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power: cmm - convert sysdev_class to a regular subsystem

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After all sysdev classes are ported to regular driver core entities, the
sysdev implementation will be entirely removed from the kernel.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers 2011-12-21 15:09:51 -08:00 • committed by Greg Kroah-Hartman
parent 3fbacffbe9
commit 6c9d290952
1 changed files with 34 additions and 33 deletions
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67
arch/powerpc/platforms/pseries/cmm.c
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@ -33,7 +33,7 @@
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/stringify.h> #include <linux/stringify.h>
#include <linux/swap.h> #include <linux/swap.h>
#include <linux/sysdev.h> #include <linux/device.h>
#include <asm/firmware.h> #include <asm/firmware.h>
#include <asm/hvcall.h> #include <asm/hvcall.h>
#include <asm/mmu.h> #include <asm/mmu.h>
@ -65,7 +65,7 @@ static unsigned int oom_kb = CMM_OOM_KB;
static unsigned int cmm_debug = CMM_DEBUG; static unsigned int cmm_debug = CMM_DEBUG;
static unsigned int cmm_disabled = CMM_DISABLE; static unsigned int cmm_disabled = CMM_DISABLE;
static unsigned long min_mem_mb = CMM_MIN_MEM_MB; static unsigned long min_mem_mb = CMM_MIN_MEM_MB;
static struct sys_device cmm_sysdev; static struct device cmm_dev;
MODULE_AUTHOR("Brian King <brking@linux.vnet.ibm.com>"); MODULE_AUTHOR("Brian King <brking@linux.vnet.ibm.com>");
MODULE_DESCRIPTION("IBM System p Collaborative Memory Manager"); MODULE_DESCRIPTION("IBM System p Collaborative Memory Manager");
@ -347,25 +347,25 @@ static int cmm_thread(void *dummy)
} }
#define CMM_SHOW(name, format, args...) \ #define CMM_SHOW(name, format, args...) \
static ssize_t show_##name(struct sys_device *dev, \ static ssize_t show_##name(struct device *dev, \
struct sysdev_attribute *attr, \ struct device_attribute *attr, \
char *buf) \ char *buf) \
{ \ { \
return sprintf(buf, format, ##args); \ return sprintf(buf, format, ##args); \
} \ } \
static SYSDEV_ATTR(name, S_IRUGO, show_##name, NULL) static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
CMM_SHOW(loaned_kb, "%lu\n", PAGES2KB(loaned_pages)); CMM_SHOW(loaned_kb, "%lu\n", PAGES2KB(loaned_pages));
CMM_SHOW(loaned_target_kb, "%lu\n", PAGES2KB(loaned_pages_target)); CMM_SHOW(loaned_target_kb, "%lu\n", PAGES2KB(loaned_pages_target));
static ssize_t show_oom_pages(struct sys_device *dev, static ssize_t show_oom_pages(struct device *dev,
struct sysdev_attribute *attr, char *buf) struct device_attribute *attr, char *buf)
{ {
return sprintf(buf, "%lu\n", PAGES2KB(oom_freed_pages)); return sprintf(buf, "%lu\n", PAGES2KB(oom_freed_pages));
} }
static ssize_t store_oom_pages(struct sys_device *dev, static ssize_t store_oom_pages(struct device *dev,
struct sysdev_attribute *attr, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
unsigned long val = simple_strtoul (buf, NULL, 10); unsigned long val = simple_strtoul (buf, NULL, 10);
@ -379,17 +379,18 @@ static ssize_t store_oom_pages(struct sys_device *dev,
return count; return count;
} }
static SYSDEV_ATTR(oom_freed_kb, S_IWUSR| S_IRUGO, static DEVICE_ATTR(oom_freed_kb, S_IWUSR | S_IRUGO,
show_oom_pages, store_oom_pages); show_oom_pages, store_oom_pages);
static struct sysdev_attribute *cmm_attrs[] = { static struct device_attribute *cmm_attrs[] = {
