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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/x86/kernel/livepatch.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/x86/kernel/livepatch.c')
-rw-r--r--kernel/arch/x86/kernel/livepatch.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/arch/x86/kernel/livepatch.c b/kernel/arch/x86/kernel/livepatch.c
index ff3c3101d..d1d35ccff 100644
--- a/kernel/arch/x86/kernel/livepatch.c
+++ b/kernel/arch/x86/kernel/livepatch.c
@@ -42,7 +42,6 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
bool readonly;
unsigned long val;
unsigned long core = (unsigned long)mod->module_core;
- unsigned long core_ro_size = mod->core_ro_size;
unsigned long core_size = mod->core_size;
switch (type) {
@@ -70,10 +69,12 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
/* loc does not point to any symbol inside the module */
return -EINVAL;
- if (loc < core + core_ro_size)
+ readonly = false;
+
+#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+ if (loc < core + mod->core_ro_size)
readonly = true;
- else
- readonly = false;
+#endif
/* determine if the relocation spans a page boundary */
numpages = ((loc & PAGE_MASK) == ((loc + size) & PAGE_MASK)) ? 1 : 2;