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authorAndrzej Pietrasiewicz <andrzej.p@samsung.com>2014-01-15 10:45:17 +0100
committerChanho Park <chanho61.park@samsung.com>2014-11-18 11:46:16 +0900
commit13e1e5f0617a18597faeb35dab70343d551831cb (patch)
tree1374f3eece5945bf2b8f2706d4d1aabb9e08670f
parent1dfaeb24a3cff3b3f638ab5d34a99d20766157ec (diff)
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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> [mainline backport] Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
-rw-r--r--include/linux/sysfs.h2
-rw-r--r--mm/backing-dev.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index e2cee22f578..9cd20c8404e 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -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
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index eea1a9dfac3..2e53312b890 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -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),