Commit 45d189c6 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring: replace force_nonblock with flags 



Replace bool force_nonblock with flags. It has a long standing goal of
differentiating context from which we execute. Currently we have some
subtle places where some invariants, like holding of uring_lock, are
subtly inferred.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 0e9ddb39

fs/io_uring.c

+96 −82
Original line number Diff line number Diff line
@@ -187,6 +187,10 @@ struct io_rings { 
	struct io_uring_cqe	cqes[] ____cacheline_aligned_in_smp;

};



enum io_uring_cmd_flags {

	IO_URING_F_NONBLOCK		= 1,

};



struct io_mapped_ubuf {

	u64		ubuf;

	size_t		len;
@@ -3477,7 +3481,7 @@ static int io_iter_do_read(struct io_kiocb *req, struct iov_iter *iter) 
		return -EINVAL;

}



static int io_read(struct io_kiocb *req, bool force_nonblock,

static int io_read(struct io_kiocb *req, unsigned int issue_flags,

		   struct io_comp_state *cs)

{

	struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs;
@@ -3485,6 +3489,7 @@ static int io_read(struct io_kiocb *req, bool force_nonblock, 
	struct iov_iter __iter, *iter = &__iter;

	struct io_async_rw *rw = req->async_data;

	ssize_t io_size, ret, ret2;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;



	if (rw) {

		iter = &rw->iter;
@@ -3588,7 +3593,7 @@ static int io_write_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return io_rw_prep_async(req, WRITE);

}



static int io_write(struct io_kiocb *req, bool force_nonblock,

static int io_write(struct io_kiocb *req, unsigned int issue_flags,

		    struct io_comp_state *cs)

{

	struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs;
@@ -3596,6 +3601,7 @@ static int io_write(struct io_kiocb *req, bool force_nonblock, 
	struct iov_iter __iter, *iter = &__iter;

	struct io_async_rw *rw = req->async_data;

	ssize_t ret, ret2, io_size;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;



	if (rw) {

		iter = &rw->iter;
@@ -3706,12 +3712,12 @@ static int io_renameat_prep(struct io_kiocb *req, 
	return 0;

}



static int io_renameat(struct io_kiocb *req, bool force_nonblock)

static int io_renameat(struct io_kiocb *req, unsigned int issue_flags)

{

	struct io_rename *ren = &req->rename;

	int ret;



	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;



	ret = do_renameat2(ren->old_dfd, ren->oldpath, ren->new_dfd,
@@ -3748,12 +3754,12 @@ static int io_unlinkat_prep(struct io_kiocb *req, 
	return 0;

}



static int io_unlinkat(struct io_kiocb *req, bool force_nonblock)

static int io_unlinkat(struct io_kiocb *req, unsigned int issue_flags)

{

	struct io_unlink *un = &req->unlink;

	int ret;



	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;



	if (un->flags & AT_REMOVEDIR)
@@ -3785,13 +3791,13 @@ static int io_shutdown_prep(struct io_kiocb *req, 
#endif

}



static int io_shutdown(struct io_kiocb *req, bool force_nonblock)

static int io_shutdown(struct io_kiocb *req, unsigned int issue_flags)

{

#if defined(CONFIG_NET)

	struct socket *sock;

	int ret;



	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;



	sock = sock_from_file(req->file);
@@ -3850,7 +3856,7 @@ static int io_tee_prep(struct io_kiocb *req, 
	return __io_splice_prep(req, sqe);

}



static int io_tee(struct io_kiocb *req, bool force_nonblock)

static int io_tee(struct io_kiocb *req, unsigned int issue_flags)

{

	struct io_splice *sp = &req->splice;

	struct file *in = sp->file_in;
@@ -3858,7 +3864,7 @@ static int io_tee(struct io_kiocb *req, bool force_nonblock) 
	unsigned int flags = sp->flags & ~SPLICE_F_FD_IN_FIXED;

	long ret = 0;



	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;

	if (sp->len)

		ret = do_tee(in, out, sp->len, flags);
@@ -3881,7 +3887,7 @@ static int io_splice_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return __io_splice_prep(req, sqe);

}



static int io_splice(struct io_kiocb *req, bool force_nonblock)

static int io_splice(struct io_kiocb *req, unsigned int issue_flags)

