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block: Use pointer to backing_dev_info from request_queue 

We will want to have struct backing_dev_info allocated separately from
struct request_queue. As the first step add pointer to backing_dev_info
to request_queue and convert all users touching it. No functional
changes in this patch.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jan Kara 2017-02-02 15:56:50 +01:00 committed by Jens Axboe
parent f44f1ab5a2
commit dc3b17cc8b
33 changed files with 90 additions and 86 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
block/blk-cgroup.c
View File

@ -184,7 +184,7 @@ static struct blkcg_gq *blkg_create(struct blkcg *blkcg,
goto err_free_blkg;
}
wb_congested = wb_congested_get_create(&q->backing_dev_info,
wb_congested = wb_congested_get_create(q->backing_dev_info,
blkcg->css.id,
GFP_NOWAIT | __GFP_NOWARN);
if (!wb_congested) {
@ -469,8 +469,8 @@ static int blkcg_reset_stats(struct cgroup_subsys_state *css,
const char *blkg_dev_name(struct blkcg_gq *blkg)
{
/* some drivers (floppy) instantiate a queue w/o disk registered */
if (blkg->q->backing_dev_info.dev)
return dev_name(blkg->q->backing_dev_info.dev);
if (blkg->q->backing_dev_info->dev)
return dev_name(blkg->q->backing_dev_info->dev);
return NULL;
}
EXPORT_SYMBOL_GPL(blkg_dev_name);

27
block/blk-core.c
View File

@ -75,7 +75,7 @@ static void blk_clear_congested(struct request_list *rl, int sync)
* flip its congestion state for events on other blkcgs.
*/
if (rl == &rl->q->root_rl)
clear_wb_congested(rl->q->backing_dev_info.wb.congested, sync);
clear_wb_congested(rl->q->backing_dev_info->wb.congested, sync);
#endif
}
@ -86,7 +86,7 @@ static void blk_set_congested(struct request_list *rl, int sync)
#else
/* see blk_clear_congested() */
if (rl == &rl->q->root_rl)
set_wb_congested(rl->q->backing_dev_info.wb.congested, sync);
set_wb_congested(rl->q->backing_dev_info->wb.congested, sync);
#endif
}
@ -117,7 +117,7 @@ struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev)
{
struct request_queue *q = bdev_get_queue(bdev);
return &q->backing_dev_info;
return q->backing_dev_info;
}
EXPORT_SYMBOL(blk_get_backing_dev_info);
@ -575,7 +575,7 @@ void blk_cleanup_queue(struct request_queue *q)
blk_flush_integrity();
/* @q won't process any more request, flush async actions */
del_timer_sync(&q->backing_dev_info.laptop_mode_wb_timer);
del_timer_sync(&q->backing_dev_info->laptop_mode_wb_timer);
blk_sync_queue(q);
if (q->mq_ops)
@ -587,7 +587,7 @@ void blk_cleanup_queue(struct request_queue *q)
q->queue_lock = &q->__queue_lock;
spin_unlock_irq(lock);
bdi_unregister(&q->backing_dev_info);
bdi_unregister(q->backing_dev_info);
/* @q is and will stay empty, shutdown and put */
blk_put_queue(q);
@ -728,17 +728,18 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
if (!q->bio_split)
goto fail_id;
q->backing_dev_info.ra_pages =
q->backing_dev_info = &q->_backing_dev_info;
q->backing_dev_info->ra_pages =
(VM_MAX_READAHEAD * 1024) / PAGE_SIZE;
q->backing_dev_info.capabilities = BDI_CAP_CGROUP_WRITEBACK;
q->backing_dev_info.name = "block";
q->backing_dev_info->capabilities = BDI_CAP_CGROUP_WRITEBACK;
q->backing_dev_info->name = "block";
q->node = node_id;
err = bdi_init(&q->backing_dev_info);
err = bdi_init(q->backing_dev_info);
if (err)
goto fail_split;
setup_timer(&q->backing_dev_info.laptop_mode_wb_timer,
setup_timer(&q->backing_dev_info->laptop_mode_wb_timer,
laptop_mode_timer_fn, (unsigned long) q);
setup_timer(&q->timeout, blk_rq_timed_out_timer, (unsigned long) q);
INIT_LIST_HEAD(&q->queue_head);
@ -788,7 +789,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
fail_ref:
percpu_ref_exit(&q->q_usage_counter);
fail_bdi:
bdi_destroy(&q->backing_dev_info);
bdi_destroy(q->backing_dev_info);
fail_split:
bioset_free(q->bio_split);
fail_id:
@ -1182,7 +1183,7 @@ static struct request *__get_request(struct request_list *rl, unsigned int op,
* disturb iosched and blkcg but weird is bettern than dead.
*/
printk_ratelimited(KERN_WARNING "%s: dev %s: request aux data allocation failed, iosched may be disturbed\n",
__func__, dev_name(q->backing_dev_info.dev));
__func__, dev_name(q->backing_dev_info->dev));
rq->rq_flags &= ~RQF_ELVPRIV;
rq->elv.icq = NULL;
@ -2659,7 +2660,7 @@ void blk_finish_request(struct request *req, int error)
BUG_ON(blk_queued_rq(req));
if (unlikely(laptop_mode) && !blk_rq_is_passthrough(req))
laptop_io_completion(&req->q->backing_dev_info);
laptop_io_completion(req->q->backing_dev_info);
blk_delete_timer(req);

