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kobject: Constify struct kset_uevent_ops

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Constify struct kset_uevent_ops.

This is part of the ops structure constification
effort started by Arjan van de Ven et al.

Benefits of this constification:

 * prevents modification of data that is shared
   (referenced) by many other structure instances
   at runtime

 * detects/prevents accidental (but not intentional)
   modification attempts on archs that enforce
   read-only kernel data at runtime

 * potentially better optimized code as the compiler
   can assume that the const data cannot be changed

 * the compiler/linker move const data into .rodata
   and therefore exclude them from false sharing

Signed-off-by: Emese Revfy <re.emese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Emese Revfy
2009-12-31 14:52:51 +01:00
committed by Greg Kroah-Hartman
parent 985fc176a6
commit 9cd43611cc
9 changed files with 14 additions and 14 deletions
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4
lib/kobject.c
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@@ -789,7 +789,7 @@ static struct kobj_type kset_ktype = {
* If the kset was not able to be created, NULL will be returned.
*/
static struct kset *kset_create(const char *name,
struct kset_uevent_ops *uevent_ops,
const struct kset_uevent_ops *uevent_ops,
struct kobject *parent_kobj)
{
struct kset *kset;
@@ -832,7 +832,7 @@ static struct kset *kset_create(const char *name,
* If the kset was not able to be created, NULL will be returned.
*/
struct kset *kset_create_and_add(const char *name,
struct kset_uevent_ops *uevent_ops,
const struct kset_uevent_ops *uevent_ops,
struct kobject *parent_kobj)
{
struct kset *kset;