{

	struct io_splice *sp = &req->splice;

	struct file *in = sp->file_in;
@@ -3890,7 +3896,7 @@ static int io_splice(struct io_kiocb *req, bool force_nonblock) 
	loff_t *poff_in, *poff_out;

	long ret = 0;



	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;



	poff_in = (sp->off_in == -1) ? NULL : &sp->off_in;
@@ -3943,13 +3949,13 @@ static int io_prep_fsync(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return 0;

}



static int io_fsync(struct io_kiocb *req, bool force_nonblock)

static int io_fsync(struct io_kiocb *req, unsigned int issue_flags)

{

	loff_t end = req->sync.off + req->sync.len;

	int ret;



	/* fsync always requires a blocking context */

	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;



	ret = vfs_fsync_range(req->file, req->sync.off,
@@ -3975,12 +3981,12 @@ static int io_fallocate_prep(struct io_kiocb *req, 
	return 0;

}



static int io_fallocate(struct io_kiocb *req, bool force_nonblock)

static int io_fallocate(struct io_kiocb *req, unsigned int issue_flags)

{

	int ret;



	/* fallocate always requiring blocking context */

	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;

	ret = vfs_fallocate(req->file, req->sync.mode, req->sync.off,

				req->sync.len);
@@ -4050,7 +4056,7 @@ static int io_openat2_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return __io_openat_prep(req, sqe);

}



static int io_openat2(struct io_kiocb *req, bool force_nonblock)

static int io_openat2(struct io_kiocb *req, unsigned int issue_flags)

{

	struct open_flags op;

	struct file *file;
@@ -4063,7 +4069,7 @@ static int io_openat2(struct io_kiocb *req, bool force_nonblock) 
		goto err;

	nonblock_set = op.open_flag & O_NONBLOCK;

	resolve_nonblock = req->open.how.resolve & RESOLVE_CACHED;

	if (force_nonblock) {

	if (issue_flags & IO_URING_F_NONBLOCK) {

		/*

		 * Don't bother trying for O_TRUNC, O_CREAT, or O_TMPFILE open,

		 * it'll always -EAGAIN
@@ -4080,7 +4086,8 @@ static int io_openat2(struct io_kiocb *req, bool force_nonblock) 


	file = do_filp_open(req->open.dfd, req->open.filename, &op);

	/* only retry if RESOLVE_CACHED wasn't already set by application */

	if ((!resolve_nonblock && force_nonblock) && file == ERR_PTR(-EAGAIN)) {

	if ((!resolve_nonblock && (issue_flags & IO_URING_F_NONBLOCK)) &&

	    file == ERR_PTR(-EAGAIN)) {

		/*

		 * We could hang on to this 'fd', but seems like marginal

		 * gain for something that is now known to be a slower path.
@@ -4094,7 +4101,7 @@ static int io_openat2(struct io_kiocb *req, bool force_nonblock) 
		put_unused_fd(ret);

		ret = PTR_ERR(file);

	} else {

		if (force_nonblock && !nonblock_set)

		if ((issue_flags & IO_URING_F_NONBLOCK) && !nonblock_set)

			file->f_flags &= ~O_NONBLOCK;

		fsnotify_open(file);

		fd_install(ret, file);
@@ -4108,9 +4115,9 @@ static int io_openat2(struct io_kiocb *req, bool force_nonblock) 
	return 0;

}



static int io_openat(struct io_kiocb *req, bool force_nonblock)

static int io_openat(struct io_kiocb *req, unsigned int issue_flags)

{

	return io_openat2(req, force_nonblock);

	return io_openat2(req, issue_flags & IO_URING_F_NONBLOCK);

}



static int io_remove_buffers_prep(struct io_kiocb *req,
@@ -4158,13 +4165,14 @@ static int __io_remove_buffers(struct io_ring_ctx *ctx, struct io_buffer *buf, 
	return i;

}



static int io_remove_buffers(struct io_kiocb *req, bool force_nonblock,

static int io_remove_buffers(struct io_kiocb *req, unsigned int issue_flags,

			     struct io_comp_state *cs)

