From 38cf66edaacc4e58b561bea8a77abfd3facf59fe Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Tue, 23 Aug 2022 19:15:59 +0200
Subject: shared/ring: rename ring_size to ring_used, add ring_avail

---
 src/kernel/arch/amd64/driver/serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/kernel/arch/amd64/driver/serial.c')

diff --git a/src/kernel/arch/amd64/driver/serial.c b/src/kernel/arch/amd64/driver/serial.c
index b3bfe29..cf21b61 100644
--- a/src/kernel/arch/amd64/driver/serial.c
+++ b/src/kernel/arch/amd64/driver/serial.c
@@ -72,7 +72,7 @@ static void accept(struct vfs_request *req) {
 			vfsreq_finish_short(req, valid ? 0 : -1);
 			break;
 		case VFSOP_READ:
-			if (ring_size((void*)&backlog) == 0) {
+			if (ring_used((void*)&backlog) == 0) {
 				/* nothing to read, join queue */
 				assert(!req->postqueue_next);
 				struct vfs_request **slot = &blocked_on;
-- 
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