diff options
author | Li Bin <huawei.libin@huawei.com> | 2014-12-19 06:11:17 (GMT) |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2014-12-22 14:40:49 (GMT) |
commit | b5bfc51707f1b56b0b733980bb4fcc0562bf02d8 (patch) | |
tree | 3b31bf562c78492f3ad304bb053426eb0f9bcbb6 /kernel/livepatch/core.c | |
parent | 13d1cf7e702596e0cd8ec62afa6bd49c431f2d0c (diff) | |
download | linux-b5bfc51707f1b56b0b733980bb4fcc0562bf02d8.tar.xz |
livepatch: move x86 specific ftrace handler code to arch/x86
The execution flow redirection related implemention in the livepatch
ftrace handler is depended on the specific architecture. This patch
introduces klp_arch_set_pc(like kgdb_arch_set_pc) interface to change
the pt_regs.
Signed-off-by: Li Bin <huawei.libin@huawei.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'kernel/livepatch/core.c')
-rw-r--r-- | kernel/livepatch/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index f99fe18..07a2db9 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -272,7 +272,7 @@ static void notrace klp_ftrace_handler(unsigned long ip, { struct klp_func *func = ops->private; - regs->ip = (unsigned long)func->new_func; + klp_arch_set_pc(regs, (unsigned long)func->new_func); } static int klp_disable_func(struct klp_func *func) |