{

	struct io_provide_buf *p = &req->pbuf;

	struct io_ring_ctx *ctx = req->ctx;

	struct io_buffer *head;

	int ret = 0;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;



	io_ring_submit_lock(ctx, !force_nonblock);
@@ -4242,13 +4250,14 @@ static int io_add_buffers(struct io_provide_buf *pbuf, struct io_buffer **head) 
	return i ? i : -ENOMEM;

}



static int io_provide_buffers(struct io_kiocb *req, bool force_nonblock,

static int io_provide_buffers(struct io_kiocb *req, unsigned int issue_flags,

			      struct io_comp_state *cs)

{

	struct io_provide_buf *p = &req->pbuf;

	struct io_ring_ctx *ctx = req->ctx;

	struct io_buffer *head, *list;

	int ret = 0;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;



	io_ring_submit_lock(ctx, !force_nonblock);
@@ -4310,12 +4319,13 @@ static int io_epoll_ctl_prep(struct io_kiocb *req, 
#endif

}



static int io_epoll_ctl(struct io_kiocb *req, bool force_nonblock,

static int io_epoll_ctl(struct io_kiocb *req, unsigned int issue_flags,

			struct io_comp_state *cs)

{

#if defined(CONFIG_EPOLL)

	struct io_epoll *ie = &req->epoll;

	int ret;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;



	ret = do_epoll_ctl(ie->epfd, ie->op, ie->fd, &ie->event, force_nonblock);

	if (force_nonblock && ret == -EAGAIN)
@@ -4347,13 +4357,13 @@ static int io_madvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
#endif

}



static int io_madvise(struct io_kiocb *req, bool force_nonblock)

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;

	int ret;



	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;



	ret = do_madvise(current->mm, ma->addr, ma->len, ma->advice);
@@ -4379,12 +4389,12 @@ static int io_fadvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return 0;

}



static int io_fadvise(struct io_kiocb *req, bool force_nonblock)

static int io_fadvise(struct io_kiocb *req, unsigned int issue_flags)

{

	struct io_fadvise *fa = &req->fadvise;

	int ret;



	if (force_nonblock) {

	if (issue_flags & IO_URING_F_NONBLOCK) {

		switch (fa->advice) {

		case POSIX_FADV_NORMAL:

		case POSIX_FADV_RANDOM:
@@ -4420,12 +4430,12 @@ static int io_statx_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return 0;

}



static int io_statx(struct io_kiocb *req, bool force_nonblock)

static int io_statx(struct io_kiocb *req, unsigned int issue_flags)

{

	struct io_statx *ctx = &req->statx;

	int ret;



	if (force_nonblock) {

	if (issue_flags & IO_URING_F_NONBLOCK) {

		/* only need file table for an actual valid fd */

		if (ctx->dfd == -1 || ctx->dfd == AT_FDCWD)

			req->flags |= REQ_F_NO_FILE_TABLE;
@@ -4455,7 +4465,7 @@ static int io_close_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return 0;

}



static int io_close(struct io_kiocb *req, bool force_nonblock,

static int io_close(struct io_kiocb *req, unsigned int issue_flags,

		    struct io_comp_state *cs)

{

	struct files_struct *files = current->files;
@@ -4485,7 +4495,7 @@ static int io_close(struct io_kiocb *req, bool force_nonblock, 
	}



	/* if the file has a flush method, be safe and punt to async */

	if (file->f_op->flush && force_nonblock) {

	if (file->f_op->flush && (issue_flags & IO_URING_F_NONBLOCK)) {

		spin_unlock(&files->file_lock);

		return -EAGAIN;

	}
@@ -4527,12 +4537,12 @@ static int io_prep_sfr(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return 0;

}



static int io_sync_file_range(struct io_kiocb *req, bool force_nonblock)

static int io_sync_file_range(struct io_kiocb *req, unsigned int issue_flags)

{

	int ret;



	/* sync_file_range always requires a blocking context */

	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;



	ret = sync_file_range(req->file, req->sync.off, req->sync.len,
@@ -4601,7 +4611,7 @@ static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return ret;

}



static int io_sendmsg(struct io_kiocb *req, bool force_nonblock,

static int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags,

		      struct io_comp_state *cs)

