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Petersen" Cc: Damien Le Moal , Niklas Cassel , Takashi Sakamoto , Sathya Prakash , Sreekanth Reddy , Suganath Prabu Subramani , "Juergen E. Fischer" , Xiang Chen , HighPoint Linux Team , Tyrel Datwyler , Brian King , Lee Duncan , Chris Leech , Mike Christie , John Garry , Jason Yan , Kashyap Desai , Sumit Saxena , Shivasharan S , Chandrakanth patil , Jack Wang , Nilesh Javali , GR-QLogic-Storage-Upstream@marvell.com, Greg Kroah-Hartman , Alim Akhtar , Avri Altman , Bart Van Assche , Krzysztof Kozlowski , Alan Stern , linux-block@vger.kernel.org, linux-ide@vger.kernel.org, linux1394-devel@lists.sourceforge.net, MPT-FusionLinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, megaraidlinux.pdl@broadcom.com, mpi3mr-linuxdrv.pdl@broadcom.com, linux-samsung-soc@vger.kernel.org, linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net Subject: [PATCH 23/23] block: remove now unused queue limits helpers Date: Mon, 25 Mar 2024 07:54:48 +0800 Message-Id: <20240324235448.2039074-24-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240324235448.2039074-1-hch@lst.de> References: <20240324235448.2039074-1-hch@lst.de> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Bart Van Assche Reviewed-by: John Garry --- block/blk-settings.c | 245 --------------------------------- drivers/s390/block/dasd_eckd.c | 6 +- include/linux/blkdev.h | 13 -- include/linux/mmc/host.h | 4 +- 4 files changed, 5 insertions(+), 263 deletions(-) diff --git a/block/blk-settings.c b/block/blk-settings.c index cdbaef159c4bc3..57cd1660815ec2 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -283,72 +283,6 @@ int queue_limits_set(struct request_queue *q, struct queue_limits *lim) } EXPORT_SYMBOL_GPL(queue_limits_set); -/** - * blk_queue_bounce_limit - set bounce buffer limit for queue - * @q: the request queue for the device - * @bounce: bounce limit to enforce - * - * Description: - * Force bouncing for ISA DMA ranges or highmem. - * - * DEPRECATED, don't use in new code. - **/ -void blk_queue_bounce_limit(struct request_queue *q, enum blk_bounce bounce) -{ - q->limits.bounce = bounce; -} -EXPORT_SYMBOL(blk_queue_bounce_limit); - -/** - * blk_queue_max_hw_sectors - set max sectors for a request for this queue - * @q: the request queue for the device - * @max_hw_sectors: max hardware sectors in the usual 512b unit - * - * Description: - * Enables a low level driver to set a hard upper limit, - * max_hw_sectors, on the size of requests. max_hw_sectors is set by - * the device driver based upon the capabilities of the I/O - * controller. - * - * max_dev_sectors is a hard limit imposed by the storage device for - * READ/WRITE requests. It is set by the disk driver. - * - * max_sectors is a soft limit imposed by the block layer for - * filesystem type requests. This value can be overridden on a - * per-device basis in /sys/block//queue/max_sectors_kb. - * The soft limit can not exceed max_hw_sectors. - **/ -void blk_queue_max_hw_sectors(struct request_queue *q, unsigned int max_hw_sectors) -{ - struct queue_limits *limits = &q->limits; - unsigned int max_sectors; - - if ((max_hw_sectors << 9) < PAGE_SIZE) { - max_hw_sectors = 1 << (PAGE_SHIFT - 9); - pr_info("%s: set to minimum %u\n", __func__, max_hw_sectors); - } - - max_hw_sectors = round_down(max_hw_sectors, - limits->logical_block_size >> SECTOR_SHIFT); - limits->max_hw_sectors = max_hw_sectors; - - max_sectors = min_not_zero(max_hw_sectors, limits->max_dev_sectors); - - if (limits->max_user_sectors) - max_sectors = min(max_sectors, limits->max_user_sectors); - else - max_sectors = min(max_sectors, BLK_DEF_MAX_SECTORS_CAP); - - max_sectors = round_down(max_sectors, - limits->logical_block_size >> SECTOR_SHIFT); - limits->max_sectors = max_sectors; - - if (!q->disk) - return; - q->disk->bdi->io_pages = max_sectors >> (PAGE_SHIFT - 9); -} -EXPORT_SYMBOL(blk_queue_max_hw_sectors); - /** * blk_queue_chunk_sectors - set size of the chunk for this queue * @q: the request queue for the device @@ -435,65 +369,6 @@ void blk_queue_max_zone_append_sectors(struct request_queue *q, } EXPORT_SYMBOL_GPL(blk_queue_max_zone_append_sectors); -/** - * blk_queue_max_segments - set max hw segments for a request for this queue - * @q: the request queue for the device - * @max_segments: max number of segments - * - * Description: - * Enables a low level driver to set an upper limit on the number of - * hw data segments in a request. - **/ -void blk_queue_max_segments(struct request_queue *q, unsigned short max_segments) -{ - if (!max_segments) { - max_segments = 1; - pr_info("%s: set to minimum %u\n", __func__, max_segments); - } - - q->limits.max_segments = max_segments; -} -EXPORT_SYMBOL(blk_queue_max_segments); - -/** - * blk_queue_max_discard_segments - set max segments for discard requests - * @q: the request queue for the device - * @max_segments: max number of segments - * - * Description: - * Enables a low level driver to set an upper limit on the number of - * segments in a discard request. - **/ -void blk_queue_max_discard_segments(struct request_queue *q, - unsigned short max_segments) -{ - q->limits.max_discard_segments = max_segments; -} -EXPORT_SYMBOL_GPL(blk_queue_max_discard_segments); - -/** - * blk_queue_max_segment_size - set max segment size for blk_rq_map_sg - * @q: the request queue for the device - * @max_size: max size of segment in bytes - * - * Description: - * Enables a low level driver to set an upper limit on the size of a - * coalesced segment - **/ -void blk_queue_max_segment_size(struct request_queue *q, unsigned int max_size) -{ - if (max_size < PAGE_SIZE) { - max_size = PAGE_SIZE; - pr_info("%s: set to minimum %u\n", __func__, max_size); - } - - /* see blk_queue_virt_boundary() for the explanation */ - WARN_ON_ONCE(q->limits.virt_boundary_mask); - - q->limits.max_segment_size = max_size; -} -EXPORT_SYMBOL(blk_queue_max_segment_size); - /** * blk_queue_logical_block_size - set logical block size for the queue * @q: the request queue for the device @@ -660,29 +535,6 @@ void blk_limits_io_opt(struct queue_limits *limits, unsigned int opt) } EXPORT_SYMBOL(blk_limits_io_opt); -/** - * blk_queue_io_opt - set optimal request size for the queue - * @q: the request queue for the device - * @opt: optimal request 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_queue_io_opt(struct request_queue *q, unsigned int opt) -{ - blk_limits_io_opt(&q->limits, opt); - if (!q->disk) - return; - q->disk->bdi->ra_pages = - max(queue_io_opt(q) * 2 / PAGE_SIZE, VM_READAHEAD_PAGES); -} -EXPORT_SYMBOL(blk_queue_io_opt); - static int queue_limit_alignment_offset(const struct queue_limits *lim, sector_t sector) { @@ -932,81 +784,6 @@ void blk_queue_update_dma_pad(struct request_queue *q, unsigned int mask) } EXPORT_SYMBOL(blk_queue_update_dma_pad); -/** - * blk_queue_segment_boundary - set boundary rules for segment merging - * @q: the request queue for the device - * @mask: the memory boundary mask - **/ -void blk_queue_segment_boundary(struct request_queue *q, unsigned long mask) -{ - if (mask < PAGE_SIZE - 1) { - mask = PAGE_SIZE - 1; - pr_info("%s: set to minimum %lx\n", __func__, mask); - } - - q->limits.seg_boundary_mask = mask; -} -EXPORT_SYMBOL(blk_queue_segment_boundary); - -/** - * blk_queue_virt_boundary - set boundary rules for bio merging - * @q: the request queue for the device - * @mask: the memory boundary mask - **/ -void blk_queue_virt_boundary(struct request_queue *q, unsigned long mask) -{ - q->limits.virt_boundary_mask = mask; - - /* - * Devices that require a virtual boundary do not support scatter/gather - * I/O natively, but instead require a descriptor list entry for each - * page (which might not be idential to the Linux PAGE_SIZE). Because - * of that they are not limited by our notion of "segment size". - */ - if (mask) - q->limits.max_segment_size = UINT_MAX; -} -EXPORT_SYMBOL(blk_queue_virt_boundary); - -/** - * blk_queue_dma_alignment - set dma length and memory alignment - * @q: the request queue for the device - * @mask: alignment mask - * - * description: - * set required memory and length alignment for direct dma transactions. - * this is used when building direct io requests for the queue. - * - **/ -void blk_queue_dma_alignment(struct request_queue *q, int mask) -{ - q->limits.dma_alignment = mask; -} -EXPORT_SYMBOL(blk_queue_dma_alignment); - -/** - * blk_queue_update_dma_alignment - update dma length and memory alignment - * @q: the request queue for the device - * @mask: alignment mask - * - * description: - * update required memory and length alignment for direct dma transactions. - * If the requested alignment is larger than the current alignment, then - * the current queue alignment is updated to the new value, otherwise it - * is left alone. The design of this is to allow multiple objects - * (driver, device, transport etc) to set their respective - * alignments without having them interfere. - * - **/ -void blk_queue_update_dma_alignment(struct request_queue *q, int mask) -{ - BUG_ON(mask > PAGE_SIZE); - - if (mask > q->limits.dma_alignment) - q->limits.dma_alignment = mask; -} -EXPORT_SYMBOL(blk_queue_update_dma_alignment); - /** * blk_set_queue_depth - tell the block layer about the device queue depth * @q: the request queue for the device @@ -1060,28 +837,6 @@ void blk_queue_required_elevator_features(struct request_queue *q, } EXPORT_SYMBOL_GPL(blk_queue_required_elevator_features); -/** - * blk_queue_can_use_dma_map_merging - configure queue for merging segments. - * @q: the request queue for the device - * @dev: the device pointer for dma - * - * Tell the block layer about merging the segments by dma map of @q. - */ -bool blk_queue_can_use_dma_map_merging(struct request_queue *q, - struct device *dev) -{ - unsigned long boundary = dma_get_merge_boundary(dev); - - if (!boundary) - return false; - - /* No need to update max_segment_size. see blk_queue_virt_boundary() */ - blk_queue_virt_boundary(q, boundary); - - return true; -} -EXPORT_SYMBOL_GPL(blk_queue_can_use_dma_map_merging); - /** * disk_set_zoned - inidicate a zoned device * @disk: gendisk to configure diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 180a008d38eaaf..2f16f543079b4f 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -4561,9 +4561,9 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( len_to_track_end = 0; /* * A tidaw can address 4k of memory, but must not cross page boundaries - * We can let the block layer handle this by setting - * blk_queue_segment_boundary to page boundaries and - * blk_max_segment_size to page size when setting up the request queue. + * We can let the block layer handle this by setting seg_boundary_mask + * to page boundaries and max_segment_size to page size when setting up + * the request queue. * For write requests, a TIDAW must not cross track boundaries, because * we have to set the CBC flag on the last tidaw for each track. */ diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index c3e8f7cf96be9e..7a1e96c5bb1106 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -895,15 +895,9 @@ int queue_limits_set(struct request_queue *q, struct queue_limits *lim); /* * Access functions for manipulating queue properties */ -void blk_queue_bounce_limit(struct request_queue *q, enum blk_bounce limit); -extern void blk_queue_max_hw_sectors(struct request_queue *, unsigned int); extern void blk_queue_chunk_sectors(struct request_queue *, unsigned int); -extern void blk_queue_max_segments(struct request_queue *, unsigned short); -extern void blk_queue_max_discard_segments(struct request_queue *, - unsigned short); void blk_queue_max_secure_erase_sectors(struct request_queue *q, unsigned int max_sectors); -extern void blk_queue_max_segment_size(struct request_queue *, unsigned int); extern void blk_queue_max_discard_sectors(struct request_queue *q, unsigned int max_discard_sectors); extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q, @@ -920,7 +914,6 @@ void disk_update_readahead(struct gendisk *disk); extern void blk_limits_io_min(struct queue_limits *limits, unsigned int min); extern void blk_queue_io_min(struct request_queue *q, unsigned int min); extern void blk_limits_io_opt(struct queue_limits *limits, unsigned int opt); -extern void blk_queue_io_opt(struct request_queue *q, 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, @@ -928,10 +921,6 @@ extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b, void queue_limits_stack_bdev(struct queue_limits *t, struct block_device *bdev, sector_t offset, const char *pfx); extern void blk_queue_update_dma_pad(struct request_queue *, unsigned int); -extern void blk_queue_segment_boundary(struct request_queue *, unsigned long); -extern void blk_queue_virt_boundary(struct request_queue *, unsigned long); -extern void blk_queue_dma_alignment(struct request_queue *, int); -extern void blk_queue_update_dma_alignment(struct request_queue *, int); extern void blk_queue_rq_timeout(struct request_queue *, unsigned int); extern void blk_queue_write_cache(struct request_queue *q, bool enabled, bool fua); @@ -948,8 +937,6 @@ void disk_set_independent_access_ranges(struct gendisk *disk, extern void blk_queue_required_elevator_features(struct request_queue *q, unsigned int features); -extern bool blk_queue_can_use_dma_map_merging(struct request_queue *q, - struct device *dev); bool __must_check blk_get_queue(struct request_queue *); extern void blk_put_queue(struct request_queue *); diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 5894bf912f7bdb..88c6a76042ee73 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -433,8 +433,8 @@ struct mmc_host { mmc_pm_flag_t pm_caps; /* supported pm features */ /* host specific block data */ - unsigned int max_seg_size; /* see blk_queue_max_segment_size */ - unsigned short max_segs; /* see blk_queue_max_segments */ + unsigned int max_seg_size; /* lim->max_segment_size */ + unsigned short max_segs; /* lim->max_segments */ unsigned short unused; unsigned int max_req_size; /* maximum number of bytes in one req */ unsigned int max_blk_size; /* maximum size of one mmc block */