Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4628803062d93dadc6ba8e801fd075526904a38c
Commit:     4628803062d93dadc6ba8e801fd075526904a38c
Parent:     2f66858a0ae48faf4c8dc19042f3aff52208dc57
Author:     Greg Kroah-Hartman <[EMAIL PROTECTED]>
AuthorDate: Mon Apr 9 11:52:31 2007 -0400
Committer:  Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Fri Apr 27 10:57:31 2007 -0700

    kobject core: remove rwsem from struct subsystem
    
    It isn't used at all by the driver core anymore, and the few usages of
    it within the kernel have now all been fixed as most of them were using
    it incorrectly.  So remove it.
    
    Now the whole struct subsys can be removed from the system, but that's
    for a later patch...
    
    Cc: Kay Sievers <[EMAIL PROTECTED]>
    Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
 include/linux/kobject.h |    2 --
 lib/kobject.c           |    4 +---
 2 files changed, 1 insertions(+), 5 deletions(-)

diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index d37cd7f..a659a97 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -22,7 +22,6 @@
 #include <linux/sysfs.h>
 #include <linux/compiler.h>
 #include <linux/spinlock.h>
-#include <linux/rwsem.h>
 #include <linux/kref.h>
 #include <linux/kernel.h>
 #include <linux/wait.h>
@@ -177,7 +176,6 @@ extern struct kobject * kset_find_obj(struct kset *, const 
char *);
 
 struct subsystem {
        struct kset             kset;
-       struct rw_semaphore     rwsem;
 };
 
 #define decl_subsys(_name,_type,_uevent_ops) \
diff --git a/lib/kobject.c b/lib/kobject.c
index eb251aa..2882aff 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -652,7 +652,6 @@ struct kobject * kset_find_obj(struct kset * kset, const 
char * name)
 
 void subsystem_init(struct subsystem * s)
 {
-       init_rwsem(&s->rwsem);
        kset_init(&s->kset);
 }
 
@@ -661,8 +660,7 @@ void subsystem_init(struct subsystem * s)
  *     @s:     the subsystem we're registering.
  *
  *     Once we register the subsystem, we want to make sure that 
- *     the kset points back to this subsystem for correct usage of 
- *     the rwsem. 
+ *     the kset points back to this subsystem.
  */
 
 int subsystem_register(struct subsystem * s)
-
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