From: Naohiro Aota <naohiro.aota@wdc.com>
Date: Mon, 22 Aug 2022 06:07:01 +0000 (+0900)
Subject: block: add bdev_max_segments() helper
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1815305d81996c8f892669321ae23ab2ba3e0c4b;p=linux.git

block: add bdev_max_segments() helper

commit 65ea1b66482f415d51cd46515b02477257330339 upstream

Add bdev_max_segments() like other queue parameters.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 2f4ba6e345d55..67344dfe07a7c 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1393,6 +1393,11 @@ bdev_max_zone_append_sectors(struct block_device *bdev)
 	return queue_max_zone_append_sectors(bdev_get_queue(bdev));
 }
 
+static inline unsigned int bdev_max_segments(struct block_device *bdev)
+{
+	return queue_max_segments(bdev_get_queue(bdev));
+}
+
 static inline unsigned queue_logical_block_size(const struct request_queue *q)
 {
 	int retval = 512;