4
block/blk-integrity.c
View File

@ -443,10 +443,10 @@ void blk_integrity_revalidate(struct gendisk *disk)
return;
if (bi->profile)
disk->queue->backing_dev_info.capabilities |=
disk->queue->backing_dev_info->capabilities |=
BDI_CAP_STABLE_WRITES;
else
disk->queue->backing_dev_info.capabilities &=
disk->queue->backing_dev_info->capabilities &=
~BDI_CAP_STABLE_WRITES;
}

2
block/blk-settings.c
View File

@ -253,7 +253,7 @@ void blk_queue_max_hw_sectors(struct request_queue *q, unsigned int max_hw_secto
max_sectors = min_not_zero(max_hw_sectors, limits->max_dev_sectors);
max_sectors = min_t(unsigned int, max_sectors, BLK_DEF_MAX_SECTORS);
limits->max_sectors = max_sectors;
q->backing_dev_info.io_pages = max_sectors >> (PAGE_SHIFT - 9);
q->backing_dev_info->io_pages = max_sectors >> (PAGE_SHIFT - 9);
}
EXPORT_SYMBOL(blk_queue_max_hw_sectors);

8
block/blk-sysfs.c
View File

@ -89,7 +89,7 @@ queue_requests_store(struct request_queue *q, const char *page, size_t count)
static ssize_t queue_ra_show(struct request_queue *q, char *page)
{
unsigned long ra_kb = q->backing_dev_info.ra_pages <<
unsigned long ra_kb = q->backing_dev_info->ra_pages <<
(PAGE_SHIFT - 10);
return queue_var_show(ra_kb, (page));
@ -104,7 +104,7 @@ queue_ra_store(struct request_queue *q, const char *page, size_t count)
if (ret < 0)
return ret;
q->backing_dev_info.ra_pages = ra_kb >> (PAGE_SHIFT - 10);
q->backing_dev_info->ra_pages = ra_kb >> (PAGE_SHIFT - 10);
return ret;
}
@ -236,7 +236,7 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
spin_lock_irq(q->queue_lock);
q->limits.max_sectors = max_sectors_kb << 1;
q->backing_dev_info.io_pages = max_sectors_kb >> (PAGE_SHIFT - 10);
q->backing_dev_info->io_pages = max_sectors_kb >> (PAGE_SHIFT - 10);
spin_unlock_irq(q->queue_lock);
return ret;
@ -799,7 +799,7 @@ static void blk_release_queue(struct kobject *kobj)
container_of(kobj, struct request_queue, kobj);
wbt_exit(q);
bdi_exit(&q->backing_dev_info);
bdi_exit(q->backing_dev_info);
blkcg_exit_queue(q);
if (q->elevator) {

