linux-kernel - [PATCH 5.15 010/136] block: add bdev_max

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Date:   Mon, 29 Aug 2022 12:57:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Johannes Thumshirn <johannes.thumshirn@....com>,
        Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>,
        Naohiro Aota <naohiro.aota@....com>,
        David Sterba <dsterba@...e.com>
Subject: [PATCH 5.15 010/136] block: add bdev_max_segments() helper

From: Naohiro Aota <naohiro.aota@....com>

commit 65ea1b66482f415d51cd46515b02477257330339 upstream

Add bdev_max_segments() like other queue parameters.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@....com>
Reviewed-by: Jens Axboe <axboe@...nel.dk>
Reviewed-by: Christoph Hellwig <hch@....de>
Signed-off-by: Naohiro Aota <naohiro.aota@....com>
Signed-off-by: David Sterba <dsterba@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/linux/blkdev.h |    5 +++++
 1 file changed, 5 insertions(+)

--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1393,6 +1393,11 @@ bdev_max_zone_append_sectors(struct bloc
 	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;