{

	struct io_async_msghdr iomsg, *kmsg;
@@ -4624,11 +4634,11 @@ static int io_sendmsg(struct io_kiocb *req, bool force_nonblock, 
	flags = req->sr_msg.msg_flags;

	if (flags & MSG_DONTWAIT)

		req->flags |= REQ_F_NOWAIT;

	else if (force_nonblock)

	else if (issue_flags & IO_URING_F_NONBLOCK)

		flags |= MSG_DONTWAIT;



	ret = __sys_sendmsg_sock(sock, &kmsg->msg, flags);

	if (force_nonblock && ret == -EAGAIN)

	if ((issue_flags & IO_URING_F_NONBLOCK) && ret == -EAGAIN)

		return io_setup_async_msg(req, kmsg);

	if (ret == -ERESTARTSYS)

		ret = -EINTR;
@@ -4643,7 +4653,7 @@ static int io_sendmsg(struct io_kiocb *req, bool force_nonblock, 
	return 0;

}



static int io_send(struct io_kiocb *req, bool force_nonblock,

static int io_send(struct io_kiocb *req, unsigned int issue_flags,

		   struct io_comp_state *cs)

{

	struct io_sr_msg *sr = &req->sr_msg;
@@ -4669,12 +4679,12 @@ static int io_send(struct io_kiocb *req, bool force_nonblock, 
	flags = req->sr_msg.msg_flags;

	if (flags & MSG_DONTWAIT)

		req->flags |= REQ_F_NOWAIT;

	else if (force_nonblock)

	else if (issue_flags & IO_URING_F_NONBLOCK)

		flags |= MSG_DONTWAIT;



	msg.msg_flags = flags;

	ret = sock_sendmsg(sock, &msg);

	if (force_nonblock && ret == -EAGAIN)

	if ((issue_flags & IO_URING_F_NONBLOCK) && ret == -EAGAIN)

		return -EAGAIN;

	if (ret == -ERESTARTSYS)

		ret = -EINTR;
@@ -4822,7 +4832,7 @@ static int io_recvmsg_prep(struct io_kiocb *req, 
	return ret;

}



static int io_recvmsg(struct io_kiocb *req, bool force_nonblock,

static int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags,

		      struct io_comp_state *cs)

{

	struct io_async_msghdr iomsg, *kmsg;
@@ -4830,6 +4840,7 @@ static int io_recvmsg(struct io_kiocb *req, bool force_nonblock, 
	struct io_buffer *kbuf;

	unsigned flags;

	int ret, cflags = 0;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;



	sock = sock_from_file(req->file);

	if (unlikely(!sock))
@@ -4878,7 +4889,7 @@ static int io_recvmsg(struct io_kiocb *req, bool force_nonblock, 
	return 0;

}



static int io_recv(struct io_kiocb *req, bool force_nonblock,

static int io_recv(struct io_kiocb *req, unsigned int issue_flags,

		   struct io_comp_state *cs)

{

	struct io_buffer *kbuf;
@@ -4889,6 +4900,7 @@ static int io_recv(struct io_kiocb *req, bool force_nonblock, 
	struct iovec iov;

	unsigned flags;

	int ret, cflags = 0;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;



	sock = sock_from_file(req->file);

	if (unlikely(!sock))
@@ -4948,10 +4960,11 @@ static int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return 0;

}



static int io_accept(struct io_kiocb *req, bool force_nonblock,

static int io_accept(struct io_kiocb *req, unsigned int issue_flags,

		     struct io_comp_state *cs)

{

	struct io_accept *accept = &req->accept;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;

	unsigned int file_flags = force_nonblock ? O_NONBLOCK : 0;

	int ret;
@@ -4992,12 +5005,13 @@ static int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
					&io->address);

}



static int io_connect(struct io_kiocb *req, bool force_nonblock,

static int io_connect(struct io_kiocb *req, unsigned int issue_flags,

		      struct io_comp_state *cs)

{

	struct io_async_connect __io, *io;

	unsigned file_flags;

	int ret;

	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;



	if (req->async_data) {

		io = req->async_data;
@@ -5039,13 +5053,13 @@ static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return -EOPNOTSUPP;

}



static int io_sendmsg(struct io_kiocb *req, bool force_nonblock,

static int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags,

		      struct io_comp_state *cs)