8
block/blk-wbt.c
View File

@ -96,7 +96,7 @@ static void wb_timestamp(struct rq_wb *rwb, unsigned long *var)
*/
static bool wb_recent_wait(struct rq_wb *rwb)
{
struct bdi_writeback *wb = &rwb->queue->backing_dev_info.wb;
struct bdi_writeback *wb = &rwb->queue->backing_dev_info->wb;
return time_before(jiffies, wb->dirty_sleep + HZ);
}
@ -279,7 +279,7 @@ enum {
static int __latency_exceeded(struct rq_wb *rwb, struct blk_rq_stat *stat)
{
struct backing_dev_info *bdi = &rwb->queue->backing_dev_info;
struct backing_dev_info *bdi = rwb->queue->backing_dev_info;
u64 thislat;
/*
@ -339,7 +339,7 @@ static int latency_exceeded(struct rq_wb *rwb)
static void rwb_trace_step(struct rq_wb *rwb, const char *msg)
{
struct backing_dev_info *bdi = &rwb->queue->backing_dev_info;
struct backing_dev_info *bdi = rwb->queue->backing_dev_info;
trace_wbt_step(bdi, msg, rwb->scale_step, rwb->cur_win_nsec,
rwb->wb_background, rwb->wb_normal, rwb->wb_max);
@ -423,7 +423,7 @@ static void wb_timer_fn(unsigned long data)
status = latency_exceeded(rwb);
trace_wbt_timer(&rwb->queue->backing_dev_info, status, rwb->scale_step,
trace_wbt_timer(rwb->queue->backing_dev_info, status, rwb->scale_step,
inflight);
/*

2
block/genhd.c
View File

@ -613,7 +613,7 @@ void device_add_disk(struct device *parent, struct gendisk *disk)
disk_alloc_events(disk);
/* Register BDI before referencing it from bdev */
bdi = &disk->queue->backing_dev_info;
bdi = disk->queue->backing_dev_info;
bdi_register_owner(bdi, disk_to_dev(disk));
blk_register_region(disk_devt(disk), disk->minors, NULL,

4
drivers/block/aoe/aoeblk.c
View File

@ -396,8 +396,8 @@ aoeblk_gdalloc(void *vp)
WARN_ON(d->gd);
WARN_ON(d->flags & DEVFL_UP);
blk_queue_max_hw_sectors(q, BLK_DEF_MAX_SECTORS);
q->backing_dev_info.name = "aoe";
q->backing_dev_info.ra_pages = READ_AHEAD / PAGE_SIZE;
q->backing_dev_info->name = "aoe";
q->backing_dev_info->ra_pages = READ_AHEAD / PAGE_SIZE;
d->bufpool = mp;
d->blkq = gd->queue = q;
q->queuedata = d;

6
drivers/block/drbd/drbd_main.c
View File

@ -2462,7 +2462,7 @@ static int drbd_congested(void *congested_data, int bdi_bits)
if (get_ldev(device)) {
q = bdev_get_queue(device->ldev->backing_bdev);
r = bdi_congested(&q->backing_dev_info, bdi_bits);
r = bdi_congested(q->backing_dev_info, bdi_bits);
put_ldev(device);
if (r)
reason = 'b';
@ -2834,8 +2834,8 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
/* we have no partitions. we contain only ourselves. */
device->this_bdev->bd_contains = device->this_bdev;
q->backing_dev_info.congested_fn = drbd_congested;
q->backing_dev_info.congested_data = device;
q->backing_dev_info->congested_fn = drbd_congested;
q->backing_dev_info->congested_data = device;
blk_queue_make_request(q, drbd_make_request);
blk_queue_write_cache(q, true, true);

12
drivers/block/drbd/drbd_nl.c
View File

@ -1328,11 +1328,13 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
if (b) {
blk_queue_stack_limits(q, b);
if (q->backing_dev_info.ra_pages != b->backing_dev_info.ra_pages) {
if (q->backing_dev_info->ra_pages !=
b->backing_dev_info->ra_pages) {
drbd_info(device, "Adjusting my ra_pages to backing device's (%lu -> %lu)\n",
q->backing_dev_info.ra_pages,
b->backing_dev_info.ra_pages);
q->backing_dev_info.ra_pages = b->backing_dev_info.ra_pages;
q->backing_dev_info->ra_pages,
b->backing_dev_info->ra_pages);
q->backing_dev_info->ra_pages =
b->backing_dev_info->ra_pages;
}
}
fixup_discard_if_not_supported(q);
@ -3345,7 +3347,7 @@ static void device_to_statistics(struct device_statistics *s,
s->dev_disk_flags = md->flags;
q = bdev_get_queue(device->ldev->backing_bdev);
s->dev_lower_blocked =
bdi_congested(&q->backing_dev_info,
bdi_congested(q->backing_dev_info,
(1 << WB_async_congested) |
(1 << WB_sync_congested));
put_ldev(device);

