[RFC PATCH v5 1/4] block: make bio_map_kern() non static
From: SelvaKumar S <hidden>
Date: 2021-02-20 02:02:56
Also in:
dm-devel, linux-fsdevel, linux-nvme, lkml
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
Make bio_map_kern() non static, so that copy offload emulation can use it to add vmalloced memory to bio. Signed-off-by: SelvaKumar S <redacted> Signed-off-by: Chaitanya Kulkarni <kch@kernel.org> --- block/blk-map.c | 2 +- include/linux/blkdev.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/block/blk-map.c b/block/blk-map.c
index 21630dccac62..17381b1643b8 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c@@ -378,7 +378,7 @@ static void bio_map_kern_endio(struct bio *bio) * Map the kernel address into a bio suitable for io to a block * device. Returns an error pointer in case of error. */ -static struct bio *bio_map_kern(struct request_queue *q, void *data, +struct bio *bio_map_kern(struct request_queue *q, void *data, unsigned int len, gfp_t gfp_mask) { unsigned long kaddr = (unsigned long)data;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f94ee3089e01..699ace6b25ff 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h@@ -944,6 +944,8 @@ extern int blk_rq_map_user(struct request_queue *, struct request *, struct rq_map_data *, void __user *, unsigned long, gfp_t); extern int blk_rq_unmap_user(struct bio *); +struct bio *bio_map_kern(struct request_queue *q, void *data, unsigned int len, + gfp_t gfp_mask); extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, unsigned int, gfp_t); extern int blk_rq_map_user_iov(struct request_queue *, struct request *, struct rq_map_data *, const struct iov_iter *,
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2.25.1