drepper at redhat.com
Fri Jun 27 20:33:37 PDT 2008
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Roland Dreier wrote:
> > dev_nr = $file->f_dentry->d_inode->i_sb->s_de
> in addition to showing the level of sophistication required to write the
That's the level sysadmins are never to experience. Tapsets can provide
a completely abstract and much easier to use interface.
Also, we are trying to get the marker functionality into the kernel
which can make things easier and removes for some things the requirement
to have debug information.
> Just think about the havoc that changes like
> "remove struct class_device" would cause for out-of-tree tracing hooks.
The systemtap language can handle this. There is some preprocessor
Of course there is the problem of actually updating the code. I would
be more than happy to see the systemtap scripts to be shipped with the
kernel so that they can be updated along with the kernel sources.
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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