diff options
| author | Jens Axboe <axboe@kernel.dk> | 2024-10-29 07:50:56 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-11-02 15:45:30 -0600 |
| commit | c1329532d5aabecf79788924941afb8a7b7c1024 (patch) | |
| tree | 2da3518fc3cb679aaee5e6b2b9dc58486df063b7 /include/uapi/linux/io_uring.h | |
| parent | b16e920a1909da6799c43000db730d8fcdcae907 (diff) | |
io_uring/rsrc: allow cloning with node replacements
Currently cloning a buffer table will fail if the destination already has
a table. But it should be possible to use it to replace existing elements.
Add a IORING_REGISTER_DST_REPLACE cloning flag, which if set, will allow
the destination to already having a buffer table. If that is the case,
then entries designated by offset + nr buffers will be replaced if they
already exist.
Note that it's allowed to use IORING_REGISTER_DST_REPLACE and not have
an existing table, in which case it'll work just like not having the
flag set and an empty table - it'll just assign the newly created table
for that case.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux/io_uring.h')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index cc8dbe78c126..ce58c4590de6 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -713,7 +713,8 @@ struct io_uring_clock_register { }; enum { - IORING_REGISTER_SRC_REGISTERED = 1, + IORING_REGISTER_SRC_REGISTERED = (1U << 0), + IORING_REGISTER_DST_REPLACE = (1U << 1), }; struct io_uring_clone_buffers { |