From ce00d1677d7a419b427e7f11963eee982a55a231 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Thu, 4 Aug 2022 23:06:57 +0200
Subject: do some simple TODOs, organize the rest; general code maintainance

---
 src/kernel/arch/amd64/driver/util.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 src/kernel/arch/amd64/driver/util.c

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

diff --git a/src/kernel/arch/amd64/driver/util.c b/src/kernel/arch/amd64/driver/util.c
new file mode 100644
index 0000000..b03e582
--- /dev/null
+++ b/src/kernel/arch/amd64/driver/util.c
@@ -0,0 +1,16 @@
+#include <camellia/fsutil.h>
+#include <kernel/arch/amd64/driver/util.h>
+#include <kernel/mem/virt.h>
+#include <kernel/panic.h>
+#include <kernel/vfs/request.h>
+
+int req_readcopy(struct vfs_request *req, const void *buf, size_t len) {
+	if (!req->caller) return -1;
+	assert(req->type == VFSOP_READ);
+	fs_normslice(&req->offset, &req->output.len, len, false);
+	virt_cpy_to(
+			req->caller->pages, req->output.buf,
+			buf + req->offset, req->output.len);
+	/* read errors are ignored. TODO write a spec */
+	return req->output.len;
+}
-- 
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