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do not attempt to open cgroup files under Miri

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This commit is contained in:
Ralf Jung 2022-03-05 11:23:25 -05:00
parent c8a49fc902
commit 51b4ea2ba1
1 changed files with 5 additions and 0 deletions
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5
library/std/src/sys/unix/thread.rs
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@ -384,6 +384,11 @@ fn cgroup2_quota() -> usize {
use crate::path::PathBuf;
let mut quota = usize::MAX;
if cfg!(miri) {
// Attempting to open a file fails under default flags due to isolation.
// And Miri does not have parallelism anyway.
return quota;
}
let _: Option<()> = try {
let mut buf = Vec::with_capacity(128);