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| From | Josh Poimboeuf <jpoimboe@redhat.com> |
| Newsgroups | linux.kernel |
| Subject | [PATCH v3 03/15] livepatch: temporary stubs for klp_patch_pending() and klp_update_patch_state() |
| Date | Thu, 08 Dec 2016 19:20:01 +0100 |
| Message-ID | <sMbst-Yb-15@gated-at.bofh.it> (permalink) |
| References | <sMbst-Yb-9@gated-at.bofh.it> |
| X-Scanned-By | MIMEDefang 2.68 on 10.5.11.26 |
| X-Greylist | Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Thu, 08 Dec 2016 18:12:31 +0000 (UTC) |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 47 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | linux-kernel@vger.kernel.org, live-patching@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>, Heiko Carstens <heiko.carstens@de.ibm.com>, x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Vojtech Pavlik <vojtech@suse.com>, Jiri Slaby <jslaby@suse.cz>, Chris J Arges <chris.j.arges@canonical.com>, Andy Lutomirski <luto@kernel.org>, Ingo Molnar <mingo@kernel.org>, Peter Zijlstra <peterz@infradead.org> |
| X-Original-Date | Thu, 8 Dec 2016 12:08:28 -0600 |
| X-Original-Message-ID | <26bb2315093328bf31e94fdd6eec61c341a6e924.1481220077.git.jpoimboe@redhat.com> |
| X-Original-References | <cover.1481220077.git.jpoimboe@redhat.com> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1538776 |
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Create temporary stubs for klp_patch_pending() and
klp_update_patch_state() so we can add TIF_PATCH_PENDING to different
architectures in separate patches without breaking build bisectability.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
---
include/linux/livepatch.h | 7 ++++++-
kernel/livepatch/core.c | 3 +++
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h
index 9072f04..60558d8 100644
--- a/include/linux/livepatch.h
+++ b/include/linux/livepatch.h
@@ -123,10 +123,15 @@ void arch_klp_init_object_loaded(struct klp_patch *patch,
int klp_module_coming(struct module *mod);
void klp_module_going(struct module *mod);
+static inline bool klp_patch_pending(struct task_struct *task) { return false; }
+void klp_update_patch_state(struct task_struct *task);
+
#else /* !CONFIG_LIVEPATCH */
static inline int klp_module_coming(struct module *mod) { return 0; }
-static inline void klp_module_going(struct module *mod) { }
+static inline void klp_module_going(struct module *mod) {}
+static inline bool klp_patch_pending(struct task_struct *task) { return false; }
+static inline void klp_update_patch_state(struct task_struct *task) {}
#endif /* CONFIG_LIVEPATCH */
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index af46438..217b39d 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -64,6 +64,9 @@ static LIST_HEAD(klp_ops);
static struct kobject *klp_root_kobj;
+/* TODO: temporary stub */
+void klp_update_patch_state(struct task_struct *task) {}
+
static struct klp_ops *klp_find_ops(unsigned long old_addr)
{
struct klp_ops *ops;
--
2.7.4
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[PATCH v3 03/15] livepatch: temporary stubs for klp_patch_pending() and klp_update_patch_state() Josh Poimboeuf <jpoimboe@redhat.com> - 2016-12-08 19:20 +0100
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