Re: [RFC PATCH 07/13] fs/userfaultfd: support read_iter to use io_uring

2020-11-30 Thread Nadav Amit
> On Nov 30, 2020, at 10:20 AM, Jens Axboe wrote: > > On 11/28/20 5:45 PM, Nadav Amit wrote: >> From: Nadav Amit >> >> iouring with userfaultfd cannot currently be used fixed buffers since >> userfaultfd does not provide read_iter(). This is required to allow >> asynchronous (queued) reads from

Re: [RFC PATCH 07/13] fs/userfaultfd: support read_iter to use io_uring

2020-11-30 Thread Jens Axboe
On 11/28/20 5:45 PM, Nadav Amit wrote: > From: Nadav Amit > > iouring with userfaultfd cannot currently be used fixed buffers since > userfaultfd does not provide read_iter(). This is required to allow > asynchronous (queued) reads from userfaultfd. > > To support async-reads of userfaultfd prov

[RFC PATCH 07/13] fs/userfaultfd: support read_iter to use io_uring

2020-11-28 Thread Nadav Amit
From: Nadav Amit iouring with userfaultfd cannot currently be used fixed buffers since userfaultfd does not provide read_iter(). This is required to allow asynchronous (queued) reads from userfaultfd. To support async-reads of userfaultfd provide read_iter() instead of read(). Cc: Jens Axboe C