|| ||Mathieu Desnoyers <email@example.com>|
|| ||firstname.lastname@example.org, email@example.com|
|| ||[patch for 2.6.26 0/7] Architecture Independent Markers|
|| ||Thu, 27 Mar 2008 09:20:57 -0400|
After a few RFC rounds, I propose these markers for 2.6.26. They include
work done after comments from the memory management community. Most of them have
been used by the LTTng project for about 2 years.
The first patch in the patchset does a small addition to the markers API : it
allows marker sites to declare a _trace_mark marker. I forces use of a marker
which does not rely on an instruction modification mechanism to enable itself.
It's required in some kernel code paths (lockdep, printk, some traps, __init and
__exit code). I would prefer to get this in before the immediate values, since
the immediate values optimization, which depends on the rework of x86
alternatives, paravirt and kprobes currently being merged, takes longer than
I do not expect this marker set to cover every bits of the kernel (and this is
not its purpose). It's just a good start that has proven to be very useful to
the LTTng community in the past 2 years.
This patchset applies over 2.6.25-rc7 in this order :
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
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