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authorAndi Kleen <andi@firstfloor.org>2008-07-01 18:48:41 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2008-07-22 06:55:02 +0200
commit4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed (patch)
treec2d3a0f86ade5061a1bb9a14aa702323d729fd54 /kernel
parentdriver core: Suppress sysfs warnings for device_rename(). (diff)
downloadlinux-4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed.tar.xz
linux-4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed.zip
sysdev: Pass the attribute to the low level sysdev show/store function
This allow to dynamically generate attributes and share show/store functions between attributes. Right now most attributes are generated by special macros and lots of duplicated code. With the attribute passed it's instead possible to attach some data to the attribute and then use that in shared low level functions to do different things. I need this for the dynamically generated bank attributes in the x86 machine check code, but it'll allow some further cleanups. I converted all users in tree to the new show/store prototype. It's a single huge patch to avoid unbisectable sections. Runtime tested: x86-32, x86-64 Compiled only: ia64, powerpc Not compile tested/only grep converted: sh, arm, avr32 Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/rtmutex-tester.c7
-rw-r--r--kernel/sched.c8
-rw-r--r--kernel/time/clocksource.c8
3 files changed, 16 insertions, 7 deletions
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index 092e4c620af9..a56f629b057a 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -297,8 +297,8 @@ static int test_func(void *data)
*
* opcode:data
*/
-static ssize_t sysfs_test_command(struct sys_device *dev, const char *buf,
- size_t count)
+static ssize_t sysfs_test_command(struct sys_device *dev, struct sysdev_attribute *attr,
+ const char *buf, size_t count)
{
struct sched_param schedpar;
struct test_thread_data *td;
@@ -360,7 +360,8 @@ static ssize_t sysfs_test_command(struct sys_device *dev, const char *buf,
* @dev: thread to query
* @buf: char buffer to be filled with thread status info
*/
-static ssize_t sysfs_test_status(struct sys_device *dev, char *buf)
+static ssize_t sysfs_test_status(struct sys_device *dev, struct sysdev_attribute *attr,
+ char *buf)
{
struct test_thread_data *td;
struct task_struct *tsk;
diff --git a/kernel/sched.c b/kernel/sched.c
index 99e6d850ecab..b1104ea5d255 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7737,11 +7737,13 @@ static ssize_t sched_power_savings_store(const char *buf, size_t count, int smt)
}
#ifdef CONFIG_SCHED_MC
-static ssize_t sched_mc_power_savings_show(struct sys_device *dev, char *page)
+static ssize_t sched_mc_power_savings_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *page)
{
return sprintf(page, "%u\n", sched_mc_power_savings);
}
static ssize_t sched_mc_power_savings_store(struct sys_device *dev,
+ struct sysdev_attribute *attr,
const char *buf, size_t count)
{
return sched_power_savings_store(buf, count, 0);
@@ -7751,11 +7753,13 @@ static SYSDEV_ATTR(sched_mc_power_savings, 0644, sched_mc_power_savings_show,
#endif
#ifdef CONFIG_SCHED_SMT
-static ssize_t sched_smt_power_savings_show(struct sys_device *dev, char *page)
+static ssize_t sched_smt_power_savings_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *page)
{
return sprintf(page, "%u\n", sched_smt_power_savings);
}
static ssize_t sched_smt_power_savings_store(struct sys_device *dev,
+ struct sysdev_attribute *attr,
const char *buf, size_t count)
{
return sched_power_savings_store(buf, count, 1);
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index dadde5361f32..b1c2da81b050 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -376,7 +376,8 @@ void clocksource_unregister(struct clocksource *cs)
* Provides sysfs interface for listing current clocksource.
*/
static ssize_t
-sysfs_show_current_clocksources(struct sys_device *dev, char *buf)
+sysfs_show_current_clocksources(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
ssize_t count = 0;
@@ -397,6 +398,7 @@ sysfs_show_current_clocksources(struct sys_device *dev, char *buf)
* clocksource selction.
*/
static ssize_t sysfs_override_clocksource(struct sys_device *dev,
+ struct sysdev_attribute *attr,
const char *buf, size_t count)
{
struct clocksource *ovr = NULL;
@@ -449,7 +451,9 @@ static ssize_t sysfs_override_clocksource(struct sys_device *dev,
* Provides sysfs interface for listing registered clocksources
*/
static ssize_t
-sysfs_show_available_clocksources(struct sys_device *dev, char *buf)
+sysfs_show_available_clocksources(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ char *buf)
{
struct clocksource *src;
ssize_t count = 0;