diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-05-02 15:00:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-25 16:22:55 +0200 |
| commit | d6b6dfff6cda4cdacc514d10073449703a2fdf3b (patch) | |
| tree | 9f159c817b97dd3b6b02cddeabe343deecea8935 /include/linux/blkdev.h | |
| parent | fe4549b1d6aca7cffb4ab5010f7918263a6b1058 (diff) | |
block: add a disk_has_partscan helper
commit 140ce28dd3bee8e53acc27f123ae474d69ef66f0 upstream.
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 <hch@lst.de>
Link: https://lore.kernel.org/r/20240502130033.1958492-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 5b6e86b2c37a..a7b65d4ab616 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -229,6 +229,19 @@ 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. |