[RFC PATCH v2 07/19] mm: split off pages_volatile function

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This splits off the pages_volatile function. The next patch will use
this function.

Signed-off-by: Stefan Roesch <shr@xxxxxxxxxxxx>
---
 mm/ksm.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 23d6944f78ad..7f3b28b7536e 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -3271,8 +3271,7 @@ static ssize_t pages_unshared_show(struct kobject *kobj,
 }
 KSM_ATTR_RO(pages_unshared);
 
-static ssize_t pages_volatile_show(struct kobject *kobj,
-				   struct kobj_attribute *attr, char *buf)
+static long pages_volatile(void)
 {
 	long ksm_pages_volatile;
 
@@ -3284,7 +3283,14 @@ static ssize_t pages_volatile_show(struct kobject *kobj,
 	 */
 	if (ksm_pages_volatile < 0)
 		ksm_pages_volatile = 0;
-	return sysfs_emit(buf, "%ld\n", ksm_pages_volatile);
+
+	return ksm_pages_volatile;
+}
+
+static ssize_t pages_volatile_show(struct kobject *kobj,
+				   struct kobj_attribute *attr, char *buf)
+{
+	return sysfs_emit(buf, "%ld\n", pages_volatile());
 }
 KSM_ATTR_RO(pages_volatile);
 
-- 
2.30.2




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