{

	return -EOPNOTSUPP;

}



static int io_send(struct io_kiocb *req, bool force_nonblock,

static int io_send(struct io_kiocb *req, unsigned int issue_flags,

		   struct io_comp_state *cs)

{

	return -EOPNOTSUPP;
@@ -5057,13 +5071,13 @@ static int io_recvmsg_prep(struct io_kiocb *req, 
	return -EOPNOTSUPP;

}



static int io_recvmsg(struct io_kiocb *req, bool force_nonblock,

static int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags,

		      struct io_comp_state *cs)

{

	return -EOPNOTSUPP;

}



static int io_recv(struct io_kiocb *req, bool force_nonblock,

static int io_recv(struct io_kiocb *req, unsigned int issue_flags,

		   struct io_comp_state *cs)

{

	return -EOPNOTSUPP;
@@ -5074,7 +5088,7 @@ static int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return -EOPNOTSUPP;

}



static int io_accept(struct io_kiocb *req, bool force_nonblock,

static int io_accept(struct io_kiocb *req, unsigned int issue_flags,

		     struct io_comp_state *cs)

{

	return -EOPNOTSUPP;
@@ -5085,7 +5099,7 @@ static int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
	return -EOPNOTSUPP;

}



static int io_connect(struct io_kiocb *req, bool force_nonblock,

static int io_connect(struct io_kiocb *req, unsigned int issue_flags,

		      struct io_comp_state *cs)

{

	return -EOPNOTSUPP;
@@ -5963,14 +5977,14 @@ static int io_rsrc_update_prep(struct io_kiocb *req, 
	return 0;

}



static int io_files_update(struct io_kiocb *req, bool force_nonblock,

static int io_files_update(struct io_kiocb *req, unsigned int issue_flags,

			   struct io_comp_state *cs)

{

	struct io_ring_ctx *ctx = req->ctx;

	struct io_uring_rsrc_update up;

	int ret;



	if (force_nonblock)

	if (issue_flags & IO_URING_F_NONBLOCK)

		return -EAGAIN;



	up.offset = req->rsrc_update.offset;
@@ -6189,7 +6203,7 @@ static void __io_clean_op(struct io_kiocb *req) 
	}

}



static int io_issue_sqe(struct io_kiocb *req, bool force_nonblock,

static int io_issue_sqe(struct io_kiocb *req, unsigned int issue_flags,

			struct io_comp_state *cs)

{

	struct io_ring_ctx *ctx = req->ctx;
@@ -6202,15 +6216,15 @@ static int io_issue_sqe(struct io_kiocb *req, bool force_nonblock, 
	case IORING_OP_READV:

	case IORING_OP_READ_FIXED:

	case IORING_OP_READ:

		ret = io_read(req, force_nonblock, cs);

		ret = io_read(req, issue_flags, cs);

		break;

	case IORING_OP_WRITEV:

	case IORING_OP_WRITE_FIXED:

	case IORING_OP_WRITE:

		ret = io_write(req, force_nonblock, cs);

		ret = io_write(req, issue_flags, cs);

		break;

	case IORING_OP_FSYNC:

		ret = io_fsync(req, force_nonblock);

		ret = io_fsync(req, issue_flags);

		break;

	case IORING_OP_POLL_ADD:

		ret = io_poll_add(req);
@@ -6219,19 +6233,19 @@ static int io_issue_sqe(struct io_kiocb *req, bool force_nonblock, 
		ret = io_poll_remove(req);

		break;

	case IORING_OP_SYNC_FILE_RANGE:

		ret = io_sync_file_range(req, force_nonblock);

		ret = io_sync_file_range(req, issue_flags);

		break;

	case IORING_OP_SENDMSG:

		ret = io_sendmsg(req, force_nonblock, cs);

		ret = io_sendmsg(req, issue_flags, cs);

		break;

	case IORING_OP_SEND:

		ret = io_send(req, force_nonblock, cs);

		ret = io_send(req, issue_flags, cs);

		break;

	case IORING_OP_RECVMSG:

		ret = io_recvmsg(req, force_nonblock, cs);

		ret = io_recvmsg(req, issue_flags, cs);

		break;

	case IORING_OP_RECV:

