diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-01 11:06:22 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-08 17:20:46 -0600 |
| commit | 21cf866145047f8bfecb38ec8d2fed64464c074f (patch) | |
| tree | 90eb0e7a2a318eed587c06ceb474c0f89d498c91 /drivers/md/md.c | |
| parent | 8c911f3d4c074a17955a1757c9d1d5a9a5209ca5 (diff) | |
writeback: remove bdi->congested_fn
Except for pktdvd, the only places setting congested bits are file
systems that allocate their own backing_dev_info structures. And
pktdvd is a deprecated driver that isn't useful in stack setup
either. So remove the dead congested_fn stacking infrastructure.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Song Liu <song@kernel.org>
Acked-by: David Sterba <dsterba@suse.com>
[axboe: fixup unused variables in bcache/request.c]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 77dfe4765c31..96b28f6d025c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -549,26 +549,6 @@ void mddev_resume(struct mddev *mddev) } EXPORT_SYMBOL_GPL(mddev_resume); -int mddev_congested(struct mddev *mddev, int bits) -{ - struct md_personality *pers = mddev->pers; - int ret = 0; - - rcu_read_lock(); - if (mddev->suspended) - ret = 1; - else if (pers && pers->congested) - ret = pers->congested(mddev, bits); - rcu_read_unlock(); - return ret; -} -EXPORT_SYMBOL_GPL(mddev_congested); -static int md_congested(void *data, int bits) -{ - struct mddev *mddev = data; - return mddev_congested(mddev, bits); -} - /* * Generic flush handling for md */ @@ -5965,8 +5945,6 @@ int md_run(struct mddev *mddev) blk_queue_flag_set(QUEUE_FLAG_NONROT, mddev->queue); else blk_queue_flag_clear(QUEUE_FLAG_NONROT, mddev->queue); - 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 && @@ -6351,7 +6329,6 @@ 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; /* tell userspace to handle 'inactive' */ sysfs_notify_dirent_safe(mddev->sysfs_state); |