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Diffstat (limited to 'arch/x86/kernel/module.c')
-rw-r--r--arch/x86/kernel/module.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 7614f478fd7a..23c95a53d20e 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -18,6 +18,7 @@
#include <linux/gfp.h>
#include <linux/jump_label.h>
#include <linux/random.h>
+#include <linux/memory.h>
#include <asm/text-patching.h>
#include <asm/page.h>
@@ -227,14 +228,18 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
bool early = me->state == MODULE_STATE_UNFORMED;
void *(*write)(void *, const void *, size_t) = memcpy;
- if (!early)
+ if (!early) {
write = text_poke;
+ mutex_lock(&text_mutex);
+ }
ret = __apply_relocate_add(sechdrs, strtab, symindex, relsec, me,
write);
- if (!early)
+ if (!early) {
text_poke_sync();
+ mutex_unlock(&text_mutex);
+ }
return ret;
}