Re: [PATCH 32/32] aio: implement io_pgetevents

From: Jeff Moyer
Date: Wed Jan 17 2018 - 08:51:38 EST


Christoph Hellwig <hch@xxxxxx> writes:

> On Tue, Jan 16, 2018 at 07:41:24PM -0500, Jeff Moyer wrote:
>> I'd be willing to bet the issue is in your io_syscall6 implementation.
>> You pass in arg5 where arg6 should be used. Don't feel bad, it took me
>> the better part of today to figure that out. :)
>>
>> Here's an incremental diff on top of what you've posted. Feel free to
>> fold it into your patch (and format however you like). You can find the
>> libaio changes in my 'aio-poll' branch:
>> https://pagure.io/libaio/commits/aio-poll
>>
>> These changes were run through the libaio test harness, 64 bit and 32
>> bit, so the compat system call was tested.
>
> Oops, yes. Although I prefer the copy_from_user version, this is what
> I had:

Much cleaner.

Thanks!
Jeff