2
drivers/block/drbd/drbd_proc.c
View File

@ -288,7 +288,7 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
seq_printf(seq, "%2d: cs:Unconfigured\n", i);
} else {
/* reset device->congestion_reason */
bdi_rw_congested(&device->rq_queue->backing_dev_info);
bdi_rw_congested(device->rq_queue->backing_dev_info);
nc = rcu_dereference(first_peer_device(device)->connection->net_conf);
wp = nc ? nc->wire_protocol - DRBD_PROT_A + 'A' : ' ';

2
drivers/block/drbd/drbd_req.c
View File

@ -938,7 +938,7 @@ static bool remote_due_to_read_balancing(struct drbd_device *device, sector_t se
switch (rbm) {
case RB_CONGESTED_REMOTE:
bdi = &device->ldev->backing_bdev->bd_disk->queue->backing_dev_info;
bdi = device->ldev->backing_bdev->bd_disk->queue->backing_dev_info;
return bdi_read_congested(bdi);
case RB_LEAST_PENDING:
return atomic_read(&device->local_cnt) >

4
drivers/block/pktcdvd.c
View File

@ -1243,7 +1243,7 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
&& pd->bio_queue_size <= pd->write_congestion_off);
spin_unlock(&pd->lock);
if (wakeup) {
clear_bdi_congested(&pd->disk->queue->backing_dev_info,
clear_bdi_congested(pd->disk->queue->backing_dev_info,
BLK_RW_ASYNC);
}
@ -2370,7 +2370,7 @@ static void pkt_make_request_write(struct request_queue *q, struct bio *bio)
spin_lock(&pd->lock);
if (pd->write_congestion_on > 0
&& pd->bio_queue_size >= pd->write_congestion_on) {
set_bdi_congested(&q->backing_dev_info, BLK_RW_ASYNC);
set_bdi_congested(q->backing_dev_info, BLK_RW_ASYNC);
do {
spin_unlock(&pd->lock);
congestion_wait(BLK_RW_ASYNC, HZ);

2
drivers/block/rbd.c
View File

@ -4526,7 +4526,7 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
q->limits.discard_zeroes_data = 1;
if (!ceph_test_opt(rbd_dev->rbd_client->client, NOCRC))
q->backing_dev_info.capabilities |= BDI_CAP_STABLE_WRITES;
q->backing_dev_info->capabilities |= BDI_CAP_STABLE_WRITES;
disk->queue = q;

10
drivers/md/bcache/request.c
View File

@ -1009,7 +1009,7 @@ static int cached_dev_congested(void *data, int bits)
struct request_queue *q = bdev_get_queue(dc->bdev);
int ret = 0;
if (bdi_congested(&q->backing_dev_info, bits))
if (bdi_congested(q->backing_dev_info, bits))
return 1;
if (cached_dev_get(dc)) {
@ -1018,7 +1018,7 @@ static int cached_dev_congested(void *data, int bits)
for_each_cache(ca, d->c, i) {
q = bdev_get_queue(ca->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
ret |= bdi_congested(q->backing_dev_info, bits);
}
cached_dev_put(dc);
@ -1032,7 +1032,7 @@ void bch_cached_dev_request_init(struct cached_dev *dc)
struct gendisk *g = dc->disk.disk;
g->queue->make_request_fn = cached_dev_make_request;
g->queue->backing_dev_info.congested_fn = cached_dev_congested;
g->queue->backing_dev_info->congested_fn = cached_dev_congested;
dc->disk.cache_miss = cached_dev_cache_miss;
dc->disk.ioctl = cached_dev_ioctl;
}
@ -1125,7 +1125,7 @@ static int flash_dev_congested(void *data, int bits)
for_each_cache(ca, d->c, i) {
q = bdev_get_queue(ca->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
ret |= bdi_congested(q->backing_dev_info, bits);
}
return ret;
@ -1136,7 +1136,7 @@ void bch_flash_dev_request_init(struct bcache_device *d)
struct gendisk *g = d->disk;
g->queue->make_request_fn = flash_dev_make_request;
g->queue->backing_dev_info.congested_fn = flash_dev_congested;
g->queue->backing_dev_info->congested_fn = flash_dev_congested;
d->cache_miss = flash_dev_cache_miss;
d->ioctl = flash_dev_ioctl;
}

