lkml.org 
[lkml]   [2013]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH 2/3] perf: Add persistent event facilities
Hi,

On Mon, Mar 18, 2013 at 06:13:58PM +0900, Namhyung Kim wrote:
> > -static void ring_buffer_put(struct ring_buffer *rb)
> > +void perf_ring_buffer_put(struct ring_buffer *rb)
>
> Why did you rename this function?

Yeah, actually that's not needed.

However, the perf ring buffer function naming is kinda inconsistent:

ring_buffer_*
rb_*

Since we're keeping those internal to perf, they maybe should have the
same prefix, no?

I vote for "rb_" because it is shorter. :)

> > + err_event_file:
> > + perf_event_release_kernel(event);
>
> It needs to reset event to ERR_PTR(-ENOMEM) ?

Yeah, the error path in this function is kinda clumsy, I'll do some more
staring at how to make it simpler/better.

[ … ]

> > + __list_del(desc->plist.prev, desc->plist.next);
>
> Why not using list_del(&desc->plist) ?

Will do.

[ … ]

> > + err_event_file:
> > + put_unused_fd(event_fd);
>
> Isn't it safe to have event_fd of -1 in case not found? Anyway, if
> it's returned to the user space directly, it's better having more
> meaningful error code IMHO.

Yeah, I rewrote that one in the meantime to use a helper and it is
cleaner now.

Thanks for the review!

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2013-03-18 13:42    [W:0.140 / U:0.956 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site