand when idr_init() is called the first time. This change also enables us to eliminate the check every time idr_init() is called. [akpm@linux-foundation.org: rename init_id_cache() to idr_init_cache()] [akpm@linux-foundation.org: fix alpha build] Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/idr.h')
-rw-r--r--include/linux/idr.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/idr.h b/include/linux/idr.h
index 0edda411959c..9a2d762124de 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/bitops.h>
+#include <linux/init.h>
#if BITS_PER_LONG == 32
# define IDR_BITS 5
@@ -115,4 +116,6 @@ void ida_remove(struct ida *ida, int id);
void ida_destroy(struct ida *ida);
void ida_init(struct ida *ida);
+void __init idr_init_cache(void);
+
#endif /* __IDR_H__ */