kernel: split the kernel/user inputs in VfsReq

I think I've done this refactor in the opposite direction a few years ago.

This is mostly meant to prepare me for setxattr, which requires two inputs -
coincidentally, one is already going to be a kernel input, and the other will
be an user input, so it works out.

I also just didn't like the previous way it worked, this feels cleaner.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/kernel/arch/amd64/driver/pata.c b/src/kernel/arch/amd64/driver/pata.c
index cc6645d..59a43c3 100644
--- a/src/kernel/arch/amd64/driver/pata.c
+++ b/src/kernel/arch/amd64/driver/pata.c
@@ -47,10 +47,10 @@ static void accept(VfsReq *req) {
 				vfsreq_finish_short(req, req_readcopy(req, list, len));
 				break;
 			}
-			fs_normslice(&req->offset, &req->output.len, ata_size(id), false);
-			len = min(req->output.len, sizeof wbuf);
+			fs_normslice(&req->offset, &req->outlen, ata_size(id), false);
+			len = min(req->outlen, sizeof wbuf);
 			ata_read(id, wbuf, len, req->offset);
-			pcpy_to(req->caller, req->output.buf, wbuf, len);
+			pcpy_to(req->caller, req->out, wbuf, len);
 			vfsreq_finish_short(req, len);
 			break;
 
@@ -59,10 +59,10 @@ static void accept(VfsReq *req) {
 				vfsreq_finish_short(req, -EACCES);
 				break;
 			}
-			fs_normslice(&req->offset, &req->input.len, ata_size(id), false);
-			len = min(req->input.len, sizeof wbuf);
+			fs_normslice(&req->offset, &req->uinlen, ata_size(id), false);
+			len = min(req->uinlen, sizeof wbuf);
 			if (len != 0) {
-				len = pcpy_from(req->caller, wbuf, req->input.buf, len);
+				len = pcpy_from(req->caller, wbuf, req->uin, len);
 				ata_write(id, wbuf, len, req->offset);
 			}
 			vfsreq_finish_short(req, len);