8
drivers/md/bcache/super.c
View File

@ -807,7 +807,7 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
blk_queue_make_request(q, NULL);
d->disk->queue = q;
q->queuedata = d;
q->backing_dev_info.congested_data = d;
q->backing_dev_info->congested_data = d;
q->limits.max_hw_sectors = UINT_MAX;
q->limits.max_sectors = UINT_MAX;
q->limits.max_segment_size = UINT_MAX;
@ -1132,9 +1132,9 @@ static int cached_dev_init(struct cached_dev *dc, unsigned block_size)
set_capacity(dc->disk.disk,
dc->bdev->bd_part->nr_sects - dc->sb.data_offset);
dc->disk.disk->queue->backing_dev_info.ra_pages =
max(dc->disk.disk->queue->backing_dev_info.ra_pages,
q->backing_dev_info.ra_pages);
dc->disk.disk->queue->backing_dev_info->ra_pages =
max(dc->disk.disk->queue->backing_dev_info->ra_pages,
q->backing_dev_info->ra_pages);
bch_cached_dev_request_init(dc);
bch_cached_dev_writeback_init(dc);

2
drivers/md/dm-cache-target.c
View File

@ -2284,7 +2284,7 @@ static void do_waker(struct work_struct *ws)
static int is_congested(struct dm_dev *dev, int bdi_bits)
{
struct request_queue *q = bdev_get_queue(dev->bdev);
return bdi_congested(&q->backing_dev_info, bdi_bits);
return bdi_congested(q->backing_dev_info, bdi_bits);
}
static int cache_is_congested(struct dm_target_callbacks *cb, int bdi_bits)

2
drivers/md/dm-era-target.c
View File

@ -1379,7 +1379,7 @@ static void stop_worker(struct era *era)
static int dev_is_congested(struct dm_dev *dev, int bdi_bits)
{
struct request_queue *q = bdev_get_queue(dev->bdev);
return bdi_congested(&q->backing_dev_info, bdi_bits);
return bdi_congested(q->backing_dev_info, bdi_bits);
}
static int era_is_congested(struct dm_target_callbacks *cb, int bdi_bits)

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

@ -1750,7 +1750,7 @@ int dm_table_any_congested(struct dm_table *t, int bdi_bits)
char b[BDEVNAME_SIZE];
if (likely(q))
r |= bdi_congested(&q->backing_dev_info, bdi_bits);
r |= bdi_congested(q->backing_dev_info, bdi_bits);
else
DMWARN_LIMIT("%s: any_congested: nonexistent device %s",
dm_device_name(t->md),

2
drivers/md/dm-thin.c
View File

@ -2711,7 +2711,7 @@ static int pool_is_congested(struct dm_target_callbacks *cb, int bdi_bits)
return 1;
q = bdev_get_queue(pt->data_dev->bdev);
return bdi_congested(&q->backing_dev_info, bdi_bits);
return bdi_congested(q->backing_dev_info, bdi_bits);
}
static void requeue_bios(struct pool *pool)

6
drivers/md/dm.c
View File

@ -1313,7 +1313,7 @@ static int dm_any_congested(void *congested_data, int bdi_bits)
* With request-based DM we only need to check the
* top-level queue for congestion.
*/
r = md->queue->backing_dev_info.wb.state & bdi_bits;
r = md->queue->backing_dev_info->wb.state & bdi_bits;
} else {
map = dm_get_live_table_fast(md);
if (map)
@ -1396,7 +1396,7 @@ void dm_init_md_queue(struct mapped_device *md)
* - must do so here (in alloc_dev callchain) before queue is used
*/
md->queue->queuedata = md;
md->queue->backing_dev_info.congested_data = md;
md->queue->backing_dev_info->congested_data = md;
}
void dm_init_normal_md_queue(struct mapped_device *md)
@ -1407,7 +1407,7 @@ void dm_init_normal_md_queue(struct mapped_device *md)
/*
* Initialize aspects of queue that aren't relevant for blk-mq
*/
md->queue->backing_dev_info.congested_fn = dm_any_congested;
md->queue->backing_dev_info->congested_fn = dm_any_congested;
blk_queue_bounce_limit(md->queue, BLK_BOUNCE_ANY);
}

