[PATCH v6 00/10] x86/alternative: text_poke() fixes

Nadav Amit namit at vmware.com
Mon Nov 26 17:46:09 UTC 2018


> On Nov 26, 2018, at 2:32 AM, Peter Zijlstra <peterz at infradead.org> wrote:
> 
> On Tue, Nov 20, 2018 at 12:35:35PM -0800, Nadav Amit wrote:
> 
>> Nadav Amit (9):
>>  Fix "x86/alternatives: Lockdep-enforce text_mutex in text_poke*()"
>>  x86/jump_label: Use text_poke_early() during early init
>>  fork: provide a function for copying init_mm
>>  x86/alternative: initializing temporary mm for patching
>>  x86/alternative: use temporary mm for text poking
>>  x86/kgdb: avoid redundant comparison of patched code
>>  x86: avoid W^X being broken during modules loading
>>  x86/jump-label: remove support for custom poker
>>  x86/alternative: remove the return value of text_poke_*()
>> 
>> arch/x86/include/asm/fixmap.h        |   2 -
>> arch/x86/include/asm/mmu_context.h   |  32 +++++
>> arch/x86/include/asm/pgtable.h       |   3 +
>> arch/x86/include/asm/text-patching.h |   7 +-
>> arch/x86/kernel/alternative.c        | 197 ++++++++++++++++++++-------
>> arch/x86/kernel/jump_label.c         |  19 ++-
>> arch/x86/kernel/kgdb.c               |  25 +---
>> arch/x86/kernel/module.c             |   2 +-
>> arch/x86/mm/init_64.c                |  35 +++++
>> arch/x86/xen/mmu_pv.c                |   2 -
>> include/linux/filter.h               |   6 +
>> include/linux/sched/task.h           |   1 +
>> init/main.c                          |   3 +
>> kernel/fork.c                        |  24 +++-
>> kernel/module.c                      |  10 ++
>> 15 files changed, 279 insertions(+), 89 deletions(-)
> 
> Thanks Nadav!
> 
> Acked-by: Peter Zijlstra (Intel) <peterz at infradead.org>

No problem, Peter.

One small request - on [02/10], since after your review the patch changed to
be the single line that you provided, I set you as a co-developer. IIUC this
requires your signed-off-by.

Thanks again for all the reviews and the help.




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