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

Christoph Hellwig
2023-06-06T07:41:09Z

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

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
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