2
drivers/md/linear.c
View File

@ -62,7 +62,7 @@ static int linear_congested(struct mddev *mddev, int bits)
for (i = 0; i < mddev->raid_disks && !ret ; i++) {
struct request_queue *q = bdev_get_queue(conf->disks[i].rdev->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
ret |= bdi_congested(q->backing_dev_info, bits);
}
return ret;

6
drivers/md/md.c
View File

@ -5341,8 +5341,8 @@ int md_run(struct mddev *mddev)
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mddev->queue);
else
queue_flag_clear_unlocked(QUEUE_FLAG_NONROT, mddev->queue);
mddev->queue->backing_dev_info.congested_data = mddev;
mddev->queue->backing_dev_info.congested_fn = md_congested;
mddev->queue->backing_dev_info->congested_data = mddev;
mddev->queue->backing_dev_info->congested_fn = md_congested;
}
if (pers->sync_request) {
if (mddev->kobj.sd &&
@ -5699,7 +5699,7 @@ static int do_md_stop(struct mddev *mddev, int mode,
__md_stop_writes(mddev);
__md_stop(mddev);
mddev->queue->backing_dev_info.congested_fn = NULL;
mddev->queue->backing_dev_info->congested_fn = NULL;
/* tell userspace to handle 'inactive' */
sysfs_notify_dirent_safe(mddev->sysfs_state);

2
drivers/md/multipath.c
View File

@ -169,7 +169,7 @@ static int multipath_congested(struct mddev *mddev, int bits)
if (rdev && !test_bit(Faulty, &rdev->flags)) {
struct request_queue *q = bdev_get_queue(rdev->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
ret |= bdi_congested(q->backing_dev_info, bits);
/* Just like multipath_map, we just check the
* first available device
*/

6
drivers/md/raid0.c
View File

@ -41,7 +41,7 @@ static int raid0_congested(struct mddev *mddev, int bits)
for (i = 0; i < raid_disks && !ret ; i++) {
struct request_queue *q = bdev_get_queue(devlist[i]->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
ret |= bdi_congested(q->backing_dev_info, bits);
}
return ret;
}
@ -420,8 +420,8 @@ static int raid0_run(struct mddev *mddev)
*/
int stripe = mddev->raid_disks *
(mddev->chunk_sectors << 9) / PAGE_SIZE;
if (mddev->queue->backing_dev_info.ra_pages < 2* stripe)
mddev->queue->backing_dev_info.ra_pages = 2* stripe;
if (mddev->queue->backing_dev_info->ra_pages < 2* stripe)
mddev->queue->backing_dev_info->ra_pages = 2* stripe;
}
dump_zones(mddev);

4
drivers/md/raid1.c
View File

@ -744,9 +744,9 @@ static int raid1_congested(struct mddev *mddev, int bits)
* non-congested targets, it can be removed
*/
if ((bits & (1 << WB_async_congested)) || 1)
ret |= bdi_congested(&q->backing_dev_info, bits);
ret |= bdi_congested(q->backing_dev_info, bits);
else
ret &= bdi_congested(&q->backing_dev_info, bits);
ret &= bdi_congested(q->backing_dev_info, bits);
}
}
rcu_read_unlock();

10
drivers/md/raid10.c
View File

@ -860,7 +860,7 @@ static int raid10_congested(struct mddev *mddev, int bits)
if (rdev && !test_bit(Faulty, &rdev->flags)) {
struct request_queue *q = bdev_get_queue(rdev->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
ret |= bdi_congested(q->backing_dev_info, bits);
}
}
rcu_read_unlock();
@ -3841,8 +3841,8 @@ static int raid10_run(struct mddev *mddev)
* maybe...
*/
stripe /= conf->geo.near_copies;
if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
if (mddev->queue->backing_dev_info->ra_pages < 2 * stripe)
mddev->queue->backing_dev_info->ra_pages = 2 * stripe;
}
if (md_integrity_register(mddev))
@ -4643,8 +4643,8 @@ static void end_reshape(struct r10conf *conf)
int stripe = conf->geo.raid_disks *
((conf->mddev->chunk_sectors << 9) / PAGE_SIZE);
stripe /= conf->geo.near_copies;
if (conf->mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
conf->mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
if (conf->mddev->queue->backing_dev_info->ra_pages < 2 * stripe)
conf->mddev->queue->backing_dev_info->ra_pages = 2 * stripe;
}
conf->fullsync = 0;
}

