kata-containers/cgroups-rs
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Merge pull request #127 from nrxus/cgroup2-identify-musl

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make musl cgroupv2 identifying same as other target_envs
This commit is contained in:
Tim Zhang
2023-10-25 14:42:03 +08:00
committed by GitHub
parent 3c4b724433 17a6c6b842
commit 4f1fe13d91
1 changed files with 5 additions and 32 deletions
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37
src/hierarchies.rs
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@@ -309,43 +309,16 @@ impl Default for V2 {
pub const UNIFIED_MOUNTPOINT: &str = "/sys/fs/cgroup";
#[cfg(any(
all(target_os = "linux", not(target_env = "musl")),
target_os = "android"
))]
pub fn is_cgroup2_unified_mode() -> bool {
use nix::sys::statfs;
let path = std::path::Path::new(UNIFIED_MOUNTPOINT);
let fs_stat = statfs::statfs(path);
if fs_stat.is_err() {
return false;
}
let fs_stat = match statfs::statfs(path) {
Ok(fs_stat) => fs_stat,
Err(_) => return false,
};
// FIXME notwork, nix will not compile CGROUP2_SUPER_MAGIC because not(target_env = "musl")
fs_stat.unwrap().filesystem_type() == statfs::CGROUP2_SUPER_MAGIC
}
pub const INIT_CGROUP_PATHS: &str = "/proc/1/cgroup";
#[cfg(all(target_os = "linux", target_env = "musl"))]
pub fn is_cgroup2_unified_mode() -> bool {
let lines = fs::read_to_string(INIT_CGROUP_PATHS);
if lines.is_err() {
return false;
}
for line in lines.unwrap().lines() {
let fields: Vec<&str> = line.split(':').collect();
if fields.len() != 3 {
continue;
}
if fields[0] != "0" {
return false;
}
}
true
fs_stat.filesystem_type() == statfs::CGROUP2_SUPER_MAGIC
}
pub fn auto() -> Box<dyn Hierarchy> {