From 140ce28dd3bee8e53acc27f123ae474d69ef66f0 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 2 May 2024 15:00:32 +0200 Subject: block: add a disk_has_partscan helper Add a helper to check if partition scanning is enabled instead of open coding the check in a few places. This now always checks for the hidden flag even if all but one of the callers are never reachable for hidden gendisks. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux/blkdev.h') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 040a22e0eda0..3b18a40a1fc1 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -230,6 +230,19 @@ static inline unsigned int disk_openers(struct gendisk *disk) return atomic_read(&disk->part0->bd_openers); } +/** + * disk_has_partscan - return %true if partition scanning is enabled on a disk + * @disk: disk to check + * + * Returns %true if partitions scanning is enabled for @disk, or %false if + * partition scanning is disabled either permanently or temporarily. + */ +static inline bool disk_has_partscan(struct gendisk *disk) +{ + return !(disk->flags & (GENHD_FL_NO_PART | GENHD_FL_HIDDEN)) && + !test_bit(GD_SUPPRESS_PART_SCAN, &disk->state); +} + /* * The gendisk is refcounted by the part0 block_device, and the bd_device * therein is also used for device model presentation in sysfs. -- cgit v1.2.3