12
drivers/md/raid5.c
View File

@ -6264,10 +6264,10 @@ raid5_store_skip_copy(struct mddev *mddev, const char *page, size_t len)
mddev_suspend(mddev);
conf->skip_copy = new;
if (new)
mddev->queue->backing_dev_info.capabilities |=
mddev->queue->backing_dev_info->capabilities |=
BDI_CAP_STABLE_WRITES;
else
mddev->queue->backing_dev_info.capabilities &=
mddev->queue->backing_dev_info->capabilities &=
~BDI_CAP_STABLE_WRITES;
mddev_resume(mddev);
}
@ -7086,8 +7086,8 @@ static int raid5_run(struct mddev *mddev)
int data_disks = conf->previous_raid_disks - conf->max_degraded;
int stripe = data_disks *
((mddev->chunk_sectors << 9) / PAGE_SIZE);
if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
if (mddev->queue->backing_dev_info->ra_pages < 2 * stripe)
mddev->queue->backing_dev_info->ra_pages = 2 * stripe;
chunk_size = mddev->chunk_sectors << 9;
blk_queue_io_min(mddev->queue, chunk_size);
@ -7696,8 +7696,8 @@ static void end_reshape(struct r5conf *conf)
int data_disks = conf->raid_disks - conf->max_degraded;
int stripe = data_disks * ((conf->chunk_sectors << 9)
/ PAGE_SIZE);
if (conf->mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
conf->mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
if (conf->mddev->queue->backing_dev_info->ra_pages < 2 * stripe)
conf->mddev->queue->backing_dev_info->ra_pages = 2 * stripe;
}
}
}

2
fs/gfs2/ops_fstype.c
View File

@ -1226,7 +1226,7 @@ static int set_gfs2_super(struct super_block *s, void *data)
* We set the bdi here to the queue backing, file systems can
* overwrite this in ->fill_super()
*/
s->s_bdi = &bdev_get_queue(s->s_bdev)->backing_dev_info;
s->s_bdi = bdev_get_queue(s->s_bdev)->backing_dev_info;
return 0;
}

2
fs/nilfs2/super.c
View File

@ -1068,7 +1068,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_time_gran = 1;
sb->s_max_links = NILFS_LINK_MAX;
sb->s_bdi = &bdev_get_queue(sb->s_bdev)->backing_dev_info;
sb->s_bdi = bdev_get_queue(sb->s_bdev)->backing_dev_info;
err = load_nilfs(nilfs, sb);
if (err)

2
fs/super.c
View File

@ -1047,7 +1047,7 @@ static int set_bdev_super(struct super_block *s, void *data)
* We set the bdi here to the queue backing, file systems can
* overwrite this in ->fill_super()
*/
s->s_bdi = &bdev_get_queue(s->s_bdev)->backing_dev_info;
s->s_bdi = bdev_get_queue(s->s_bdev)->backing_dev_info;
return 0;
}

3
include/linux/blkdev.h
View File

@ -432,7 +432,8 @@ struct request_queue {
*/
struct delayed_work delay_work;
struct backing_dev_info backing_dev_info;
struct backing_dev_info *backing_dev_info;
struct backing_dev_info _backing_dev_info;
/*
* The queue owner gets to use this for whatever they like.

4
mm/page-writeback.c
View File

@ -1988,11 +1988,11 @@ void laptop_mode_timer_fn(unsigned long data)
* We want to write everything out, not just down to the dirty
* threshold
*/
if (!bdi_has_dirty_io(&q->backing_dev_info))
if (!bdi_has_dirty_io(q->backing_dev_info))
return;
rcu_read_lock();
list_for_each_entry_rcu(wb, &q->backing_dev_info.wb_list, bdi_node)
list_for_each_entry_rcu(wb, &q->backing_dev_info->wb_list, bdi_node)
if (wb_has_dirty_io(wb))
wb_start_writeback(wb, nr_pages, true,
WB_REASON_LAPTOP_TIMER);