diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-01 11:06:21 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-08 17:05:53 -0600 |
| commit | 8c911f3d4c074a17955a1757c9d1d5a9a5209ca5 (patch) | |
| tree | 6a6219be3bf116a79973eeb585773c50a30042ef /block | |
| parent | 492d76b215660be833f12c3fa7cf2faf39434841 (diff) | |
| download | linux-8c911f3d4c074a17955a1757c9d1d5a9a5209ca5.tar.gz linux-8c911f3d4c074a17955a1757c9d1d5a9a5209ca5.tar.bz2 linux-8c911f3d4c074a17955a1757c9d1d5a9a5209ca5.zip | |
writeback: remove struct bdi_writeback_congested
We never set any congested bits in the group writeback instances of it.
And for the simpler bdi-wide case a simple scalar field is all that
that is needed.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-cgroup.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 594f1d0b0e5a..e00d0458a9d6 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -95,9 +95,6 @@ static void __blkg_release(struct rcu_head *rcu) css_put(&blkg->blkcg->css); if (blkg->parent) blkg_put(blkg->parent); - - wb_congested_put(blkg->wb_congested); - blkg_free(blkg); } @@ -227,7 +224,6 @@ static struct blkcg_gq *blkg_create(struct blkcg *blkcg, struct blkcg_gq *new_blkg) { struct blkcg_gq *blkg; - struct bdi_writeback_congested *wb_congested; int i, ret; WARN_ON_ONCE(!rcu_read_lock_held()); @@ -245,31 +241,22 @@ static struct blkcg_gq *blkg_create(struct blkcg *blkcg, goto err_free_blkg; } - wb_congested = wb_congested_get_create(q->backing_dev_info, - blkcg->css.id, - GFP_NOWAIT | __GFP_NOWARN); - if (!wb_congested) { - ret = -ENOMEM; - goto err_put_css; - } - /* allocate */ if (!new_blkg) { new_blkg = blkg_alloc(blkcg, q, GFP_NOWAIT | __GFP_NOWARN); if (unlikely(!new_blkg)) { ret = -ENOMEM; - goto err_put_congested; + goto err_put_css; } } blkg = new_blkg; - blkg->wb_congested = wb_congested; /* link parent */ if (blkcg_parent(blkcg)) { blkg->parent = __blkg_lookup(blkcg_parent(blkcg), q, false); if (WARN_ON_ONCE(!blkg->parent)) { ret = -ENODEV; - goto err_put_congested; + goto err_put_css; } blkg_get(blkg->parent); } @@ -306,8 +293,6 @@ static struct blkcg_gq *blkg_create(struct blkcg *blkcg, blkg_put(blkg); return ERR_PTR(ret); -err_put_congested: - wb_congested_put(wb_congested); err_put_css: css_put(&blkcg->css); err_free_blkg: |