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authorMikulas Patocka <mpatocka@redhat.com>2011-07-25 17:55:57 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-22 17:43:52 -0700
commit4f72c0cab40536a0be501d85ea4918467ab82ad5 (patch)
treef5f0cc385fed9a32f7fc4451f8618c3b4120bc3d /fs/sysfs/sysfs.h
parent7f9838fd01833ffb30177d964983076924344c9e (diff)
sysfs: use rb-tree for name lookups
sysfs: use rb-tree for name lookups Use red-black tree for name lookups. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/sysfs.h')
-rw-r--r--fs/sysfs/sysfs.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 6348e2c753f6..fe1a9e8650bf 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -11,6 +11,7 @@
#include <linux/lockdep.h>
#include <linux/kobject_ns.h>
#include <linux/fs.h>
+#include <linux/rbtree.h>
struct sysfs_open_dirent;
@@ -21,6 +22,8 @@ struct sysfs_elem_dir {
struct sysfs_dirent *children;
unsigned long subdirs;
+
+ struct rb_root name_tree;
};
struct sysfs_elem_symlink {
@@ -61,6 +64,8 @@ struct sysfs_dirent {
struct sysfs_dirent *s_sibling;
const char *s_name;
+ struct rb_node name_node;
+
const void *s_ns; /* namespace tag */
union {
struct sysfs_elem_dir s_dir;