UBUNTU: Ubuntu-4.10.0-37.41

[mirror_ubuntu-zesty-kernel.git] / mm / slub.c

diff --git a/mm/slub.c b/mm/slub.c
index 067598a008493fabb68d48120a904943fff4e08c..7ec0a965c6a3a366550b2500f9880f65e5025138 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -496,10 +496,11 @@ static inline int check_valid_pointer(struct kmem_cache *s,
        return 1;
 }
 
-static void print_section(char *text, u8 *addr, unsigned int length)
+static void print_section(char *level, char *text, u8 *addr,
+                         unsigned int length)
 {
        metadata_access_enable();
-       print_hex_dump(KERN_ERR, text, DUMP_PREFIX_ADDRESS, 16, 1, addr,
+       print_hex_dump(level, text, DUMP_PREFIX_ADDRESS, 16, 1, addr,
                        length, 1);
        metadata_access_disable();
 }
@@ -636,14 +637,15 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
               p, p - addr, get_freepointer(s, p));
 
        if (s->flags & SLAB_RED_ZONE)
-               print_section("Redzone ", p - s->red_left_pad, s->red_left_pad);
+               print_section(KERN_ERR, "Redzone ", p - s->red_left_pad,
+                             s->red_left_pad);
        else if (p > addr + 16)
-               print_section("Bytes b4 ", p - 16, 16);
+               print_section(KERN_ERR, "Bytes b4 ", p - 16, 16);
 
-       print_section("Object ", p, min_t(unsigned long, s->object_size,
-                               PAGE_SIZE));
+       print_section(KERN_ERR, "Object ", p,
+                     min_t(unsigned long, s->object_size, PAGE_SIZE));
        if (s->flags & SLAB_RED_ZONE)
-               print_section("Redzone ", p + s->object_size,
+               print_section(KERN_ERR, "Redzone ", p + s->object_size,
                        s->inuse - s->object_size);
 
        if (s->offset)
@@ -658,7 +660,8 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
 
        if (off != size_from_object(s))
                /* Beginning of the filler is the free pointer */
-               print_section("Padding ", p + off, size_from_object(s) - off);
+               print_section(KERN_ERR, "Padding ", p + off,
+                             size_from_object(s) - off);
 
        dump_stack();
 }
@@ -820,7 +823,7 @@ static int slab_pad_check(struct kmem_cache *s, struct page *page)
                end--;
 
        slab_err(s, page, "Padding overwritten. 0x%p-0x%p", fault, end - 1);
-       print_section("Padding ", end - remainder, remainder);
+       print_section(KERN_ERR, "Padding ", end - remainder, remainder);
 
        restore_bytes(s, "slab padding", POISON_INUSE, end - remainder, end);
        return 0;
@@ -973,7 +976,7 @@ static void trace(struct kmem_cache *s, struct page *page, void *object,
                        page->freelist);
 
                if (!alloc)
-                       print_section("Object ", (void *)object,
+                       print_section(KERN_INFO, "Object ", (void *)object,
                                        s->object_size);
 
                dump_stack();
@@ -1419,6 +1422,10 @@ static int init_cache_random_seq(struct kmem_cache *s)
        int err;
        unsigned long i, count = oo_objects(s->oo);
 
+       /* Bailout if already initialised */
+       if (s->random_seq)
+               return 0;
+
        err = cache_random_seq_create(s, count, GFP_KERNEL);
        if (err) {
                pr_err("SLUB: Unable to initialize free list for %s\n",