diff options
| author | Anuj Gupta <anuj20.g@samsung.com> | 2022-09-30 08:27:38 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-09-30 15:49:11 +0200 |
| commit | a9216fac3ed8819cbbda5d39dd5fcaa43dfd35d8 (patch) | |
| tree | 7fcfeafad737335ed0dedcd43375932aa7221a74 /io_uring/uring_cmd.c | |
| parent | nvme: enable batched completions of passthrough IO (diff) | |
| download | linux-a9216fac3ed8819cbbda5d39dd5fcaa43dfd35d8.tar.xz linux-a9216fac3ed8819cbbda5d39dd5fcaa43dfd35d8.zip | |
io_uring: add io_uring_cmd_import_fixed
This is a new helper that callers can use to obtain a bvec iterator for
the previously mapped buffer. This is preparatory work to enable
fixed-buffer support for io_uring_cmd.
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220930062749.152261-2-anuj20.g@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/uring_cmd.c')
| -rw-r--r-- | io_uring/uring_cmd.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c index f3ed61e9bd0f..6a6d69523d75 100644 --- a/io_uring/uring_cmd.c +++ b/io_uring/uring_cmd.c @@ -8,6 +8,7 @@ #include <uapi/linux/io_uring.h> #include "io_uring.h" +#include "rsrc.h" #include "uring_cmd.h" static void io_uring_cmd_work(struct io_kiocb *req, bool *locked) @@ -129,3 +130,12 @@ int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags) return IOU_ISSUE_SKIP_COMPLETE; } + +int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw, + struct iov_iter *iter, void *ioucmd) +{ + struct io_kiocb *req = cmd_to_io_kiocb(ioucmd); + + return io_import_fixed(rw, iter, req->imu, ubuf, len); +} +EXPORT_SYMBOL_GPL(io_uring_cmd_import_fixed); |