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/dm-thin.c | |
| parent | 8c911f3d4c074a17955a1757c9d1d5a9a5209ca5 (diff) | |
| download | linux-21cf866145047f8bfecb38ec8d2fed64464c074f.tar.gz linux-21cf866145047f8bfecb38ec8d2fed64464c074f.tar.xz | |
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/dm-thin.c')
| -rw-r--r-- | drivers/md/dm-thin.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index fe2de2888709..fff4c50df74d 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -326,7 +326,6 @@ struct pool_c { struct pool *pool; struct dm_dev *data_dev; struct dm_dev *metadata_dev; - struct dm_target_callbacks callbacks; dm_block_t low_water_blocks; struct pool_features requested_pf; /* Features requested during table load */ @@ -2796,18 +2795,6 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio) } } -static int pool_is_congested(struct dm_target_callbacks *cb, int bdi_bits) -{ - struct pool_c *pt = container_of(cb, struct pool_c, callbacks); - struct request_queue *q; - - if (get_pool_mode(pt->pool) == PM_OUT_OF_DATA_SPACE) - return 1; - - q = bdev_get_queue(pt->data_dev->bdev); - return bdi_congested(q->backing_dev_info, bdi_bits); -} - static void requeue_bios(struct pool *pool) { struct thin_c *tc; @@ -3420,9 +3407,6 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv) dm_pool_register_pre_commit_callback(pool->pmd, metadata_pre_commit_callback, pool); - pt->callbacks.congested_fn = pool_is_congested; - dm_table_add_target_callbacks(ti->table, &pt->callbacks); - mutex_unlock(&dm_thin_pool_table.mutex); return 0; |