[PATCH 3/5] block: add a queue_has_disk helper
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STALE1820d
LANDED
From: Christoph Hellwig <hch@lst.de>
Date: 2021-08-09 14:21:09
Also in:
cgroups, linux-fsdevel, linux-mm
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
Landed in mainline as 1008162b2782 on 2021-08-09.
Add a helper to check if a gendisk is associated with a request_queue. Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/blkdev.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index ac3642c88a4d..96f3d9617cd8 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h@@ -664,6 +664,7 @@ extern void blk_clear_pm_only(struct request_queue *q); dma_map_page_attrs(dev, (bv)->bv_page, (bv)->bv_offset, (bv)->bv_len, \ (dir), (attrs)) +#define queue_has_disk(q) ((q)->kobj.parent != NULL) #define queue_to_disk(q) (dev_to_disk(kobj_to_dev((q)->kobj.parent))) static inline bool queue_is_mq(struct request_queue *q)
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2.30.2