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SubjectRe: [PATCH 0/2] jump label: update for .39
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On Wed, 2011-03-09 at 15:47 -0500, Jason Baron wrote:
> Hi,
>
> Re-fresh of updates against latest -tip tree.

Thanks Jason,

I started looking at them, I should have comments tomorrow (if I have
any comments ;)

>
> I've tried to split this update up somewhat, but I've only succeeded to split
> out the dynamic debug bits. The interface changes and re-write are quite
> intertwined.
>
> I believe this update should address all the comments from the previous posting
> except for Mathieu's request for a section of jump label pointers that point to
> the jump label structures (since the compiler might leave gaps in the jump label
> structures).

The jump label structures is a list of 3 pointers, correct? I doubt that
gcc would place any holes in it as they are ahl aligned by natural word
size.

> I've got a prototype patch to address this issue but its somewhat
> invasive, and thus I'd like to leave it as a follow-up item. I have to date,
> not seen this issue in practice.
>
> thanks,
>
> -Jason
>
>
> Jason Baron (2):
> jump label: introduce static_branch() interface
> dynamic debug: add jump label support
>
> arch/mips/include/asm/jump_label.h | 22 +-
> arch/mips/kernel/jump_label.c | 2 +-

Could we get Ralf's acked-by for the mips code.

> arch/sparc/include/asm/jump_label.h | 25 +-

Could we get David Miller's Acked-by for sparc.

Thanks,

-- Steve

> arch/x86/include/asm/alternative.h | 3 +-
> arch/x86/include/asm/jump_label.h | 26 +-
> arch/x86/kernel/alternative.c | 2 +-
> arch/x86/kernel/jump_label.c | 2 +-
> arch/x86/kernel/module.c | 1 +
> include/asm-generic/vmlinux.lds.h | 14 +-
> $include/linux/dynamic_debug.h | 44 +++-
> include/linux/jump_label.h | 86 ++++---
> include/linux/jump_label_ref.h | 44 ---
> include/linux/perf_event.h | 26 +-
> include/linux/tracepoint.h | 22 +-
> kernel/jump_label.c | 537 ++++++++++++++---------------------
> kernel/perf_event.c | 4 +-
> kernel/tracepoint.c | 23 +-
> lib/dynamic_debug.c | 4 +-
> 18 files changed, 391 insertions(+), 496 deletions(-)
> delete mode 100644 include/linux/jump_label_ref.h




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