On 04/03/2020 02:50, Jens Axboe wrote: > This allows a chain link to set ->fd to IOSQE_FD_LAST_OPEN, which will > then be turned into the results from the last open (or accept) request > in the chain. If no open has been done, this isn't valid and the request > will be errored with -EBADF. > > With this, we can define chains of open+read+close, where the read and > close part can work on the fd instantiated by the open request. > > Totally a work in progress, POC so far. I'm concerned of having and supporting all these IOSQE flavours. Isn't it the thing that can be potentially done with eBPF? -- Pavel Begunkov
