linux-kernel - [PATCH] block: Remove unused blk_limits_io

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Message-ID: <20240920004817.676216-1-linux@treblig.org>
Date: Fri, 20 Sep 2024 01:48:17 +0100
From: linux@...blig.org
To: axboe@...nel.dk,
	hch@....de
Cc: linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] block: Remove unused blk_limits_io_{min,opt}

From: "Dr. David Alan Gilbert" <linux@...blig.org>

blk_limits_io_min and blk_limits_io_opt are unused since the
recent commit
  0a94a469a4f0 ("dm: stop using blk_limits_io_{min,opt}")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 block/blk-settings.c   | 42 ------------------------------------------
 include/linux/blkdev.h |  2 --
 2 files changed, 44 deletions(-)

diff --git a/block/blk-settings.c b/block/blk-settings.c
index cd8a8eabc9a5..a446654ddee5 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -437,48 +437,6 @@ int queue_limits_set(struct request_queue *q, struct queue_limits *lim)
 }
 EXPORT_SYMBOL_GPL(queue_limits_set);
 
-/**
- * blk_limits_io_min - set minimum request size for a device
- * @limits: the queue limits
- * @min:  smallest I/O size in bytes
- *
- * Description:
- *   Some devices have an internal block size bigger than the reported
- *   hardware sector size.  This function can be used to signal the
- *   smallest I/O the device can perform without incurring a performance
- *   penalty.
- */
-void blk_limits_io_min(struct queue_limits *limits, unsigned int min)
-{
-	limits->io_min = min;
-
-	if (limits->io_min < limits->logical_block_size)
-		limits->io_min = limits->logical_block_size;
-
-	if (limits->io_min < limits->physical_block_size)
-		limits->io_min = limits->physical_block_size;
-}
-EXPORT_SYMBOL(blk_limits_io_min);
-
-/**
- * blk_limits_io_opt - set optimal request size for a device
- * @limits: the queue limits
- * @opt:  smallest I/O size in bytes
- *
- * Description:
- *   Storage devices may report an optimal I/O size, which is the
- *   device's preferred unit for sustained I/O.  This is rarely reported
- *   for disk drives.  For RAID arrays it is usually the stripe width or
- *   the internal track size.  A properly aligned multiple of
- *   optimal_io_size is the preferred request size for workloads where
- *   sustained throughput is desired.
- */
-void blk_limits_io_opt(struct queue_limits *limits, unsigned int opt)
-{
-	limits->io_opt = opt;
-}
-EXPORT_SYMBOL(blk_limits_io_opt);
-
 static int queue_limit_alignment_offset(const struct queue_limits *lim,
 		sector_t sector)
 {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 643c9020a35a..50c3b959da28 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -968,8 +968,6 @@ static inline void blk_queue_disable_write_zeroes(struct request_queue *q)
 /*
  * Access functions for manipulating queue properties
  */
-extern void blk_limits_io_min(struct queue_limits *limits, unsigned int min);
-extern void blk_limits_io_opt(struct queue_limits *limits, unsigned int opt);
 extern void blk_set_queue_depth(struct request_queue *q, unsigned int depth);
 extern void blk_set_stacking_limits(struct queue_limits *lim);
 extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
-- 
2.46.1