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Subject[PATCH 0/7] livepatch,module: Remove .klp.arch and module_disable_ro()
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Better late than never, these patches add simplifications and
improvements for some issues Peter found six months ago, as part of his
non-writable text code (W^X) cleanups.

Highlights:

- Remove the livepatch arch-specific .klp.arch sections, which were used
to do paravirt patching and alternatives patching for livepatch
replacement code.

- Add support for jump labels in patched code.

- Remove the last module_disable_ro() usage.

For more background, see this thread:

https://lkml.kernel.org/r/20191021135312.jbbxsuipxldocdjk@treble

I've tested this with a modified kpatch-build:

https://github.com/jpoimboe/kpatch/tree/no-klp-arch

(I'm planning to submit a github PR for kpatch-build, once I get
the updated unit/integration tests sorted out.


Josh Poimboeuf (4):
livepatch: Apply vmlinux-specific KLP relocations early
livepatch: Prevent module-specific KLP rela sections from referencing
vmlinux symbols
livepatch: Remove module_disable_ro() usage
module: Remove module_disable_ro()

Peter Zijlstra (3):
livepatch: Remove .klp.arch
s390/module: Use s390_kernel_write() for relocations
x86/module: Use text_poke() for relocations

Documentation/livepatch/module-elf-format.rst | 12 +-
arch/s390/kernel/module.c | 106 +++++++++------
arch/um/kernel/um_arch.c | 16 +++
arch/x86/kernel/Makefile | 1 -
arch/x86/kernel/livepatch.c | 53 --------
arch/x86/kernel/module.c | 34 ++++-
include/linux/livepatch.h | 19 ++-
include/linux/module.h | 2 -
kernel/livepatch/core.c | 128 +++++++++++-------
kernel/module.c | 22 +--
10 files changed, 205 insertions(+), 188 deletions(-)
delete mode 100644 arch/x86/kernel/livepatch.c

--
2.21.1

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