Hi Martin,
On 2015-09-16 3:51 PM, Martin Sustrik wrote:
> On 2015-09-16 08:27, Damian Hobson-Garcia wrote:
>>
>> Additionally, to provide a way to associate user-space state with eventfd
>> object, it allows to attach user-space data to the file descriptor.
>
> The above paragraph is a leftover f
On 2015-09-16 08:27, Damian Hobson-Garcia wrote:
From: Martin Sustrik
When implementing network protocols in user space, one has to implement
fake file descriptors to represent the sockets for the protocol.
Polling on such fake file descriptors is a problem (poll/select/epoll
accept only true
On 14/02/13 23:54, Andrew Morton wrote:
This patch adds userspace interfaces which will require manpage
updates. Please Cc Michael and work with him on getting those changes
completed.
Right. It adds the efd_mask structure. As far as I understand how it
works is that the actual user-space de
On 14/02/13 23:54, Andrew Morton wrote:
+/* On x86-64 keep the same binary layout as on i386. */
+#ifdef __x86_64__
+#define EVENTFD_MASK_PACKED __packed
+#else
+#define EVENTFD_MASK_PACKED
+#endif
+
+struct eventfd_mask {
+ __u32 events;
+ __u64 data;
+} EVENTFD_MASK_PACKED;
The
On 15/02/13 18:32, Andy Lutomirski wrote:
On Thu, Feb 14, 2013 at 9:24 PM, Andrew Morton
wrote:
On Fri, 15 Feb 2013 04:42:27 +0100 Martin Sustrik wrote:
This is a non-back-compatible userspace interface change. A procfs
file which previously displayed
eventfd-count:
can now als
On Thu, Feb 14, 2013 at 9:24 PM, Andrew Morton
wrote:
> On Fri, 15 Feb 2013 04:42:27 +0100 Martin Sustrik wrote:
>
>> > This is a non-back-compatible userspace interface change. A procfs
>> > file which previously displayed
>> >
>> > eventfd-count:
>> >
>> > can now also display
>> >
>>
On Fri, 15 Feb 2013 04:42:27 +0100 Martin Sustrik wrote:
> > This is a non-back-compatible userspace interface change. A procfs
> > file which previously displayed
> >
> > eventfd-count:
> >
> > can now also display
> >
> > eventfd-mask:
> >
> > So existing userspace could misb
Hi Andrew,
Thanks for the detailed code review! I'll have a look at all the
problems you've pointed out, however, one quick question:
- ret = seq_printf(m, "eventfd-count: %16llx\n",
-(unsigned long long)ctx->count);
+ if (ctx->flags& EFD_MASK) {
+
On Thu, Feb 14, 2013 at 2:54 PM, Andrew Morton
wrote:
> On Fri, 8 Feb 2013 09:11:17 +0100
> Martin Sustrik wrote:
>
>> When implementing network protocols in user space, one has to implement
>> fake user-space file descriptors to represent the sockets for the protocol.
>
>> if (count < si
On Fri, 8 Feb 2013 09:11:17 +0100
Martin Sustrik wrote:
> When implementing network protocols in user space, one has to implement
> fake user-space file descriptors to represent the sockets for the protocol.
>
> While all the BSD socket API functionality for such descriptors may be faked
> as
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