Add missing #[inline] on AsFd impl for sys::unix::fs::File

This operation should be extremely cheap, at most the mov of the underlying
file descriptor, but due to this missing #[inline] it is currently a function
call.

1 files changed, 1 insertions, 0 deletions

diff --git a/library/std/src/sys/unix/fs.rs b/library/std/src/sys/unix/fs.rs
index 764e1f25790..5ed2bdd7fe3 100644
--- a/library/std/src/sys/unix/fs.rs
+++ b/library/std/src/sys/unix/fs.rs
@@ -1391,6 +1391,7 @@ impl FromInner<FileDesc> for File {
 }
 
 impl AsFd for File {
+    #[inline]
     fn as_fd(&self) -> BorrowedFd<'_> {
         self.0.as_fd()
     }