Davide Libenzi wrote:
On Tue, 1 May 2007, Andrew Morton wrote:
David, could you provide some feedback please? The patches are stunningly
free of comments, but you used to do that to me pretty often so my sympathy
is limited ;)
You bastard! :)
Ok, from a brief look ...
[general]
The code adds an extra indirection over the already existing
file_operations, that IMO already sufficently abstract a file.
The compat code, if I read it correctly, does not support files crossing
32/64 bits boundaries (exec or SCM_RIGHTS).
The compat code is not already finished, I plan to address compat
code on the next version.
[timers]
Returns a structure instead of a 32 bit counter (ala timerfd), and needs
extra compat code.
Yes, but the compat code will be quite small.
[signal]
All the discussions that went on for signalfd has been lost. It pins the
task struct and it does not handle process detach signaling.
No, I just went into a different direction.
[aio]
I prefer a signaling-only approach like the 20 lines patch I posted, and
use the standard AIO calls to fetch results. This code simply wraps AIO
calls. This is just my opinions of course, and others may disagree.
The write()/read() wraps are just for the sake of completeness. The import
part is the poll().
[futex]
I intentionally stayed out of there after all the talks about futexfd
being killed due to the impossibility of getting an interface right (did
not follow the talk, so I can't tell the level of BS contained in the
previous statement). We also have a nice printk in there, with the first
kill-on deadline that ever made mainline :)
Yes, i was more daring (or crazy). The plfutex is so simple, i don't
know why we can't get it right. It's just a _event_ (address/value).
--
Davi Arnaut
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