diff options
| author | Anuj Gupta <anuj20.g@samsung.com> | 2022-09-30 09:27:38 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-09-30 16:49:11 +0300 |
| commit | a9216fac3ed8819cbbda5d39dd5fcaa43dfd35d8 (patch) | |
| tree | 7fcfeafad737335ed0dedcd43375932aa7221a74 /include/linux/io_uring.h | |
| parent | 851eb780decb7180bcf09fad0035cba9aae669df (diff) | |
| download | linux-a9216fac3ed8819cbbda5d39dd5fcaa43dfd35d8.tar.xz | |
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 'include/linux/io_uring.h')
| -rw-r--r-- | include/linux/io_uring.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/io_uring.h b/include/linux/io_uring.h index 58676c0a398f..1dbf51115c30 100644 --- a/include/linux/io_uring.h +++ b/include/linux/io_uring.h @@ -4,6 +4,7 @@ #include <linux/sched.h> #include <linux/xarray.h> +#include <uapi/linux/io_uring.h> enum io_uring_cmd_flags { IO_URING_F_COMPLETE_DEFER = 1, @@ -32,6 +33,8 @@ struct io_uring_cmd { }; #if defined(CONFIG_IO_URING) +int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw, + struct iov_iter *iter, void *ioucmd); void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, ssize_t res2); void io_uring_cmd_complete_in_task(struct io_uring_cmd *ioucmd, void (*task_work_cb)(struct io_uring_cmd *)); @@ -59,6 +62,11 @@ static inline void io_uring_free(struct task_struct *tsk) __io_uring_free(tsk); } #else +static int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw, + struct iov_iter *iter, void *ioucmd) +{ + return -EOPNOTSUPP; +} static inline void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, ssize_t ret2) { |