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io_uring: support CQE32 for nop operation

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This adds support for filling the extra1 and extra2 fields for large
CQE's.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-13-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Stefan Roesch 2022-04-26 11:21:34 -07:00 committed by Jens Axboe
parent 76c68fbf1a
commit 2bb04df7c2
1 changed files with 26 additions and 2 deletions
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28
fs/io_uring.c
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@ -767,6 +767,12 @@ struct io_msg {
u32 len;
};
struct io_nop {
struct file *file;
u64 extra1;
u64 extra2;
};
struct io_async_connect {
struct sockaddr_storage address;
};
@ -965,6 +971,7 @@ struct io_kiocb {
struct io_msg msg;
struct io_xattr xattr;
struct io_socket sock;
struct io_nop nop;
};
u8 opcode;
@ -5040,12 +5047,29 @@ static int io_splice(struct io_kiocb *req, unsigned int issue_flags)
return 0;
}
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;
}
/*
* IORING_OP_NOP just posts a completion event, nothing else.
*/
static int io_nop(struct io_kiocb *req, unsigned int issue_flags)
{
__io_req_complete(req, issue_flags, 0, 0);
if (!(req->ctx->flags & IORING_SETUP_CQE32))
__io_req_complete(req, issue_flags, 0, 0);
else
__io_req_complete32(req, issue_flags, 0, 0, req->nop.extra1,
req->nop.extra2);
return 0;
}
@ -7647,7 +7671,7 @@ static int io_req_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
switch (req->opcode) {
case IORING_OP_NOP:
return 0;
return io_nop_prep(req, sqe);
case IORING_OP_READV:
case IORING_OP_READ_FIXED:
case IORING_OP_READ: