From e0c5c576d5074b5bb7b1b4b59848c25ceb521331 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 12 Mar 2019 10:18:47 -0600 Subject: [PATCH] io_uring: make io_read/write return an integer The callers all convert to an integer, and we only return 0/-ERROR anyway. Signed-off-by: Jens Axboe --- fs/io_uring.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index 9071fca..caf39663 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -893,7 +893,7 @@ static int io_import_iovec(struct io_ring_ctx *ctx, int rw, opcode = READ_ONCE(sqe->opcode); if (opcode == IORING_OP_READ_FIXED || opcode == IORING_OP_WRITE_FIXED) { - ssize_t ret = io_import_fixed(ctx, rw, sqe, iter); + int ret = io_import_fixed(ctx, rw, sqe, iter); *iovec = NULL; return ret; } @@ -951,15 +951,15 @@ static void io_async_list_note(int rw, struct io_kiocb *req, size_t len) async_list->io_end = io_end; } -static ssize_t io_read(struct io_kiocb *req, const struct sqe_submit *s, - bool force_nonblock, struct io_submit_state *state) +static int io_read(struct io_kiocb *req, const struct sqe_submit *s, + bool force_nonblock, struct io_submit_state *state) { struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs; struct kiocb *kiocb = &req->rw; struct iov_iter iter; struct file *file; size_t iov_count; - ssize_t ret; + int ret; ret = io_prep_rw(req, s, force_nonblock, state); if (ret) @@ -1004,15 +1004,15 @@ out_fput: return ret; } -static ssize_t io_write(struct io_kiocb *req, const struct sqe_submit *s, - bool force_nonblock, struct io_submit_state *state) +static int io_write(struct io_kiocb *req, const struct sqe_submit *s, + bool force_nonblock, struct io_submit_state *state) { struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs; struct kiocb *kiocb = &req->rw; struct iov_iter iter; struct file *file; size_t iov_count; - ssize_t ret; + int ret; ret = io_prep_rw(req, s, force_nonblock, state); if (ret) @@ -1396,8 +1396,7 @@ static int __io_submit_sqe(struct io_ring_ctx *ctx, struct io_kiocb *req, const struct sqe_submit *s, bool force_nonblock, struct io_submit_state *state) { - ssize_t ret; - int opcode; + int ret, opcode; if (unlikely(s->index >= ctx->sq_entries)) return -EINVAL; @@ -1623,7 +1622,7 @@ static int io_submit_sqe(struct io_ring_ctx *ctx, struct sqe_submit *s, struct io_submit_state *state) { struct io_kiocb *req; - ssize_t ret; + int ret; /* enforce forwards compatibility on users */ if (unlikely(s->sqe->flags & ~IOSQE_FIXED_FILE)) -- 2.7.4