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| author |   Joe Lawrence <joe.lawrence@redhat.com> | 2017-10-13 15:08:41 -0400 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2017-10-19 10:08:56 +0200 |
| commit | 93862e385ded7c60351e09fcd2a541d273650905 (patch) | |
| tree | 22dc512303e988d00e327fa05c884e542fb5af55 /samples/livepatch/Makefile | |
| parent | livepatch: Small shadow variable documentation fixes (diff) | |
| download | wireguard-linux-93862e385ded7c60351e09fcd2a541d273650905.tar.xz wireguard-linux-93862e385ded7c60351e09fcd2a541d273650905.zip | |
livepatch: add (un)patch callbacks
Provide livepatch modules a klp_object (un)patching notification
mechanism. Pre and post-(un)patch callbacks allow livepatch modules to
setup or synchronize changes that would be difficult to support in only
patched-or-unpatched code contexts.
Callbacks can be registered for target module or vmlinux klp_objects,
but each implementation is klp_object specific.
- Pre-(un)patch callbacks run before any (un)patching transition
starts.
- Post-(un)patch callbacks run once an object has been (un)patched and
the klp_patch fully transitioned to its target state.
Example use cases include modification of global data and registration
of newly available services/handlers.
See Documentation/livepatch/callbacks.txt for details and
samples/livepatch/ for examples.
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'samples/livepatch/Makefile')
| -rw-r--r-- | samples/livepatch/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/samples/livepatch/Makefile b/samples/livepatch/Makefile index 539e81d433cd..2472ce39a18d 100644 --- a/samples/livepatch/Makefile +++ b/samples/livepatch/Makefile @@ -2,3 +2,6 @@ obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-sample.o obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-mod.o obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix1.o obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix2.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-callbacks-demo.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-callbacks-mod.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-callbacks-busymod.o |