From: Christoph Hellwig <hch@lst.de>
Date: Fri, 15 Apr 2022 06:52:42 +0200
Subject: [PATCH] block: add a bdev_nonrot helper
Git-commit: 10f0d2a517796b8f6dc04fb0cc3e49003ae6b0bc
Patch-mainline: v5.19-rc1
References: jsc#PED-1183
Add a helper to check the nonrot flag based on the block_device instead
of having to poke into the block layer internal request_queue.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: David Sterba <dsterba@suse.com> [btrfs]
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-12-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
block/ioctl.c | 2 +-
drivers/block/loop.c | 2 +-
drivers/md/dm-table.c | 4 +---
drivers/md/md.c | 3 +--
drivers/md/raid1.c | 2 +-
drivers/md/raid10.c | 2 +-
drivers/md/raid5.c | 2 +-
drivers/target/target_core_file.c | 3 +--
drivers/target/target_core_iblock.c | 2 +-
fs/btrfs/volumes.c | 4 ++--
fs/ext4/mballoc.c | 2 +-
include/linux/blkdev.h | 5 +++++
mm/swapfile.c | 4 ++--
13 files changed, 19 insertions(+), 18 deletions(-)
diff --git a/block/ioctl.c b/block/ioctl.c
index f8703db99c73..19c32b763451 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -489,7 +489,7 @@ static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode,
queue_max_sectors(bdev_get_queue(bdev)));
return put_ushort(argp, max_sectors);
case BLKROTATIONAL:
- return put_ushort(argp, !blk_queue_nonrot(bdev_get_queue(bdev)));
+ return put_ushort(argp, !bdev_nonrot(bdev));
case BLKRASET:
case BLKFRASET:
if(!capable(CAP_SYS_ADMIN))
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index a58595f5ee2c..8d800d46e498 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -903,7 +903,7 @@ static void loop_update_rotational(struct loop_device *lo)
/* not all filesystems (e.g. tmpfs) have a sb->s_bdev */
if (file_bdev)
- nonrot = blk_queue_nonrot(bdev_get_queue(file_bdev));
+ nonrot = bdev_nonrot(file_bdev);
if (nonrot)
blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 03541cfc2317..5e38d0dd009d 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1820,9 +1820,7 @@ static int device_dax_write_cache_enabled(struct dm_target *ti,
static int device_is_rotational(struct dm_target *ti, struct dm_dev *dev,
sector_t start, sector_t len, void *data)
{
- struct request_queue *q = bdev_get_queue(dev->bdev);
-
- return !blk_queue_nonrot(q);
+ return !bdev_nonrot(dev->bdev);
}
static int device_is_not_random(struct dm_target *ti, struct dm_dev *dev,
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 309b3af906ad..19636c2f2cda 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5991,8 +5991,7 @@ int md_run(struct mddev *mddev)
bool nonrot = true;
rdev_for_each(rdev, mddev) {
- if (rdev->raid_disk >= 0 &&
- !blk_queue_nonrot(bdev_get_queue(rdev->bdev))) {
+ if (rdev->raid_disk >= 0 && !bdev_nonrot(rdev->bdev)) {
nonrot = false;
break;
}
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index d785c3169426..b7b21a4793d4 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -708,7 +708,7 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect
/* At least two disks to choose from so failfast is OK */
set_bit(R1BIO_FailFast, &r1_bio->state);
- nonrot = blk_queue_nonrot(bdev_get_queue(rdev->bdev));
+ nonrot = bdev_nonrot(rdev->bdev);
has_nonrot_disk |= nonrot;
pending = atomic_read(&rdev->nr_pending);
dist = abs(this_sector - conf->mirrors[disk].head_position);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index ee2438c0e55e..0987916066f2 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -803,7 +803,7 @@ static struct md_rdev *read_balance(struct r10conf *conf,
if (!do_balance)
break;
- nonrot = blk_queue_nonrot(bdev_get_queue(rdev->bdev));
+ nonrot = bdev_nonrot(rdev->bdev);
has_nonrot_disk |= nonrot;
pending = atomic_read(&rdev->nr_pending);
if (min_pending > pending && nonrot) {
