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Driver Core: switch all dynamic ksets to kobj_sysfs_ops

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Switch all dynamically created ksets, that export simple attributes,
to kobj_attribute from subsys_attribute. Struct subsys_attribute will
be removed.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Mike Halcrow <mhalcrow@us.ibm.com>
Cc: Phillip Hellewell <phillip@hellewell.homeip.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers 2007-11-02 13:47:53 +01:00 committed by Greg Kroah-Hartman
parent 23b5212cc7
commit 386f275f5d
6 changed files with 54 additions and 33 deletions
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10
fs/ecryptfs/main.c
View File

@ -736,12 +736,13 @@ static int ecryptfs_init_kmem_caches(void)
static struct kset *ecryptfs_kset; static struct kset *ecryptfs_kset;
static ssize_t version_show(struct kset *kset, char *buff) static ssize_t version_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buff)
{ {
return snprintf(buff, PAGE_SIZE, "%d\n", ECRYPTFS_VERSIONING_MASK); return snprintf(buff, PAGE_SIZE, "%d\n", ECRYPTFS_VERSIONING_MASK);
} }
static struct subsys_attribute version_attr = __ATTR_RO(version); static struct kobj_attribute version_attr = __ATTR_RO(version);
static struct ecryptfs_version_str_map_elem { static struct ecryptfs_version_str_map_elem {
u32 flag; u32 flag;
@ -755,7 +756,8 @@ static struct ecryptfs_version_str_map_elem {
{ECRYPTFS_VERSIONING_MULTKEY, "multiple keys per file"} {ECRYPTFS_VERSIONING_MULTKEY, "multiple keys per file"}
}; };
static ssize_t version_str_show(struct kset *kset, char *buff) static ssize_t version_str_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buff)
{ {
int i; int i;
int remaining = PAGE_SIZE; int remaining = PAGE_SIZE;
@ -782,7 +784,7 @@ static ssize_t version_str_show(struct kset *kset, char *buff)
return total_written; return total_written;
} }
static struct subsys_attribute version_attr_str = __ATTR_RO(version_str); static struct kobj_attribute version_attr_str = __ATTR_RO(version_str);
static struct attribute *attributes[] = { static struct attribute *attributes[] = {
&version_attr.attr, &version_attr.attr,

35
kernel/ksysfs.c
View File

@ -17,30 +17,34 @@
#include <linux/sched.h> #include <linux/sched.h>
#define KERNEL_ATTR_RO(_name) \ #define KERNEL_ATTR_RO(_name) \
static struct subsys_attribute _name##_attr = __ATTR_RO(_name) static struct kobj_attribute _name##_attr = __ATTR_RO(_name)
#define KERNEL_ATTR_RW(_name) \ #define KERNEL_ATTR_RW(_name) \
static struct subsys_attribute _name##_attr = \ static struct kobj_attribute _name##_attr = \
__ATTR(_name, 0644, _name##_show, _name##_store) __ATTR(_name, 0644, _name##_show, _name##_store)
#if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET) #if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
/* current uevent sequence number */ /* current uevent sequence number */
static ssize_t uevent_seqnum_show(struct kset *kset, char *page) static ssize_t uevent_seqnum_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{ {
return sprintf(page, "%llu\n", (unsigned long long)uevent_seqnum); return sprintf(buf, "%llu\n", (unsigned long long)uevent_seqnum);
} }
KERNEL_ATTR_RO(uevent_seqnum); KERNEL_ATTR_RO(uevent_seqnum);
/* uevent helper program, used during early boo */ /* uevent helper program, used during early boo */
static ssize_t uevent_helper_show(struct kset *kset, char *page) static ssize_t uevent_helper_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{ {
return sprintf(page, "%s\n", uevent_helper); return sprintf(buf, "%s\n", uevent_helper);
} }
static ssize_t uevent_helper_store(struct kset *kset, const char *page, size_t count) static ssize_t uevent_helper_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{ {
if (count+1 > UEVENT_HELPER_PATH_LEN) if (count+1 > UEVENT_HELPER_PATH_LEN)
return -ENOENT; return -ENOENT;
memcpy(uevent_helper, page, count); memcpy(uevent_helper, buf, count);
uevent_helper[count] = '\0'; uevent_helper[count] = '\0';
if (count && uevent_helper[count-1] == '\n') if (count && uevent_helper[count-1] == '\n')
uevent_helper[count-1] = '\0'; uevent_helper[count-1] = '\0';
@ -50,21 +54,24 @@ KERNEL_ATTR_RW(uevent_helper);
#endif #endif
#ifdef CONFIG_KEXEC #ifdef CONFIG_KEXEC
static ssize_t kexec_loaded_show(struct kset *kset, char *page) static ssize_t kexec_loaded_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{ {
return sprintf(page, "%d\n", !!kexec_image); return sprintf(buf, "%d\n", !!kexec_image);
} }
KERNEL_ATTR_RO(kexec_loaded); KERNEL_ATTR_RO(kexec_loaded);
static ssize_t kexec_crash_loaded_show(struct kset *kset, char *page) static ssize_t kexec_crash_loaded_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{ {
return sprintf(page, "%d\n", !!kexec_crash_image); return sprintf(buf, "%d\n", !!kexec_crash_image);
} }
KERNEL_ATTR_RO(kexec_crash_loaded); KERNEL_ATTR_RO(kexec_crash_loaded);
static ssize_t vmcoreinfo_show(struct kset *kset, char *page) static ssize_t vmcoreinfo_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{ {
return sprintf(page, "%lx %x\n", return sprintf(buf, "%lx %x\n",
paddr_vmcoreinfo_note(), paddr_vmcoreinfo_note(),
(unsigned int)vmcoreinfo_max_size); (unsigned int)vmcoreinfo_max_size);
} }

