kernel: new queue abstraction

The postqueue functions remain as-is, as that's a more "specialized" interface.
They're mostly wrappers around queue.h, though.

1 files changed, 4 insertions, 16 deletions

diff --git a/src/kernel/vfs/request.c b/src/kernel/vfs/request.c
index 8a80f04..8e6f14a 100644
--- a/src/kernel/vfs/request.c
+++ b/src/kernel/vfs/request.c
@@ -3,6 +3,7 @@
 #include <kernel/malloc.h>
 #include <kernel/panic.h>
 #include <kernel/proc.h>
+#include <kernel/queue.h>
 #include <kernel/vfs/request.h>
 #include <shared/mem.h>
 
@@ -236,32 +237,19 @@ vfsback_provdown(VfsBackend *b)
 void
 reqqueue_init(ReqQueue *q)
 {
-	q->head = NULL;
-	q->slot = &q->head;
+	QUEUE_INIT(q);
 }
 
 void
 reqqueue_join(ReqQueue *q, VfsReq *req)
 {
-	assert(req->reqqueue_next == NULL);
-	assert(q->slot != NULL);
-	assert(*q->slot == NULL);
-	*q->slot = req;
-	q->slot = &req->reqqueue_next;
+	QUEUE_APPEND(q, reqqueue, req);
 }
 
 VfsReq *
 reqqueue_pop(ReqQueue *q)
 {
-	VfsReq *req = q->head;
-	if (req) {
-		q->head = req->reqqueue_next;
-		req->reqqueue_next = NULL;
-		if (q->slot == &req->reqqueue_next) {
-			q->slot = &q->head;
-		}
-	}
-	return req;
+	return QUEUE_POP(q, reqqueue);
 }
 
 void