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Use Option as resource fields, remove the update switch: update_values

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Use idiomatic Option::None to represent optional fields.
This enables updates where not all fields need to be specified.

Signed-off-by: Tim Zhang <tim@hyper.sh>
This commit is contained in:
Tim Zhang
2020-11-05 11:18:39 +08:00
parent 0c18b0855e
commit 567cdb43b3
11 changed files with 99 additions and 143 deletions
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src/blkio.rs
+24 -27
View File
@@ -344,39 +344,36 @@ impl ControllerInternal for BlkIoController {
// get the resources that apply to this controller
let res: &BlkIoResources = &res.blkio;
if res.update_values {
if let Some(weight) = res.weight {
let _ = self.set_weight(weight as u64);
}
if let Some(leaf_weight) = res.leaf_weight {
let _ = self.set_leaf_weight(leaf_weight as u64);
}
if let Some(weight) = res.weight {
let _ = self.set_weight(weight as u64);
}
if let Some(leaf_weight) = res.leaf_weight {
let _ = self.set_leaf_weight(leaf_weight as u64);
}
for dev in &res.weight_device {
if let Some(weight) = dev.weight {
let _ = self.set_weight_for_device(dev.major, dev.minor, weight as u64);
}
if let Some(leaf_weight) = dev.leaf_weight {
let _ =
self.set_leaf_weight_for_device(dev.major, dev.minor, leaf_weight as u64);
}
for dev in &res.weight_device {
if let Some(weight) = dev.weight {
let _ = self.set_weight_for_device(dev.major, dev.minor, weight as u64);
}
if let Some(leaf_weight) = dev.leaf_weight {
let _ = self.set_leaf_weight_for_device(dev.major, dev.minor, leaf_weight as u64);
}
}
for dev in &res.throttle_read_bps_device {
let _ = self.throttle_read_bps_for_device(dev.major, dev.minor, dev.rate);
}
for dev in &res.throttle_read_bps_device {
let _ = self.throttle_read_bps_for_device(dev.major, dev.minor, dev.rate);
}
for dev in &res.throttle_write_bps_device {
let _ = self.throttle_write_bps_for_device(dev.major, dev.minor, dev.rate);
}
for dev in &res.throttle_write_bps_device {
let _ = self.throttle_write_bps_for_device(dev.major, dev.minor, dev.rate);
}
for dev in &res.throttle_read_iops_device {
let _ = self.throttle_read_iops_for_device(dev.major, dev.minor, dev.rate);
}
for dev in &res.throttle_read_iops_device {
let _ = self.throttle_read_iops_for_device(dev.major, dev.minor, dev.rate);
}
for dev in &res.throttle_write_iops_device {
let _ = self.throttle_write_iops_for_device(dev.major, dev.minor, dev.rate);
}
for dev in &res.throttle_write_iops_device {
let _ = self.throttle_write_iops_for_device(dev.major, dev.minor, dev.rate);
}
Ok(())