diff options
| author | Stefan Roesch <shr@fb.com> | 2022-04-26 21:21:34 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-05-09 15:35:34 +0300 |
| commit | 2bb04df7c2af9dad5d28771c723bc39b01cf7df4 (patch) | |
| tree | 31cceb4869fe1aac0d8a06db9536fe47486b0272 /fs/io_uring.c | |
| parent | 76c68fbf1a1f97afed0c8f680ee4e3f4da3e720d (diff) | |
| download | linux-2bb04df7c2af9dad5d28771c723bc39b01cf7df4.tar.xz | |
io_uring: support CQE32 for nop operation
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>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 2b08bf54bc23..ceaf7826ed71 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -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 @@ done: 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: |