From 74d46992e0d9dee7f1f376de0d56d31614c8a17a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 23 Aug 2017 19:10:32 +0200 Subject: block: replace bi_bdev with a gendisk pointer and partitions index This way we don't need a block_device structure to submit I/O. The block_device has different life time rules from the gendisk and request_queue and is usually only available when the block device node is open. Other callers need to explicitly create one (e.g. the lightnvm passthrough code, or the new nvme multipathing code). For the actual I/O path all that we need is the gendisk, which exists once per block device. But given that the block layer also does partition remapping we additionally need a partition index, which is used for said remapping in generic_make_request. Note that all the block drivers generally want request_queue or sometimes the gendisk, so this removes a layer of indirection all over the stack. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- fs/exofs/ore.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/exofs') diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c index 8bb72807e70d..3c6a9c156b7a 100644 --- a/fs/exofs/ore.c +++ b/fs/exofs/ore.c @@ -869,7 +869,7 @@ static int _write_mirror(struct ore_io_state *ios, int cur_comp) goto out; } - bio->bi_bdev = NULL; + bio->bi_disk = NULL; bio->bi_next = NULL; per_dev->offset = master_dev->offset; per_dev->length = master_dev->length; -- cgit v1.2.3-58-ga151