From: Michael Holzheu <holzheu@de.ibm.com>
To: akpm@osdl.org
Cc: ioe-lkml@rameria.de, joern@wohnheim.fh-wedel.de,
linux-kernel@vger.kernel.org, mschwid2@de.ibm.com,
penberg@cs.helsinki.fi, greg@kroah.com
Subject: [PATCH 2/3] Add /sys/hypervisor subsystem
Date: Thu, 4 May 2006 16:01:43 +0200 [thread overview]
Message-ID: <20060504160143.2af57564.holzheu@de.ibm.com> (raw)
To have a home for all hypervisors, this patch
creates /sys/hypervisor.
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
---
include/linux/kobject.h | 2 ++
kernel/ksysfs.c | 26 +++++++++++++++++++++-----
diff -urpN linux-2.6.16-hypfs-2006-04-28-update2/include/linux/kobject.h linux-2.6.16-hypfs-2006-04-28-update3/include/linux/kobject.h
--- linux-2.6.16-hypfs-2006-04-28-update2/include/linux/kobject.h 2006-05-04 10:22:37.000000000 +0200
+++ linux-2.6.16-hypfs-2006-04-28-update3/include/linux/kobject.h 2006-05-04 10:29:47.000000000 +0200
@@ -186,6 +186,8 @@ struct subsystem _varname##_subsys = { \
/* The global /sys/kernel/ subsystem for people to chain off of */
extern struct subsystem kernel_subsys;
+/* The global /sys/hypervisor/ subsystem */
+extern struct subsystem hypervisor_subsys;
/**
* Helpers for setting the kset of registered objects.
diff -urpN linux-2.6.16-hypfs-2006-04-28-update2/kernel/ksysfs.c linux-2.6.16-hypfs-2006-04-28-update3/kernel/ksysfs.c
--- linux-2.6.16-hypfs-2006-04-28-update2/kernel/ksysfs.c 2006-05-04 10:22:38.000000000 +0200
+++ linux-2.6.16-hypfs-2006-04-28-update3/kernel/ksysfs.c 2006-05-04 10:30:03.000000000 +0200
@@ -53,6 +53,8 @@ KERNEL_ATTR_RW(uevent_helper);
decl_subsys(kernel, NULL, NULL);
EXPORT_SYMBOL_GPL(kernel_subsys);
+decl_subsys(hypervisor, NULL, NULL);
+EXPORT_SYMBOL_GPL(hypervisor_subsys);
static struct attribute * kernel_attrs[] = {
#ifdef CONFIG_HOTPLUG
@@ -68,12 +70,26 @@ static struct attribute_group kernel_att
static int __init ksysfs_init(void)
{
- int error = subsystem_register(&kernel_subsys);
- if (!error)
- error = sysfs_create_group(&kernel_subsys.kset.kobj,
- &kernel_attr_group);
+ int rc;
- return error;
+ rc = subsystem_register(&hypervisor_subsys);
+ if (rc)
+ goto fail_hyp;
+ rc = subsystem_register(&kernel_subsys);
+ if (rc)
+ goto fail_kernel;
+ rc = sysfs_create_group(&kernel_subsys.kset.kobj,
+ &kernel_attr_group);
+ if (rc)
+ goto fail_group;
+ return 0;
+
+fail_group:
+ subsystem_unregister(&kernel_subsys);
+fail_kernel:
+ subsystem_unregister(&hypervisor_subsys);
+fail_hyp:
+ return rc;
}
core_initcall(ksysfs_init);
reply other threads:[~2006-05-04 14:01 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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