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io_uring: move nop into its own file

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Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2022-05-24 11:56:42 -06:00
parent 5e2a18d93f
commit e28683bdfc
4 changed files with 32 additions and 15 deletions
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2
io_uring/Makefile
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@ -2,5 +2,5 @@
# #
# Makefile for io_uring # Makefile for io_uring
obj-$(CONFIG_IO_URING) += io_uring.o xattr.o obj-$(CONFIG_IO_URING) += io_uring.o xattr.o nop.o
obj-$(CONFIG_IO_WQ) += io-wq.o obj-$(CONFIG_IO_WQ) += io-wq.o

15
io_uring/io_uring.c
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@ -93,6 +93,7 @@
#include "io_uring.h" #include "io_uring.h"
#include "xattr.h" #include "xattr.h"
#include "nop.h"
#define IORING_MAX_ENTRIES 32768 #define IORING_MAX_ENTRIES 32768
#define IORING_MAX_CQ_ENTRIES (2 * IORING_MAX_ENTRIES) #define IORING_MAX_CQ_ENTRIES (2 * IORING_MAX_ENTRIES)
@ -4298,20 +4299,6 @@ done:
return IOU_OK; return IOU_OK;
} }
static int io_nop_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
return 0;
}
/*
* IORING_OP_NOP just posts a completion event, nothing else.
*/
static int io_nop(struct io_kiocb *req, unsigned int issue_flags)
{
io_req_set_res(req, 0, 0);
return IOU_OK;
}
static int io_msg_ring_prep(struct io_kiocb *req, static int io_msg_ring_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe) const struct io_uring_sqe *sqe)
{ {

26
io_uring/nop.c Normal file
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@ -0,0 +1,26 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/io_uring.h>
#include <uapi/linux/io_uring.h>
#include "io_uring_types.h"
#include "io_uring.h"
#include "nop.h"
int io_nop_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
return 0;
}
/*
* IORING_OP_NOP just posts a completion event, nothing else.
*/
int io_nop(struct io_kiocb *req, unsigned int issue_flags)
{
io_req_set_res(req, 0, 0);
return IOU_OK;
}

4
io_uring/nop.h Normal file
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@ -0,0 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
int io_nop_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_nop(struct io_kiocb *req, unsigned int issue_flags);