From 33337d03f04f9ea3a50ac2d3490a5d7a3ba9be82 Mon Sep 17 00:00:00 2001
From: Dylan Yudaken <dylany@fb.com>
Date: Tue, 26 Apr 2022 01:29:05 -0700
Subject: [PATCH] io_uring: add io_uring_get_opcode
Git-commit: 33337d03f04f9ea3a50ac2d3490a5d7a3ba9be82
Patch-mainline: v5.19-rc1
References: bsc#1205205
In some debug scenarios it is useful to have the text representation of
the opcode. Add this function in preparation.
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220426082907.3600028-3-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
fs/io_uring.c | 91 +++++++++++++++++++++++++++++++++++++++++++++++
include/linux/io_uring.h | 5 ++
2 files changed, 96 insertions(+)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1222,6 +1222,97 @@ static struct kmem_cache *req_cachep;
static const struct file_operations io_uring_fops;
+const char *io_uring_get_opcode(u8 opcode)
+{
+ switch ((enum io_uring_op)opcode) {
+ case IORING_OP_NOP:
+ return "NOP";
+ case IORING_OP_READV:
+ return "READV";
+ case IORING_OP_WRITEV:
+ return "WRITEV";
+ case IORING_OP_FSYNC:
+ return "FSYNC";
+ case IORING_OP_READ_FIXED:
+ return "READ_FIXED";
+ case IORING_OP_WRITE_FIXED:
+ return "WRITE_FIXED";
+ case IORING_OP_POLL_ADD:
+ return "POLL_ADD";
+ case IORING_OP_POLL_REMOVE:
+ return "POLL_REMOVE";
+ case IORING_OP_SYNC_FILE_RANGE:
+ return "SYNC_FILE_RANGE";
+ case IORING_OP_SENDMSG:
+ return "SENDMSG";
+ case IORING_OP_RECVMSG:
+ return "RECVMSG";
+ case IORING_OP_TIMEOUT:
+ return "TIMEOUT";
+ case IORING_OP_TIMEOUT_REMOVE:
+ return "TIMEOUT_REMOVE";
+ case IORING_OP_ACCEPT:
+ return "ACCEPT";
+ case IORING_OP_ASYNC_CANCEL:
+ return "ASYNC_CANCEL";
+ case IORING_OP_LINK_TIMEOUT:
+ return "LINK_TIMEOUT";
+ case IORING_OP_CONNECT:
+ return "CONNECT";
+ case IORING_OP_FALLOCATE:
+ return "FALLOCATE";
+ case IORING_OP_OPENAT:
+ return "OPENAT";
+ case IORING_OP_CLOSE:
+ return "CLOSE";
+ case IORING_OP_FILES_UPDATE:
+ return "FILES_UPDATE";
+ case IORING_OP_STATX:
+ return "STATX";
+ case IORING_OP_READ:
+ return "READ";
+ case IORING_OP_WRITE:
+ return "WRITE";
+ case IORING_OP_FADVISE:
+ return "FADVISE";
+ case IORING_OP_MADVISE:
+ return "MADVISE";
+ case IORING_OP_SEND:
+ return "SEND";
+ case IORING_OP_RECV:
+ return "RECV";
+ case IORING_OP_OPENAT2:
+ return "OPENAT2";
+ case IORING_OP_EPOLL_CTL:
+ return "EPOLL_CTL";
+ case IORING_OP_SPLICE:
+ return "SPLICE";
+ case IORING_OP_PROVIDE_BUFFERS:
+ return "PROVIDE_BUFFERS";
+ case IORING_OP_REMOVE_BUFFERS:
+ return "REMOVE_BUFFERS";
+ case IORING_OP_TEE:
+ return "TEE";
+ case IORING_OP_SHUTDOWN:
+ return "SHUTDOWN";
+ case IORING_OP_RENAMEAT:
+ return "RENAMEAT";
+ case IORING_OP_UNLINKAT:
+ return "UNLINKAT";
+ case IORING_OP_MKDIRAT:
+ return "MKDIRAT";
+ case IORING_OP_SYMLINKAT:
+ return "SYMLINKAT";
+ case IORING_OP_LINKAT:
+ return "LINKAT";
+ case IORING_OP_MSG_RING:
+ return "MSG_RING";
+ case IORING_OP_LAST:
+ return "INVALID";
+ }
+ return "INVALID";
+}
+
struct sock *io_uring_get_socket(struct file *file)
{
#if defined(CONFIG_UNIX)
--- a/include/linux/io_uring.h
+++ b/include/linux/io_uring.h
@@ -10,6 +10,7 @@ struct sock *io_uring_get_socket(struct
void __io_uring_cancel(bool cancel_all);
void __io_uring_free(struct task_struct *tsk);
void io_uring_unreg_ringfd(void);
+const char *io_uring_get_opcode(u8 opcode);
static inline void io_uring_files_cancel(void)
{
@@ -42,6 +43,10 @@ static inline void io_uring_files_cancel
static inline void io_uring_free(struct task_struct *tsk)
{
}
+static inline const char *io_uring_get_opcode(u8 opcode)
+{
+ return "";
+}
#endif
#endif