On 1/16/19 8:16 AM, Arnd Bergmann wrote:
> On Wed, Jan 16, 2019 at 4:12 PM Jens Axboe wrote:
>> On 1/16/19 3:41 AM, Arnd Bergmann wrote:
>>> On Tue, Jan 15, 2019 at 3:55 AM Jens Axboe wrote:
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl
b/arch/x86/entry/syscalls/syscall_32.tbl
>>
On Wed, Jan 16, 2019 at 4:12 PM Jens Axboe wrote:
> On 1/16/19 3:41 AM, Arnd Bergmann wrote:
> > On Tue, Jan 15, 2019 at 3:55 AM Jens Axboe wrote:
> >> diff --git a/arch/x86/entry/syscalls/syscall_32.tbl
> >> b/arch/x86/entry/syscalls/syscall_32.tbl
> >> index 3cf7b533b3d1..194e79c0032e 100644
>
On 1/16/19 3:41 AM, Arnd Bergmann wrote:
> On Tue, Jan 15, 2019 at 3:55 AM Jens Axboe wrote:
>>
>> diff --git a/arch/x86/entry/syscalls/syscall_32.tbl
>> b/arch/x86/entry/syscalls/syscall_32.tbl
>> index 3cf7b533b3d1..194e79c0032e 100644
>> --- a/arch/x86/entry/syscalls/syscall_32.tbl
>> +++ b/ar
On Wed, Jan 16, 2019 at 11:41 AM Arnd Bergmann wrote:
> > +/*
> > + * IO submission data structure (Submission Queue Entry)
> > + */
> > +struct io_uring_sqe {
> > + __u8opcode; /* type of operation for this sqe */
> > + __u8flags; /* as of now unused */
> > +
On Tue, Jan 15, 2019 at 3:55 AM Jens Axboe wrote:
>
> diff --git a/arch/x86/entry/syscalls/syscall_32.tbl
> b/arch/x86/entry/syscalls/syscall_32.tbl
> index 3cf7b533b3d1..194e79c0032e 100644
> --- a/arch/x86/entry/syscalls/syscall_32.tbl
> +++ b/arch/x86/entry/syscalls/syscall_32.tbl
> @@ -398,3
On 1/15/19 9:55 AM, Jens Axboe wrote:
> On 1/15/19 9:51 AM, Jonathan Corbet wrote:
>> On Mon, 14 Jan 2019 19:55:20 -0700
>> Jens Axboe wrote:
>>
>> So the [0/16] cover letter seems to have gone astray this time?
>
> It did go out, but I forgot to add a Subject line to it...
>
> https://marc.info
On 1/15/19 9:51 AM, Jonathan Corbet wrote:
> On Mon, 14 Jan 2019 19:55:20 -0700
> Jens Axboe wrote:
>
> So the [0/16] cover letter seems to have gone astray this time?
It did go out, but I forgot to add a Subject line to it...
https://marc.info/?l=linux-block&m=154752095709422&w=2
>> The subm
On Mon, 14 Jan 2019 19:55:20 -0700
Jens Axboe wrote:
So the [0/16] cover letter seems to have gone astray this time?
Anyway, a couple of minor notes/questions:
> The submission queue (SQ) and completion queue (CQ) rings are shared
> between the application and the kernel. This eliminates the ne
The submission queue (SQ) and completion queue (CQ) rings are shared
between the application and the kernel. This eliminates the need to
copy data back and forth to submit and complete IO.
IO submissions use the io_uring_sqe data structure, and completions
are generated in the form of io_uring_sqe
The submission queue (SQ) and completion queue (CQ) rings are shared
between the application and the kernel. This eliminates the need to
copy data back and forth to submit and complete IO.
IO submissions use the io_uring_sqe data structure, and completions
are generated in the form of io_uring_sqe
On 1/9/19 11:30 AM, Christoph Hellwig wrote:
> On Wed, Jan 09, 2019 at 08:53:31AM -0700, Jens Axboe wrote:
+static int io_setup_rw(int rw, const struct io_uring_iocb *iocb,
+ struct iovec **iovec, struct iov_iter *iter)
+{
+ void __user *buf = (void __user *)(ui
On Wed, Jan 09, 2019 at 08:53:31AM -0700, Jens Axboe wrote:
> >> +static int io_setup_rw(int rw, const struct io_uring_iocb *iocb,
> >> + struct iovec **iovec, struct iov_iter *iter)
> >> +{
> >> + void __user *buf = (void __user *)(uintptr_t)iocb->addr;
> >> + size_t ret;
> >> +
On 1/9/19 5:10 AM, Christoph Hellwig wrote:
>> index 293733f61594..9ef9987b4192 100644
>> --- a/fs/Makefile
>> +++ b/fs/Makefile
>> @@ -29,7 +29,7 @@ obj-$(CONFIG_SIGNALFD) += signalfd.o
>> obj-$(CONFIG_TIMERFD) += timerfd.o
>> obj-$(CONFIG_EVENTFD) += even
> index 293733f61594..9ef9987b4192 100644
> --- a/fs/Makefile
> +++ b/fs/Makefile
> @@ -29,7 +29,7 @@ obj-$(CONFIG_SIGNALFD) += signalfd.o
> obj-$(CONFIG_TIMERFD)+= timerfd.o
> obj-$(CONFIG_EVENTFD)+= eventfd.o
> obj-$(CONFIG_USERFAULTFD)+= userfa
The submission queue (SQ) and completion queue (CQ) rings are shared
between the application and the kernel. This eliminates the need to
copy data back and forth to submit and complete IO.
IO submissions use the io_uring_iocb data structure, and completions
are generated in the form of io_uring_ev
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