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Use SpinLock on FileTable for efficiency

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This commit is contained in:
Shaowei Song
2024-09-13 03:36:33 +00:00
committed by Tate, Hongliang Tian
parent 4a43e317b2
commit 1186fb7ca9
14 changed files with 108 additions and 66 deletions
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6
kernel/src/process/clone.rs
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@ -394,16 +394,16 @@ fn clone_fs(
}
fn clone_files(
parent_file_table: &Arc<Mutex<FileTable>>,
parent_file_table: &Arc<SpinLock<FileTable>>,
clone_flags: CloneFlags,
) -> Arc<Mutex<FileTable>> {
) -> Arc<SpinLock<FileTable>> {
// if CLONE_FILES is set, the child and parent shares the same file table
// Otherwise, the child will deep copy a new file table.
// FIXME: the clone may not be deep copy.
if clone_flags.contains(CloneFlags::CLONE_FILES) {
parent_file_table.clone()
} else {
Arc::new(Mutex::new(parent_file_table.lock().clone()))
Arc::new(SpinLock::new(parent_file_table.lock().clone()))
}
}