bjoernager/rust
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Use syscall! for copy_file_range too

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This commit is contained in:
Josh Stone 2020-11-05 14:09:28 -08:00
parent a035626eb5
commit cd22381daa
1 changed files with 9 additions and 9 deletions
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8
library/std/src/sys/unix/kernel_copy.rs
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@ -445,15 +445,15 @@ pub(super) fn copy_regular_files(reader: RawFd, writer: RawFd, max_len: u64) ->
// We store the availability in a global to avoid unnecessary syscalls // We store the availability in a global to avoid unnecessary syscalls
static HAS_COPY_FILE_RANGE: AtomicBool = AtomicBool::new(true); static HAS_COPY_FILE_RANGE: AtomicBool = AtomicBool::new(true);
unsafe fn copy_file_range( syscall! {
fn copy_file_range(
fd_in: libc::c_int, fd_in: libc::c_int,
off_in: *mut libc::loff_t, off_in: *mut libc::loff_t,
fd_out: libc::c_int, fd_out: libc::c_int,
off_out: *mut libc::loff_t, off_out: *mut libc::loff_t,
len: libc::size_t, len: libc::size_t,
flags: libc::c_uint, flags: libc::c_uint
) -> libc::c_long { ) -> libc::ssize_t
libc::syscall(libc::SYS_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags)
} }
let has_copy_file_range = HAS_COPY_FILE_RANGE.load(Ordering::Relaxed); let has_copy_file_range = HAS_COPY_FILE_RANGE.load(Ordering::Relaxed);