linux(4): Return EAGAIN instead of ENOBUFS for non-blocking sockets i…

…n sendfile MFC after: 1 month
mcusim · Aug 19, 2023 · 4f9fac7 · 4f9fac7
1 parent da5a673
commit 4f9fac7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/sys/compat/linux/linux_socket.c b/sys/compat/linux/linux_socket.c
@@ -2570,6 +2570,8 @@ linux_sendfile_common(struct thread *td, l_int out, l_int in,
 		else
 			error = sendfile_fallback(td, fp, out, offset, count,
 			    &sbytes);
+		if (error == ENOBUFS && (ofp->f_flag & FNONBLOCK) != 0)
+			error = EAGAIN;
 		if (error == 0)
 			td->td_retval[0] = sbytes;
 	}