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authorJens Axboe <axboe@kernel.dk>2022-06-13 16:27:03 +0300
committerJens Axboe <axboe@kernel.dk>2022-07-25 03:39:12 +0300
commitf3b44f92e59a804cf375479bda0bccbf4b6e6ef6 (patch)
treecc1a658d1fd71f4f197bae3c1ba004bf3079c1df /io_uring/rw.h
parentc98817e6cd4471a6f6283813dd6efea162f5ac5f (diff)
downloadlinux-f3b44f92e59a804cf375479bda0bccbf4b6e6ef6.tar.xz
io_uring: move read/write related opcodes to its own file
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/rw.h')
-rw-r--r--io_uring/rw.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/io_uring/rw.h b/io_uring/rw.h
new file mode 100644
index 000000000000..0204c3fcafa5
--- /dev/null
+++ b/io_uring/rw.h
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/pagemap.h>
+
+struct io_rw_state {
+ struct iov_iter iter;
+ struct iov_iter_state iter_state;
+ struct iovec fast_iov[UIO_FASTIOV];
+};
+
+struct io_async_rw {
+ struct io_rw_state s;
+ const struct iovec *free_iovec;
+ size_t bytes_done;
+ struct wait_page_queue wpq;
+};
+
+int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe);
+int io_read(struct io_kiocb *req, unsigned int issue_flags);
+int io_readv_prep_async(struct io_kiocb *req);
+int io_write(struct io_kiocb *req, unsigned int issue_flags);
+int io_writev_prep_async(struct io_kiocb *req);
+void io_readv_writev_cleanup(struct io_kiocb *req);