Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / i386 / kernel / module.c

diff --git a/arch/i386/kernel/module.c b/arch/i386/kernel/module.c
index 5149c8a..2c6e3be 100644 (file)
--- a/arch/i386/kernel/module.c
+++ b/arch/i386/kernel/module.c
@@ -104,26 +104,42 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
        return -ENOEXEC;
 }
 
-extern void apply_alternatives(void *start, void *end); 
-
 int module_finalize(const Elf_Ehdr *hdr,
                    const Elf_Shdr *sechdrs,
                    struct module *me)
 {
-       const Elf_Shdr *s;
+       const Elf_Shdr *s, *text = NULL, *alt = NULL, *locks = NULL;
        char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
 
-       /* look for .altinstructions to patch */ 
        for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { 
-               void *seg;              
-               if (strcmp(".altinstructions", secstrings + s->sh_name))
-                       continue;
-               seg = (void *)s->sh_addr; 
-               apply_alternatives(seg, seg + s->sh_size); 
-       }       
+               if (!strcmp(".text", secstrings + s->sh_name))
+                       text = s;
+               if (!strcmp(".altinstructions", secstrings + s->sh_name))
+                       alt = s;
+               if (!strcmp(".smp_locks", secstrings + s->sh_name))
+                       locks= s;
+       }
+
+       if (alt) {
+               /* patch .altinstructions */
+               void *aseg = (void *)alt->sh_addr;
+               apply_alternatives(aseg, aseg + alt->sh_size);
+       }
+#ifdef CONFIG_SMP
+       if (locks && text) {
+               void *lseg = (void *)locks->sh_addr;
+               void *tseg = (void *)text->sh_addr;
+               alternatives_smp_module_add(me, me->name,
+                                           lseg, lseg + locks->sh_size,
+                                           tseg, tseg + text->sh_size);
+       }
+#endif
        return 0;
 }
 
 void module_arch_cleanup(struct module *mod)
 {
+#ifdef CONFIG_SMP
+       alternatives_smp_module_del(mod);
+#endif
 }