		ret = io_recv(req, force_nonblock, cs);

		ret = io_recv(req, issue_flags, cs);

		break;

	case IORING_OP_TIMEOUT:

		ret = io_timeout(req);
@@ -6240,61 +6254,61 @@ static int io_issue_sqe(struct io_kiocb *req, bool force_nonblock, 
		ret = io_timeout_remove(req);

		break;

	case IORING_OP_ACCEPT:

		ret = io_accept(req, force_nonblock, cs);

		ret = io_accept(req, issue_flags, cs);

		break;

	case IORING_OP_CONNECT:

		ret = io_connect(req, force_nonblock, cs);

		ret = io_connect(req, issue_flags, cs);

		break;

	case IORING_OP_ASYNC_CANCEL:

		ret = io_async_cancel(req);

		break;

	case IORING_OP_FALLOCATE:

		ret = io_fallocate(req, force_nonblock);

		ret = io_fallocate(req, issue_flags);

		break;

	case IORING_OP_OPENAT:

		ret = io_openat(req, force_nonblock);

		ret = io_openat(req, issue_flags);

		break;

	case IORING_OP_CLOSE:

		ret = io_close(req, force_nonblock, cs);

		ret = io_close(req, issue_flags, cs);

		break;

	case IORING_OP_FILES_UPDATE:

		ret = io_files_update(req, force_nonblock, cs);

		ret = io_files_update(req, issue_flags, cs);

		break;

	case IORING_OP_STATX:

		ret = io_statx(req, force_nonblock);

		ret = io_statx(req, issue_flags);

		break;

	case IORING_OP_FADVISE:

		ret = io_fadvise(req, force_nonblock);

		ret = io_fadvise(req, issue_flags);

		break;

	case IORING_OP_MADVISE:

		ret = io_madvise(req, force_nonblock);

		ret = io_madvise(req, issue_flags);

		break;

	case IORING_OP_OPENAT2:

		ret = io_openat2(req, force_nonblock);

		ret = io_openat2(req, issue_flags);

		break;

	case IORING_OP_EPOLL_CTL:

		ret = io_epoll_ctl(req, force_nonblock, cs);

		ret = io_epoll_ctl(req, issue_flags, cs);

		break;

	case IORING_OP_SPLICE:

		ret = io_splice(req, force_nonblock);

		ret = io_splice(req, issue_flags);

		break;

	case IORING_OP_PROVIDE_BUFFERS:

		ret = io_provide_buffers(req, force_nonblock, cs);

		ret = io_provide_buffers(req, issue_flags, cs);

		break;

	case IORING_OP_REMOVE_BUFFERS:

		ret = io_remove_buffers(req, force_nonblock, cs);

		ret = io_remove_buffers(req, issue_flags, cs);

		break;

	case IORING_OP_TEE:

		ret = io_tee(req, force_nonblock);

		ret = io_tee(req, issue_flags);

		break;

	case IORING_OP_SHUTDOWN:

		ret = io_shutdown(req, force_nonblock);

		ret = io_shutdown(req, issue_flags);

		break;

	case IORING_OP_RENAMEAT:

		ret = io_renameat(req, force_nonblock);

		ret = io_renameat(req, issue_flags);

		break;

	case IORING_OP_UNLINKAT:

		ret = io_unlinkat(req, force_nonblock);

		ret = io_unlinkat(req, issue_flags);

		break;

	default:

		ret = -EINVAL;
@@ -6336,7 +6350,7 @@ static void io_wq_submit_work(struct io_wq_work *work) 


	if (!ret) {

		do {

			ret = io_issue_sqe(req, false, NULL);

			ret = io_issue_sqe(req, 0, NULL);

			/*

			 * We can get EAGAIN for polled IO even though we're

			 * forcing a sync submission from here, since we can't
@@ -6499,7 +6513,7 @@ static void __io_queue_sqe(struct io_kiocb *req, struct io_comp_state *cs) 
			old_creds = override_creds(req->work.identity->creds);

	}



	ret = io_issue_sqe(req, true, cs);

	ret = io_issue_sqe(req, IO_URING_F_NONBLOCK, cs);



	/*

	 * We async punt it if the file wasn't marked NOWAIT, or if the file