&attr_loaned_kb, &dev_attr_loaned_kb,
&attr_loaned_target_kb, &dev_attr_loaned_target_kb,
&attr_oom_freed_kb, &dev_attr_oom_freed_kb,
}; };
static struct sysdev_class cmm_sysdev_class = { static struct bus_type cmm_subsys = {
.name = "cmm", .name = "cmm",
.dev_name = "cmm",
}; };
/** /**
@ -398,21 +399,21 @@ static struct sysdev_class cmm_sysdev_class = {
* Return value: * Return value:
* 0 on success / other on failure * 0 on success / other on failure
**/ **/
static int cmm_sysfs_register(struct sys_device *sysdev) static int cmm_sysfs_register(struct device *dev)
{ {
int i, rc; int i, rc;
if ((rc = sysdev_class_register(&cmm_sysdev_class))) if ((rc = subsys_system_register(&cmm_subsys, NULL)))
return rc; return rc;
sysdev->id = 0; dev->id = 0;
sysdev->cls = &cmm_sysdev_class; dev->bus = &cmm_subsys;
if ((rc = sysdev_register(sysdev))) if ((rc = device_register(dev)))
goto class_unregister; goto subsys_unregister;
for (i = 0; i < ARRAY_SIZE(cmm_attrs); i++) { for (i = 0; i < ARRAY_SIZE(cmm_attrs); i++) {
if ((rc = sysdev_create_file(sysdev, cmm_attrs[i]))) if ((rc = device_create_file(dev, cmm_attrs[i])))
goto fail; goto fail;
} }
@ -420,10 +421,10 @@ static int cmm_sysfs_register(struct sys_device *sysdev)
fail: fail:
while (--i >= 0) while (--i >= 0)
sysdev_remove_file(sysdev, cmm_attrs[i]); device_remove_file(dev, cmm_attrs[i]);
sysdev_unregister(sysdev); device_unregister(dev);
class_unregister: subsys_unregister:
sysdev_class_unregister(&cmm_sysdev_class); bus_unregister(&cmm_subsys);
return rc; return rc;
} }
@ -431,14 +432,14 @@ class_unregister:
* cmm_unregister_sysfs - Unregister from sysfs * cmm_unregister_sysfs - Unregister from sysfs
* *
**/ **/
static void cmm_unregister_sysfs(struct sys_device *sysdev) static void cmm_unregister_sysfs(struct device *dev)
{ {
int i; int i;
for (i = 0; i < ARRAY_SIZE(cmm_attrs); i++) for (i = 0; i < ARRAY_SIZE(cmm_attrs); i++)
sysdev_remove_file(sysdev, cmm_attrs[i]); device_remove_file(dev, cmm_attrs[i]);
sysdev_unregister(sysdev); device_unregister(dev);
sysdev_class_unregister(&cmm_sysdev_class); bus_unregister(&cmm_subsys);
} }
/** /**
@ -657,7 +658,7 @@ static int cmm_init(void)
if ((rc = register_reboot_notifier(&cmm_reboot_nb))) if ((rc = register_reboot_notifier(&cmm_reboot_nb)))
goto out_oom_notifier; goto out_oom_notifier;
if ((rc = cmm_sysfs_register(&cmm_sysdev))) if ((rc = cmm_sysfs_register(&cmm_dev)))
goto out_reboot_notifier; goto out_reboot_notifier;
if (register_memory_notifier(&cmm_mem_nb) || if (register_memory_notifier(&cmm_mem_nb) ||
@ -678,7 +679,7 @@ static int cmm_init(void)
out_unregister_notifier: out_unregister_notifier:
unregister_memory_notifier(&cmm_mem_nb); unregister_memory_notifier(&cmm_mem_nb);
unregister_memory_isolate_notifier(&cmm_mem_isolate_nb); unregister_memory_isolate_notifier(&cmm_mem_isolate_nb);
cmm_unregister_sysfs(&cmm_sysdev); cmm_unregister_sysfs(&cmm_dev);
out_reboot_notifier: out_reboot_notifier:
unregister_reboot_notifier(&cmm_reboot_nb); unregister_reboot_notifier(&cmm_reboot_nb);
out_oom_notifier: out_oom_notifier:
@ -701,7 +702,7 @@ static void cmm_exit(void)
unregister_memory_notifier(&cmm_mem_nb); unregister_memory_notifier(&cmm_mem_nb);
unregister_memory_isolate_notifier(&cmm_mem_isolate_nb); unregister_memory_isolate_notifier(&cmm_mem_isolate_nb);
cmm_free_pages(loaned_pages); cmm_free_pages(loaned_pages);
cmm_unregister_sysfs(&cmm_sysdev); cmm_unregister_sysfs(&cmm_dev);
} }
/** /**