lkml.org 
[lkml]   [2009]   [Dec]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/2] perf lock: Fix output of tracing lock events

* Peter Zijlstra <peterz@infradead.org> wrote:

> > TP_STRUCT__entry(
> > + __field(struct lockdep_map *, lockdep_addr)
> > __field(unsigned int, flags)
> > __string(name, lock->name)
> > ),
>
> I feel a bit awkward explicitly leaking kernel pointers like that. All this
> is accessible by root only (for now) so its not too harmfull, but sitll.

What would you suggest as a 'natural lock class key'? The name? It might not
be unique enough.

Other kernel objects like tasks, cpus, inodes, pages all have some natural key
that isnt a kernel pointer - but locks are a bit special.

Ingo


\
 
 \ /
  Last update: 2009-12-17 11:11    [W:0.295 / U:0.364 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site