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Merge pull request #166 from burgerdev/fix-cgroup-create-race

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Fix race condition in create_v2_cgroup
This commit is contained in:
Xuewei Niu
2026-07-14 17:00:41 +08:00
committed by GitHub
parent 0236d210d5 7cd1cda42f
commit fdcf75b27b
1 changed files with 6 additions and 6 deletions
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12
src/fs/cgroup.rs
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@@ -550,18 +550,18 @@ fn create_v2_cgroup(
// path: "a/b/c"
let elements = path.split('/').collect::<Vec<&str>>();
let last_index = elements.len() - 1;
// Build up the directory hierarchy element by element, enabling the controllers for all
// parents along the way.
for (i, ele) in elements.iter().enumerate() {
// ROOT/a
fp.push(ele);
// create dir, need not check if is a file or directory
if !fp.exists() {
if let Err(e) = std::fs::create_dir(fp.clone()) {
return Err(Error::with_cause(ErrorKind::FsError, e));
}
// create dir if necessary
if let Err(e) = std::fs::create_dir_all(fp.clone()) {
return Err(Error::with_cause(ErrorKind::FsError, e));
}
if i < last_index {
// enable controllers for substree
// enable controllers for subtree
enable_controllers(&controllers, &fp);
}
}