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Message-Id: <20200626080158.1998621-6-hch@lst.de>
Date: Fri, 26 Jun 2020 10:01:56 +0200
From: Christoph Hellwig <hch@....de>
To: axboe@...nel.dk
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/7] block: remove the bd_queue field from struct block_device
Just use bd_disk->queue instead.
Signed-off-by: Christoph Hellwig <hch@....de>
---
drivers/dax/super.c | 2 +-
drivers/md/md.c | 2 +-
drivers/nvme/target/core.c | 2 +-
fs/block_dev.c | 11 ++++-------
fs/direct-io.c | 4 ++--
fs/xfs/xfs_pwork.c | 2 +-
include/linux/blk_types.h | 1 -
mm/swapfile.c | 2 +-
8 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 8e32345be0f743..f508285263319b 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -59,7 +59,7 @@ EXPORT_SYMBOL(bdev_dax_pgoff);
#if IS_ENABLED(CONFIG_FS_DAX)
struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev)
{
- if (!blk_queue_dax(bdev->bd_queue))
+ if (!blk_queue_dax(bdev->bd_disk->queue))
return NULL;
return dax_get_by_host(bdev->bd_disk->disk_name);
}
diff --git a/drivers/md/md.c b/drivers/md/md.c
index f567f536b529bd..6f13c6d328ba7b 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -199,7 +199,7 @@ static int rdevs_init_serial(struct mddev *mddev)
static int rdev_need_serial(struct md_rdev *rdev)
{
return (rdev && rdev->mddev->bitmap_info.max_write_behind > 0 &&
- rdev->bdev->bd_queue->nr_hw_queues != 1 &&
+ rdev->bdev->bd_disk->queue->nr_hw_queues != 1 &&
test_bit(WriteMostly, &rdev->flags));
}
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 6e2f623e472e9f..6816507fba58a6 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -467,7 +467,7 @@ static int nvmet_p2pmem_ns_enable(struct nvmet_ns *ns)
return -EINVAL;
}
- if (!blk_queue_pci_p2pdma(ns->bdev->bd_queue)) {
+ if (!blk_queue_pci_p2pdma(ns->bdev->bd_disk->queue)) {
pr_err("peer-to-peer DMA is not supported by the driver of %s\n",
ns->device_path);
return -EINVAL;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 06d31e459048ad..68cb08bc1b7a65 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -693,12 +693,12 @@ int bdev_read_page(struct block_device *bdev, sector_t sector,
if (!ops->rw_page || bdev_get_integrity(bdev))
return result;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
REQ_OP_READ);
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@ -729,7 +729,7 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
if (!ops->rw_page || bdev_get_integrity(bdev))
return -EOPNOTSUPP;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
@@ -742,7 +742,7 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
clean_page_buffers(page);
unlock_page(page);
}
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@ -1568,7 +1568,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
if (!bdev->bd_openers) {
first_open = true;
bdev->bd_disk = disk;
- bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
bdev->bd_partno = partno;
@@ -1589,7 +1588,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
disk_put_part(bdev->bd_part);
bdev->bd_part = NULL;
bdev->bd_disk = NULL;
- bdev->bd_queue = NULL;
mutex_unlock(&bdev->bd_mutex);
disk_unblock_events(disk);
put_disk_and_module(disk);
@@ -1666,7 +1664,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
disk_put_part(bdev->bd_part);
bdev->bd_disk = NULL;
bdev->bd_part = NULL;
- bdev->bd_queue = NULL;
if (bdev != bdev->bd_contains)
__blkdev_put(bdev->bd_contains, mode, 1);
bdev->bd_contains = NULL;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 6d5370eac2a8f2..183299892465af 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1387,8 +1387,8 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
* Attempt to prefetch the pieces we likely need later.
*/
prefetch(&bdev->bd_disk->part_tbl);
- prefetch(bdev->bd_queue);
- prefetch((char *)bdev->bd_queue + SMP_CACHE_BYTES);
+ prefetch(bdev->bd_disk->queue);
+ prefetch((char *)bdev->bd_disk->queue + SMP_CACHE_BYTES);
return do_blockdev_direct_IO(iocb, inode, bdev, iter, get_block,
end_io, submit_io, flags);
diff --git a/fs/xfs/xfs_pwork.c b/fs/xfs/xfs_pwork.c
index 4bcc3e61056c8c..b03333f1c84ad0 100644
--- a/fs/xfs/xfs_pwork.c
+++ b/fs/xfs/xfs_pwork.c
@@ -132,5 +132,5 @@ xfs_pwork_guess_datadev_parallelism(
* For now we'll go with the most conservative setting possible,
* which is two threads for an SSD and 1 thread everywhere else.
*/
- return blk_queue_nonrot(btp->bt_bdev->bd_queue) ? 2 : 1;
+ return blk_queue_nonrot(btp->bt_bdev->bd_disk->queue) ? 2 : 1;
}
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index b01cd19bbe8a6e..667cd365fd048b 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -39,7 +39,6 @@ struct block_device {
unsigned bd_part_count;
int bd_invalidated;
struct gendisk * bd_disk;
- struct request_queue * bd_queue;
struct backing_dev_info *bd_bdi;
struct list_head bd_list;
/*
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 987276c557d1f1..6c26916e95fd4a 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2929,7 +2929,7 @@ static int claim_swapfile(struct swap_info_struct *p, struct inode *inode)
* write only restriction. Hence zoned block devices are not
* suitable for swapping. Disallow them here.
*/
- if (blk_queue_is_zoned(p->bdev->bd_queue))
+ if (blk_queue_is_zoned(p->bdev->bd_disk->queue))
return -EINVAL;
p->flags |= SWP_BLKDEV;
} else if (S_ISREG(inode->i_mode)) {
--
2.26.2
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