18
kernel/power/disk.c
View File

@ -567,7 +567,8 @@ static const char * const hibernation_modes[] = {
* supports it (as determined by having hibernation_ops). * supports it (as determined by having hibernation_ops).
*/ */
static ssize_t disk_show(struct kset *kset, char *buf) static ssize_t disk_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{ {
int i; int i;
char *start = buf; char *start = buf;
@ -597,7 +598,8 @@ static ssize_t disk_show(struct kset *kset, char *buf)
} }
static ssize_t disk_store(struct kset *kset, const char *buf, size_t n) static ssize_t disk_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{ {
int error = 0; int error = 0;
int i; int i;
@ -642,13 +644,15 @@ static ssize_t disk_store(struct kset *kset, const char *buf, size_t n)
power_attr(disk); power_attr(disk);
static ssize_t resume_show(struct kset *kset, char *buf) static ssize_t resume_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{ {
return sprintf(buf,"%d:%d\n", MAJOR(swsusp_resume_device), return sprintf(buf,"%d:%d\n", MAJOR(swsusp_resume_device),
MINOR(swsusp_resume_device)); MINOR(swsusp_resume_device));
} }
static ssize_t resume_store(struct kset *kset, const char *buf, size_t n) static ssize_t resume_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{ {
unsigned int maj, min; unsigned int maj, min;
dev_t res; dev_t res;
@ -674,12 +678,14 @@ static ssize_t resume_store(struct kset *kset, const char *buf, size_t n)
power_attr(resume); power_attr(resume);
static ssize_t image_size_show(struct kset *kset, char *buf) static ssize_t image_size_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{ {
return sprintf(buf, "%lu\n", image_size); return sprintf(buf, "%lu\n", image_size);
} }
static ssize_t image_size_store(struct kset *kset, const char *buf, size_t n) static ssize_t image_size_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{ {
unsigned long size; unsigned long size;

12
kernel/power/main.c
View File

@ -289,7 +289,8 @@ struct kset *power_kset;
* proper enumerated value, and initiates a suspend transition. * proper enumerated value, and initiates a suspend transition.
*/ */
static ssize_t state_show(struct kset *kset, char *buf) static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{ {
char *s = buf; char *s = buf;
#ifdef CONFIG_SUSPEND #ifdef CONFIG_SUSPEND
@ -310,7 +311,8 @@ static ssize_t state_show(struct kset *kset, char *buf)
return (s - buf); return (s - buf);
} }
static ssize_t state_store(struct kset *kset, const char *buf, size_t n) static ssize_t state_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{ {
#ifdef CONFIG_SUSPEND #ifdef CONFIG_SUSPEND
suspend_state_t state = PM_SUSPEND_STANDBY; suspend_state_t state = PM_SUSPEND_STANDBY;
@ -347,13 +349,15 @@ power_attr(state);
#ifdef CONFIG_PM_TRACE #ifdef CONFIG_PM_TRACE
int pm_trace_enabled; int pm_trace_enabled;
static ssize_t pm_trace_show(struct kset *kset, char *buf) static ssize_t pm_trace_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{ {
return sprintf(buf, "%d\n", pm_trace_enabled); return sprintf(buf, "%d\n", pm_trace_enabled);
} }
static ssize_t static ssize_t
pm_trace_store(struct kset *kset, const char *buf, size_t n) pm_trace_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{ {
int val; int val;

2
kernel/power/power.h
View File

@ -54,7 +54,7 @@ extern int pfn_is_nosave(unsigned long);
extern struct mutex pm_mutex; extern struct mutex pm_mutex;
#define power_attr(_name) \ #define power_attr(_name) \
static struct subsys_attribute _name##_attr = { \ static struct kobj_attribute _name##_attr = { \
.attr = { \ .attr = { \
.name = __stringify(_name), \ .name = __stringify(_name), \
.mode = 0644, \ .mode = 0644, \

8
lib/kobject.c
View File

@ -627,6 +627,7 @@ static void dynamic_kobj_release(struct kobject *kobj)
static struct kobj_type dynamic_kobj_ktype = { static struct kobj_type dynamic_kobj_ktype = {
.release = dynamic_kobj_release, .release = dynamic_kobj_release,
.sysfs_ops = &kobj_sysfs_ops,
}; };
/** /**
@ -836,7 +837,8 @@ static void kset_release(struct kobject *kobj)
kfree(kset); kfree(kset);
} }
static struct kobj_type kset_type = { static struct kobj_type kset_ktype = {
.sysfs_ops = &kobj_sysfs_ops,
.release = kset_release, .release = kset_release,
}; };
@ -869,11 +871,11 @@ static struct kset *kset_create(const char *name,
kset->kobj.parent = parent_kobj; kset->kobj.parent = parent_kobj;
/* /*
* The kobject of this kset will have a type of kset_type and belong to * The kobject of this kset will have a type of kset_ktype and belong to
* no kset itself. That way we can properly free it when it is * no kset itself. That way we can properly free it when it is
* finished being used. * finished being used.
*/ */
kset->kobj.ktype = &kset_type; kset->kobj.ktype = &kset_ktype;
kset->kobj.kset = NULL; kset->kobj.kset = NULL;
return kset; return kset;