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block: pass a gendisk to blk_queue_update_readahead

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.. and rename the function to disk_update_readahead.  This is in
preparation for moving the BDI from the request_queue to the gendisk.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20210809141744.1203023-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-08-09 16:17:41 +02:00 committed by Jens Axboe
parent 5ed964f8e5
commit 471aa704db
6 changed files with 10 additions and 8 deletions
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8
block/blk-settings.c
View file

@ -380,8 +380,10 @@ void blk_queue_alignment_offset(struct request_queue *q, unsigned int offset)
}
EXPORT_SYMBOL(blk_queue_alignment_offset);
void blk_queue_update_readahead(struct request_queue *q)
void disk_update_readahead(struct gendisk *disk)
{
struct request_queue *q = disk->queue;
/*
* For read-ahead of large files to be effective, we need to read ahead
* at least twice the optimal I/O size.
@ -391,7 +393,7 @@ void blk_queue_update_readahead(struct request_queue *q)
q->backing_dev_info->io_pages =
queue_max_sectors(q) >> (PAGE_SHIFT - 9);
}
EXPORT_SYMBOL_GPL(blk_queue_update_readahead);
EXPORT_SYMBOL_GPL(disk_update_readahead);
/**
* blk_limits_io_min - set minimum request size for a device
@ -665,7 +667,7 @@ void disk_stack_limits(struct gendisk *disk, struct block_device *bdev,
pr_notice("%s: Warning: Device %pg is misaligned\n",
disk->disk_name, bdev);
blk_queue_update_readahead(disk->queue);
disk_update_readahead(disk);
}
EXPORT_SYMBOL(disk_stack_limits);

2
block/blk-sysfs.c
View file

@ -866,7 +866,7 @@ int blk_register_queue(struct gendisk *disk)
"%s is registering an already registered queue\n",
kobject_name(&dev->kobj));
blk_queue_update_readahead(q);
disk_update_readahead(disk);
ret = blk_trace_init_sysfs(dev);
if (ret)

2
drivers/block/drbd/drbd_nl.c
View file

@ -1364,7 +1364,7 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
if (b) {
blk_stack_limits(&q->limits, &b->limits, 0);
blk_queue_update_readahead(q);
disk_update_readahead(device->vdisk);
}
fixup_discard_if_not_supported(q);
fixup_write_zeroes(device, q);

2
drivers/md/dm-table.c
View file

@ -2076,7 +2076,7 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
}
dm_update_keyslot_manager(q, t);
blk_queue_update_readahead(q);
disk_update_readahead(t->md->disk);
return 0;
}

2
drivers/nvme/host/core.c
View file

@ -1890,7 +1890,7 @@ static int nvme_update_ns_info(struct nvme_ns *ns, struct nvme_id_ns *id)
nvme_update_disk_info(ns->head->disk, ns, id);
blk_stack_limits(&ns->head->disk->queue->limits,
&ns->queue->limits, 0);
blk_queue_update_readahead(ns->head->disk->queue);
disk_update_readahead(ns->head->disk);
blk_mq_unfreeze_queue(ns->head->disk->queue);
}
return 0;

2
include/linux/blkdev.h
View file

@ -1139,7 +1139,7 @@ void blk_queue_zone_write_granularity(struct request_queue *q,
unsigned int size);
extern void blk_queue_alignment_offset(struct request_queue *q,
unsigned int alignment);
void blk_queue_update_readahead(struct request_queue *q);
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);