[RFC PATCH v2 0/3] livepatch: Clear relocation targets on a module removal

From: Miroslav Benes
Date: Thu Sep 05 2019 - 08:45:19 EST


Updated version with Petr's feedback. It looks a bit different and
better now (I would say). Not that it should be considered before we
decide what to do with late module patching, but I finished it before
the discussion started and someone could be interested.

v1: http://lore.kernel.org/r/20190719122840.15353-1-mbenes@xxxxxxx

Tested on x86_64, ppc64le and s390x. Cross-compiled on arm64 to verify
that nothing is broken.

[1] 20180602161151.apuhs2dygsexmcg2@treble
[2] 1561019068-132672-1-git-send-email-cj.chengjian@xxxxxxxxxx
[3] 20180607092949.1706-1-mbenes@xxxxxxx

Miroslav Benes (3):
livepatch: Clear relocation targets on a module removal
livepatch: Unify functions for writing and clearing object relocations
livepatch: Clean up klp_update_object_relocations() return paths

arch/powerpc/kernel/module_64.c | 45 +++++++++++++++++++++++++
arch/s390/kernel/module.c | 8 +++++
arch/x86/kernel/module.c | 43 ++++++++++++++++++++++++
include/linux/moduleloader.h | 7 ++++
kernel/livepatch/core.c | 58 ++++++++++++++++++++++++---------
5 files changed, 146 insertions(+), 15 deletions(-)

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2.23.0