io_uring: convert madvise/fadvise to use io_cmd_type

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 65eb41a..60d462d 100644 (file)
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -980,8 +980,6 @@ struct io_kiocb {
                struct file             *file;
                struct io_cmd_data      cmd;
                struct io_rsrc_update   rsrc_update;
-               struct io_fadvise       fadvise;
-               struct io_madvise       madvise;
                struct io_epoll         epoll;
                struct io_splice        splice;
                struct io_provide_buf   pbuf;
@@ -5629,12 +5627,14 @@ static int io_epoll_ctl(struct io_kiocb *req, unsigned int issue_flags)
 static int io_madvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
 #if defined(CONFIG_ADVISE_SYSCALLS) && defined(CONFIG_MMU)
+       struct io_madvise *ma = io_kiocb_to_cmd(req);
+
        if (sqe->buf_index || sqe->off || sqe->splice_fd_in)
                return -EINVAL;
 
-       req->madvise.addr = READ_ONCE(sqe->addr);
-       req->madvise.len = READ_ONCE(sqe->len);
-       req->madvise.advice = READ_ONCE(sqe->fadvise_advice);
+       ma->addr = READ_ONCE(sqe->addr);
+       ma->len = READ_ONCE(sqe->len);
+       ma->advice = READ_ONCE(sqe->fadvise_advice);
        return 0;
 #else
        return -EOPNOTSUPP;
@@ -5644,7 +5644,7 @@ static int io_madvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 static int io_madvise(struct io_kiocb *req, unsigned int issue_flags)
 {
 #if defined(CONFIG_ADVISE_SYSCALLS) && defined(CONFIG_MMU)
-       struct io_madvise *ma = &req->madvise;
+       struct io_madvise *ma = io_kiocb_to_cmd(req);
        int ret;
 
        if (issue_flags & IO_URING_F_NONBLOCK)
@@ -5660,18 +5660,20 @@ static int io_madvise(struct io_kiocb *req, unsigned int issue_flags)
 
 static int io_fadvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
+       struct io_fadvise *fa = io_kiocb_to_cmd(req);
+
        if (sqe->buf_index || sqe->addr || sqe->splice_fd_in)
                return -EINVAL;
 
-       req->fadvise.offset = READ_ONCE(sqe->off);
-       req->fadvise.len = READ_ONCE(sqe->len);
-       req->fadvise.advice = READ_ONCE(sqe->fadvise_advice);
+       fa->offset = READ_ONCE(sqe->off);
+       fa->len = READ_ONCE(sqe->len);
+       fa->advice = READ_ONCE(sqe->fadvise_advice);
        return 0;
 }
 
 static int io_fadvise(struct io_kiocb *req, unsigned int issue_flags)
 {
-       struct io_fadvise *fa = &req->fadvise;
+       struct io_fadvise *fa = io_kiocb_to_cmd(req);
        int ret;
 
        if (issue_flags & IO_URING_F_NONBLOCK) {