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 351d341a1ffa..0bbae0e63866 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -7242,7 +7242,7 @@ static struct r5conf *setup_conf(struct mddev *mddev)
rdev_for_each(rdev, mddev) {
if (test_bit(Journal, &rdev->flags))
continue;
- if (blk_queue_nonrot(bdev_get_queue(rdev->bdev))) {
+ if (bdev_nonrot(rdev->bdev)) {
conf->batch_bio_dispatch = false;
break;
}
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 8d191fdc3321..b6ba582b0677 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -135,7 +135,6 @@ static int fd_configure_device(struct se_device *dev)
inode = file->f_mapping->host;
if (S_ISBLK(inode->i_mode)) {
struct block_device *bdev = I_BDEV(inode);
- struct request_queue *q = bdev_get_queue(bdev);
unsigned long long dev_size;
fd_dev->fd_block_size = bdev_logical_block_size(bdev);
@@ -160,7 +159,7 @@ static int fd_configure_device(struct se_device *dev)
*/
dev->dev_attrib.max_write_same_len = 0xFFFF;
- if (blk_queue_nonrot(q))
+ if (bdev_nonrot(bdev))
dev->dev_attrib.is_nonrot = 1;
} else {
if (!(fd_dev->fbd_flags & FBDF_HAS_SIZE)) {
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index b886ce1770bf..b41ee5c3b5b8 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -133,7 +133,7 @@ static int iblock_configure_device(struct se_device *dev)
else
dev->dev_attrib.max_write_same_len = 0xFFFF;
- if (blk_queue_nonrot(q))
+ if (bdev_nonrot(bd))
dev->dev_attrib.is_nonrot = 1;
bi = bdev_get_integrity(bd);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 678504c9055a..b6b00338037c 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -642,8 +642,7 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
set_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state);
}
- q = bdev_get_queue(bdev);
- if (!blk_queue_nonrot(q))
+ if (!bdev_nonrot(bdev))
fs_devices->rotating = true;
device->bdev = bdev;
@@ -2705,7 +2705,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
atomic64_add(device->total_bytes, &fs_info->free_chunk_space);
- if (!blk_queue_nonrot(q))
+ if (!bdev_nonrot(bdev))
fs_devices->rotating = true;
orig_super_total_bytes = btrfs_super_total_bytes(fs_info->super_copy);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 252c168454c7..c3668c977cd9 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3498,7 +3498,7 @@ int ext4_mb_init(struct super_block *sb)
spin_lock_init(&lg->lg_prealloc_lock);
}
- if (blk_queue_nonrot(bdev_get_queue(sb->s_bdev)))
+ if (bdev_nonrot(sb->s_bdev))
sbi->s_mb_max_linear_groups = 0;
else
sbi->s_mb_max_linear_groups = MB_DEFAULT_LINEAR_LIMIT;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 60d016138997..3a9578e14a6b 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1326,6 +1326,11 @@ static inline unsigned int bdev_write_zeroes_sectors(struct block_device *bdev)
return 0;
}
+static inline bool bdev_nonrot(struct block_device *bdev)
+{
+ return blk_queue_nonrot(bdev_get_queue(bdev));
+}
+
static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
{
struct request_queue *q = bdev_get_queue(bdev);
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 4c7537162af5..d5ab7ec4d92c 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2466,7 +2466,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
if (p->flags & SWP_CONTINUED)
free_swap_count_continuations(p);
- if (!p->bdev || !blk_queue_nonrot(bdev_get_queue(p->bdev)))
+ if (!p->bdev || !bdev_nonrot(p->bdev))
atomic_dec(&nr_rotate_swap);
mutex_lock(&swapon_mutex);
@@ -3071,7 +3071,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
if (p->bdev && p->bdev->bd_disk->fops->rw_page)
p->flags |= SWP_SYNCHRONOUS_IO;
- if (p->bdev && blk_queue_nonrot(bdev_get_queue(p->bdev))) {
+ if (p->bdev && bdev_nonrot(p->bdev)) {
int cpu;
unsigned long ci, nr_cluster;
--
2.35.3