[PATCH 3/5] io_uring: opcode independent import_fixed

[Pavel Begunkov <asml.silence@gmail.com>]

Pass a buf explicitly into io_import_fixed(), so it can be used not only
for rw requests.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 fs/io_uring.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 88daf5fc7e8e..7703291617f3 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2933,21 +2933,18 @@ static void kiocb_done(struct kiocb *kiocb, ssize_t ret,
 		io_rw_done(kiocb, ret);
 }
 
-static ssize_t io_import_fixed(struct io_kiocb *req, int rw,
-			       struct iov_iter *iter)
+static ssize_t io_import_fixed(struct io_kiocb *req, int rw, u64 buf_addr,
+			       size_t len, struct iov_iter *iter)
 {
 	struct io_ring_ctx *ctx = req->ctx;
-	size_t len = req->rw.len;
 	struct io_mapped_ubuf *imu;
 	u16 index, buf_index = req->buf_index;
 	size_t offset;
-	u64 buf_addr;
 
 	if (unlikely(buf_index >= ctx->nr_user_bufs))
 		return -EFAULT;
 	index = array_index_nospec(buf_index, ctx->nr_user_bufs);
 	imu = &ctx->user_bufs[index];
-	buf_addr = req->rw.addr;
 
 	/* overflow */
 	if (buf_addr + len < buf_addr)
@@ -3153,7 +3150,7 @@ static ssize_t io_import_iovec(int rw, struct io_kiocb *req,
 	opcode = req->opcode;
 	if (opcode == IORING_OP_READ_FIXED || opcode == IORING_OP_WRITE_FIXED) {
 		*iovec = NULL;
-		return io_import_fixed(req, rw, iter);
+		return io_import_fixed(req, rw, req->rw.addr, sqe_len, iter);
 	}
 
 	/* buffer index only valid with fixed read/write, or buffer select  */
-- 
2.24.0