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Ignore kmem in cgroup v2

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Because there is no kmem in cgroup v2.

Signed-off-by: Tim Zhang <tim@hyper.sh>
This commit is contained in:
Tim Zhang
2020-12-07 15:39:17 +08:00
parent c254fffbe0
commit 059204589c
1 changed files with 20 additions and 0 deletions
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20
src/memory.rs
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@@ -702,6 +702,11 @@ impl MemController {
/// Reset the kernel memory fail counter
pub fn reset_kmem_fail_count(&self) -> Result<()> {
// Ignore kmem because there is no kmem in cgroup v2
if self.v2 {
return Ok(());
}
self.open_path("memory.kmem.failcnt", true)
.and_then(|mut file| {
file.write_all("0".to_string().as_ref())
@@ -711,6 +716,11 @@ impl MemController {
/// Reset the TCP related fail counter
pub fn reset_tcp_fail_count(&self) -> Result<()> {
// Ignore kmem because there is no kmem in cgroup v2
if self.v2 {
return Ok(());
}
self.open_path("memory.kmem.tcp.failcnt", true)
.and_then(|mut file| {
file.write_all("0".to_string().as_ref())
@@ -750,6 +760,11 @@ impl MemController {
/// Set the kernel memory limit of the control group, in bytes.
pub fn set_kmem_limit(&self, limit: i64) -> Result<()> {
// Ignore kmem because there is no kmem in cgroup v2
if self.v2 {
return Ok(());
}
self.open_path("memory.kmem.limit_in_bytes", true)
.and_then(|mut file| {
file.write_all(limit.to_string().as_ref())
@@ -771,6 +786,11 @@ impl MemController {
/// Set how much kernel memory can be used for TCP-related buffers by the control group.
pub fn set_tcp_limit(&self, limit: i64) -> Result<()> {
// Ignore kmem because there is no kmem in cgroup v2
if self.v2 {
return Ok(());
}
self.open_path("memory.kmem.tcp.limit_in_bytes", true)
.and_then(|mut file| {
file.write_all(limit.to_string().as_ref())