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authorPavel Begunkov <asml.silence@gmail.com>2022-06-14 18:51:16 +0200
committerJens Axboe <axboe@kernel.dk>2022-06-14 18:57:40 +0200
commit8899ce4b2f7364a90e3b9cf332dfd9993c61f46c (patch)
treefbc5b26203d9251e5e61731cae4b4f466b3f97f2 /fs/io_uring.c
parentMerge branch 'io_uring/io_uring-5.19' of https://github.com/isilence/linux in... (diff)
downloadlinux-8899ce4b2f7364a90e3b9cf332dfd9993c61f46c.tar.xz
linux-8899ce4b2f7364a90e3b9cf332dfd9993c61f46c.zip
Revert "io_uring: support CQE32 for nop operation"
This reverts commit 2bb04df7c2af9dad5d28771c723bc39b01cf7df4. CQE32 nops were used for debugging and benchmarking but it doesn't target any real use case. Revert it, we can return it back if someone finds a good way to use it. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/5ff623d84ccb4b3f3b92a3ea41cdcfa612f3d96f.1655224415.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to '')
-rw-r--r--fs/io_uring.c21
1 files changed, 1 insertions, 20 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index ca6170a66e62..bf556f77d4ab 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -784,12 +784,6 @@ struct io_msg {
u32 len;
};
-struct io_nop {
- struct file *file;
- u64 extra1;
- u64 extra2;
-};
-
struct io_async_connect {
struct sockaddr_storage address;
};
@@ -994,7 +988,6 @@ struct io_kiocb {
struct io_msg msg;
struct io_xattr xattr;
struct io_socket sock;
- struct io_nop nop;
struct io_uring_cmd uring_cmd;
};
@@ -5268,14 +5261,6 @@ done:
static int io_nop_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- /*
- * If the ring is setup with CQE32, relay back addr/addr
- */
- if (req->ctx->flags & IORING_SETUP_CQE32) {
- req->nop.extra1 = READ_ONCE(sqe->addr);
- req->nop.extra2 = READ_ONCE(sqe->addr2);
- }
-
return 0;
}
@@ -5296,11 +5281,7 @@ static int io_nop(struct io_kiocb *req, unsigned int issue_flags)
}
cflags = io_put_kbuf(req, issue_flags);
- if (!(req->ctx->flags & IORING_SETUP_CQE32))
- __io_req_complete(req, issue_flags, 0, cflags);
- else
- __io_req_complete32(req, issue_flags, 0, cflags,
- req->nop.extra1, req->nop.extra2);
+ __io_req_complete(req, issue_flags, 0, cflags);
return 0;
}