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sysfs.h: add __ATTR_RW() macro 

A number of parts of the kernel created their own version of this, might
as well have the sysfs core provide it instead.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2013-07-14 16:05:51 -07:00
parent ad81f0545e
commit b9b3259746
3 changed files with 2 additions and 4 deletions
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2
include/linux/sysfs.h
View File

@ -79,6 +79,8 @@ struct attribute_group {
.show = _name##_show, \
}
#define __ATTR_RW(_name) __ATTR(_name, 0644, _name##_show, _name##_store)
#define __ATTR_NULL { .attr = { .name = NULL } }
#ifdef CONFIG_DEBUG_LOCK_ALLOC

2
kernel/events/core.c
View File

@ -6234,8 +6234,6 @@ perf_event_mux_interval_ms_store(struct device *dev,
return count;
}
#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store)
static struct device_attribute pmu_dev_attrs[] = {
__ATTR_RO(type),
__ATTR_RW(perf_event_mux_interval_ms),

2
mm/backing-dev.c
View File

@ -232,8 +232,6 @@ static ssize_t stable_pages_required_show(struct device *dev,
bdi_cap_stable_pages_required(bdi) ? 1 : 0);
}
#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store)
static struct device_attribute bdi_dev_attrs[] = {
__ATTR_RW(read_ahead_kb),
__ATTR_RW(min_ratio),