[PATCH 08/31] block: share code between disk_check_media_change and disk_force_media_change

[Christoph Hellwig <hch@xxxxxx>]

Factor the common logic between disk_check_media_change and
disk_force_media_change into a helper.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 block/disk-events.c | 37 ++++++++++++++++---------------------
 1 file changed, 16 insertions(+), 21 deletions(-)

diff --git a/block/disk-events.c b/block/disk-events.c
index 8b1b63225738f8..06f325662b3494 100644
--- a/block/disk-events.c
+++ b/block/disk-events.c
@@ -262,6 +262,18 @@ static unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask)
 	return pending;
 }
 
+static bool __disk_check_media_change(struct gendisk *disk, unsigned int events)
+{
+	if (!(events & DISK_EVENT_MEDIA_CHANGE))
+		return false;
+
+	if (__invalidate_device(disk->part0, true))
+		pr_warn("VFS: busy inodes on changed media %s\n",
+			disk->disk_name);
+	set_bit(GD_NEED_PART_SCAN, &disk->state);
+	return true;
+}
+
 /**
  * disk_check_media_change - check if a removable media has been changed
  * @disk: gendisk to check
@@ -274,18 +286,9 @@ static unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask)
  */
 bool disk_check_media_change(struct gendisk *disk)
 {
-	unsigned int events;
-
-	events = disk_clear_events(disk, DISK_EVENT_MEDIA_CHANGE |
-				   DISK_EVENT_EJECT_REQUEST);
-	if (!(events & DISK_EVENT_MEDIA_CHANGE))
-		return false;
-
-	if (__invalidate_device(disk->part0, true))
-		pr_warn("VFS: busy inodes on changed media %s\n",
-			disk->disk_name);
-	set_bit(GD_NEED_PART_SCAN, &disk->state);
-	return true;
+	return __disk_check_media_change(disk,
+			disk_clear_events(disk, DISK_EVENT_MEDIA_CHANGE |
+						DISK_EVENT_EJECT_REQUEST));
 }
 EXPORT_SYMBOL(disk_check_media_change);
 
@@ -303,15 +306,7 @@ EXPORT_SYMBOL(disk_check_media_change);
 bool disk_force_media_change(struct gendisk *disk, unsigned int events)
 {
 	disk_event_uevent(disk, events);
-
-	if (!(events & DISK_EVENT_MEDIA_CHANGE))
-		return false;
-
-	if (__invalidate_device(disk->part0, true))
-		pr_warn("VFS: busy inodes on changed media %s\n",
-			disk->disk_name);
-	set_bit(GD_NEED_PART_SCAN, &disk->state);
-	return true;
+	return __disk_check_media_change(disk, events);
 }
 EXPORT_SYMBOL_GPL(disk_force_media_change);
 
-- 
2.39.2