Re: [PATCHSET v2 0/3] Add support for multishot reads

[Gabriel Krisman Bertazi <krisman@suse.de>]

Jens Axboe <axboe@kernel.dk> writes:

> Hi,
>
> We support multishot for other request types, generally in the shape of
> a flag for the request. Doing a flag based approach with reads isn't
> straightforward, as the read/write flags are in the RWF_ space. Instead,
> add a separate opcode for this, IORING_OP_READ_MULTISHOT.
>
> This can only be used provided buffers, like other multishot request
> types that read/receive data.
>
> It can also only be used for pollable file types, like a tun device or
> pipes, for example. File types that are always readable (or seekable),
> like regular files, cannot be used with multishot reads.
>
> This is based on the io_uring-futex branch (which, in turn, is based on
> the io_uring-waitid branch). No dependencies as such between them,
> except the opcode numbering.
>
> Can also be found here:
>
> https://git.kernel.dk/cgit/linux/log/?h=io_uring-mshot-read
>
> and there's a liburing branch with some basic support and some test
> cases here:
>
> https://git.kernel.dk/cgit/liburing/log/?h=read-mshot

Hey Jens,

For the entire series, feel free to take:

Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>


-- 
Gabriel Krisman Bertazi