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From: Dylan Yudaken <[email protected]>
To: <[email protected]>
Cc: <[email protected]>, <[email protected]>, <[email protected]>,
	Dylan Yudaken <[email protected]>
Subject: [PATCH 1/3] io_uring: add io_uring_get_opcode
Date: Mon, 25 Apr 2022 02:36:11 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

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 <[email protected]>
---
 fs/io_uring.c            | 91 ++++++++++++++++++++++++++++++++++++++++
 include/linux/io_uring.h |  5 +++
 2 files changed, 96 insertions(+)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index e57d47a23682..326695f74b93 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1255,6 +1255,97 @@ static struct kmem_cache *req_cachep;
 
 static const struct file_operations io_uring_fops;
 
+const char *io_uring_get_opcode(u8 opcode)
+{
+	switch (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 "LAST";
+	}
+	return "UNKNOWN";
+}
+
 struct sock *io_uring_get_socket(struct file *file)
 {
 #if defined(CONFIG_UNIX)
diff --git a/include/linux/io_uring.h b/include/linux/io_uring.h
index 1814e698d861..24651c229ed2 100644
--- a/include/linux/io_uring.h
+++ b/include/linux/io_uring.h
@@ -10,6 +10,7 @@ struct sock *io_uring_get_socket(struct file *file);
 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(void)
 static inline void io_uring_free(struct task_struct *tsk)
 {
 }
+static inline const char *io_uring_get_opcode(u8 opcode)
+{
+	return "";
+}
 #endif
 
 #endif
-- 
2.30.2



  reply	other threads:[~2022-04-25  9:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-25  9:36 [PATCH 0/3] text representation of opcode in trace Dylan Yudaken
2022-04-25  9:36 ` Dylan Yudaken [this message]
2022-04-25 12:38   ` [PATCH 1/3] io_uring: add io_uring_get_opcode Jens Axboe
2022-04-25  9:36 ` [PATCH 2/3] io_uring: rename op -> opcode Dylan Yudaken
2022-04-25  9:36 ` [PATCH 3/3] io_uring: use the text representation of ops in trace Dylan Yudaken

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