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-multipath.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-multipath.c')
| -rw-r--r-- | drivers/md/md-multipath.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/drivers/md/md-multipath.c b/drivers/md/md-multipath.c index 277fdfd9ee54..776bbe542db5 100644 --- a/drivers/md/md-multipath.c +++ b/drivers/md/md-multipath.c @@ -151,28 +151,6 @@ static void multipath_status(struct seq_file *seq, struct mddev *mddev) seq_putc(seq, ']'); } -static int multipath_congested(struct mddev *mddev, int bits) -{ - struct mpconf *conf = mddev->private; - int i, ret = 0; - - rcu_read_lock(); - for (i = 0; i < mddev->raid_disks ; i++) { - struct md_rdev *rdev = rcu_dereference(conf->multipaths[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct request_queue *q = bdev_get_queue(rdev->bdev); - - ret |= bdi_congested(q->backing_dev_info, bits); - /* Just like multipath_map, we just check the - * first available device - */ - break; - } - } - rcu_read_unlock(); - return ret; -} - /* * Careful, this can execute in IRQ contexts as well! */ @@ -478,7 +456,6 @@ static struct md_personality multipath_personality = .hot_add_disk = multipath_add_disk, .hot_remove_disk= multipath_remove_disk, .size = multipath_size, - .congested = multipath_congested, }; static int __init multipath_init (void) |