taint: add explicit flag to show whether lock dep is still OK.

Fix up all callers as they were before, with make one change: an
unsigned module taints the kernel, but doesn't turn off lockdep.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

4 files changed, 4 insertions, 4 deletions

diff --git a/mm/memory.c b/mm/memory.c
index bb1369f7b9b4..bc8bec762db7 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -716,7 +716,7 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
                 print_symbol(KERN_ALERT "vma->vm_file->f_op->mmap: %s\n",
                                 (unsigned long)vma->vm_file->f_op->mmap);
         dump_stack();
-        add_taint(TAINT_BAD_PAGE);
+        add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
 }
 
 static inline bool is_cow_mapping(vm_flags_t flags)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index df2022ff0c8a..4c99cb7e276a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -320,7 +320,7 @@ static void bad_page(struct page *page)
 out:
         /* Leave bad fields for debug, except PageBuddy could make trouble */
         reset_page_mapcount(page); /* remove PageBuddy */
-        add_taint(TAINT_BAD_PAGE);
+        add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
 }
 
 /*
diff --git a/mm/slab.c b/mm/slab.c
index e7667a3584bc..856e4a192d25 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -812,7 +812,7 @@ static void __slab_error(const char *function, struct kmem_cache *cachep,
         printk(KERN_ERR "slab error in %s(): cache `%s': %s\n",
                function, cachep->name, msg);
         dump_stack();
-        add_taint(TAINT_BAD_PAGE);
+        add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
 }
 #endif
 
diff --git a/mm/slub.c b/mm/slub.c
index ba2ca53f6c3a..7ec3041bdd0d 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -562,7 +562,7 @@ static void slab_bug(struct kmem_cache *s, char *fmt, ...)
         printk(KERN_ERR "----------------------------------------"
                         "-------------------------------------\n\n");
 
-        add_taint(TAINT_BAD_PAGE);
+        add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
 }
 
 static void slab_fix(struct kmem_cache *s, char *fmt, ...)