Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[beta] limit chunk size for copy_file_range to 1GB per iteration #79007

Closed
wants to merge 1 commit into from
Closed

[beta] limit chunk size for copy_file_range to 1GB per iteration #79007

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion library/std/src/sys/unix/fs.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1147,7 +1147,7 @@ pub fn copy(from: &Path, to: &Path) -> io::Result<u64> {
let mut written = 0u64;
while written < max_len {
let copy_result = if has_copy_file_range {
let bytes_to_copy = cmp::min(max_len - written, usize::MAX as u64) as usize;
let bytes_to_copy = cmp::min(max_len - written, 0x4000_0000 as u64) as usize;
let copy_result = unsafe {
// We actually don't have to adjust the offsets,
// because copy_file_range adjusts the file offset automatically
Expand Down