blkcg is gonna switch to cgroup common weight range as defined by
CGROUP_WEIGHT_* on the unified hierarchy. In preparation, rename
CFQ_WEIGHT_* constants to CFQ_WEIGHT_LEGACY_*.
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: Arianna Avanzini <avanzini.arianna@xxxxxxxxx>
---
block/cfq-iosched.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 97da571..0fe721e 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -68,9 +68,9 @@ static struct kmem_cache *cfq_pool;
#define rb_entry_cfqg(node) rb_entry((node), struct cfq_group, rb_node)
/* blkio-related constants */
-#define CFQ_WEIGHT_MIN 10
-#define CFQ_WEIGHT_MAX 1000
-#define CFQ_WEIGHT_DEFAULT 500
+#define CFQ_WEIGHT_LEGACY_MIN 10
+#define CFQ_WEIGHT_LEGACY_DFL 500
+#define CFQ_WEIGHT_LEGACY_MAX 1000
struct cfq_ttime {
unsigned long last_end_request;
@@ -1580,11 +1580,11 @@ static void cfq_cpd_init(struct blkcg_policy_data *cpd)
struct cfq_group_data *cgd = cpd_to_cfqgd(cpd);
if (cpd_to_blkcg(cpd) == &blkcg_root) {
- cgd->weight = 2 * CFQ_WEIGHT_DEFAULT;
- cgd->leaf_weight = 2 * CFQ_WEIGHT_DEFAULT;
+ cgd->weight = 2 * CFQ_WEIGHT_LEGACY_DFL;
+ cgd->leaf_weight = 2 * CFQ_WEIGHT_LEGACY_DFL;
} else {
- cgd->weight = CFQ_WEIGHT_DEFAULT;
- cgd->leaf_weight = CFQ_WEIGHT_DEFAULT;
+ cgd->weight = CFQ_WEIGHT_LEGACY_DFL;
+ cgd->leaf_weight = CFQ_WEIGHT_LEGACY_DFL;
}
}
@@ -1769,7 +1769,7 @@ static ssize_t __cfqg_set_weight_device(struct kernfs_open_file *of,
cfqgd = blkcg_to_cfqgd(blkcg);
ret = -ERANGE;
- if (!v || (v >= CFQ_WEIGHT_MIN && v <= CFQ_WEIGHT_MAX)) {
+ if (!v || (v >= CFQ_WEIGHT_LEGACY_MIN && v <= CFQ_WEIGHT_LEGACY_MAX)) {
if (!is_leaf_weight) {
cfqg->dev_weight = v;
cfqg->new_weight = v ?: cfqgd->weight;
@@ -1804,7 +1804,7 @@ static int __cfq_set_weight(struct cgroup_subsys_state *css, u64 val,
struct cfq_group_data *cfqgd;
int ret = 0;
- if (val < CFQ_WEIGHT_MIN || val > CFQ_WEIGHT_MAX)
+ if (val < CFQ_WEIGHT_LEGACY_MIN || val > CFQ_WEIGHT_LEGACY_MAX)
return -EINVAL;
spin_lock_irq(&blkcg->lock);
@@ -4513,8 +4513,8 @@ static int cfq_init_queue(struct request_queue *q, struct elevator_type *e)
cfq_init_cfqg_base(cfqd->root_group);
#endif
- cfqd->root_group->weight = 2 * CFQ_WEIGHT_DEFAULT;
- cfqd->root_group->leaf_weight = 2 * CFQ_WEIGHT_DEFAULT;
+ cfqd->root_group->weight = 2 * CFQ_WEIGHT_LEGACY_DFL;
+ cfqd->root_group->leaf_weight = 2 * CFQ_WEIGHT_LEGACY_DFL;
/*
* Not strictly needed (since RB_ROOT just clears the node and we
--
2.4.3
--
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