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).
[timers]
Returns a structure instead of a 32 bit counter (ala timerfd), and needs
extra compat code.
[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.
[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.
[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 :)
printk(KERN_WARNING "Process `%s' used FUTEX_FD, which "
"will be removed from the kernel in June 2007\n",
current->comm);
- Davide
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