Commit f9f58285 authored by Fabian Frederick's avatar Fabian Frederick Committed by Linus Torvalds
Browse files

mm/slub.c: convert printk to pr_foo()



All printk(KERN_foo converted to pr_foo()

Default printk converted to pr_warn()

Coalesce format fragments
Signed-off-by: default avatarFabian Frederick <fabf@skynet.be>
Acked-by: default avatarChristoph Lameter <cl@linux.com>
Cc: Joe Perches <joe@perches.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 982792c7
......@@ -403,7 +403,7 @@ static inline bool __cmpxchg_double_slab(struct kmem_cache *s, struct page *page
stat(s, CMPXCHG_DOUBLE_FAIL);
#ifdef SLUB_DEBUG_CMPXCHG
printk(KERN_INFO "%s %s: cmpxchg double redo ", n, s->name);
pr_info("%s %s: cmpxchg double redo ", n, s->name);
#endif
return 0;
......@@ -444,7 +444,7 @@ static inline bool cmpxchg_double_slab(struct kmem_cache *s, struct page *page,
stat(s, CMPXCHG_DOUBLE_FAIL);
#ifdef SLUB_DEBUG_CMPXCHG
printk(KERN_INFO "%s %s: cmpxchg double redo ", n, s->name);
pr_info("%s %s: cmpxchg double redo ", n, s->name);
#endif
return 0;
......@@ -546,14 +546,14 @@ static void print_track(const char *s, struct track *t)
if (!t->addr)
return;
printk(KERN_ERR "INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
pr_err("INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
#ifdef CONFIG_STACKTRACE
{
int i;
for (i = 0; i < TRACK_ADDRS_COUNT; i++)
if (t->addrs[i])
printk(KERN_ERR "\t%pS\n", (void *)t->addrs[i]);
pr_err("\t%pS\n", (void *)t->addrs[i]);
else
break;
}
......@@ -571,8 +571,7 @@ static void print_tracking(struct kmem_cache *s, void *object)
static void print_page_info(struct page *page)
{
printk(KERN_ERR
"INFO: Slab 0x%p objects=%u used=%u fp=0x%p flags=0x%04lx\n",
pr_err("INFO: Slab 0x%p objects=%u used=%u fp=0x%p flags=0x%04lx\n",
page, page->objects, page->inuse, page->freelist, page->flags);
}
......@@ -585,11 +584,9 @@ static void slab_bug(struct kmem_cache *s, char *fmt, ...)
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
printk(KERN_ERR "========================================"
"=====================================\n");
printk(KERN_ERR "BUG %s (%s): %s\n", s->name, print_tainted(), buf);
printk(KERN_ERR "----------------------------------------"
"-------------------------------------\n\n");
pr_err("=============================================================================\n");
pr_err("BUG %s (%s): %s\n", s->name, print_tainted(), buf);
pr_err("-----------------------------------------------------------------------------\n\n");
add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
}
......@@ -602,7 +599,7 @@ static void slab_fix(struct kmem_cache *s, char *fmt, ...)
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
printk(KERN_ERR "FIX %s: %s\n", s->name, buf);
pr_err("FIX %s: %s\n", s->name, buf);
}
static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
......@@ -614,8 +611,8 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
print_page_info(page);
printk(KERN_ERR "INFO: Object 0x%p @offset=%tu fp=0x%p\n\n",
p, p - addr, get_freepointer(s, p));
pr_err("INFO: Object 0x%p @offset=%tu fp=0x%p\n\n",
p, p - addr, get_freepointer(s, p));
if (p > addr + 16)
print_section("Bytes b4 ", p - 16, 16);
......@@ -698,7 +695,7 @@ static int check_bytes_and_report(struct kmem_cache *s, struct page *page,
end--;
slab_bug(s, "%s overwritten", what);
printk(KERN_ERR "INFO: 0x%p-0x%p. First byte 0x%x instead of 0x%x\n",
pr_err("INFO: 0x%p-0x%p. First byte 0x%x instead of 0x%x\n",
fault, end - 1, fault[0], value);
print_trailer(s, page, object);
......@@ -931,7 +928,7 @@ static void trace(struct kmem_cache *s, struct page *page, void *object,
int alloc)
{
if (s->flags & SLAB_TRACE) {
printk(KERN_INFO "TRACE %s %s 0x%p inuse=%d fp=0x%p\n",
pr_info("TRACE %s %s 0x%p inuse=%d fp=0x%p\n",
s->name,
alloc ? "alloc" : "free",
object, page->inuse,
......@@ -1134,9 +1131,8 @@ static noinline struct kmem_cache_node *free_debug_processing(
slab_err(s, page, "Attempt to free object(0x%p) "
"outside of slab", object);
} else if (!page->slab_cache) {
printk(KERN_ERR
"SLUB <none>: no slab for object 0x%p.\n",
object);
pr_err("SLUB <none>: no slab for object 0x%p.\n",
object);
dump_stack();
} else
object_err(s, page, object,
......@@ -1219,8 +1215,8 @@ static int __init setup_slub_debug(char *str)
slub_debug |= SLAB_FAILSLAB;
break;
default:
printk(KERN_ERR "slub_debug option '%c' "
"unknown. skipped\n", *str);
pr_err("slub_debug option '%c' unknown. skipped\n",
*str);
}
}
......@@ -1770,19 +1766,19 @@ static inline void note_cmpxchg_failure(const char *n,
#ifdef SLUB_DEBUG_CMPXCHG
unsigned long actual_tid = __this_cpu_read(s->cpu_slab->tid);
printk(KERN_INFO "%s %s: cmpxchg redo ", n, s->name);
pr_info("%s %s: cmpxchg redo ", n, s->name);
#ifdef CONFIG_PREEMPT
if (tid_to_cpu(tid) != tid_to_cpu(actual_tid))
printk("due to cpu change %d -> %d\n",
pr_warn("due to cpu change %d -> %d\n",
tid_to_cpu(tid), tid_to_cpu(actual_tid));
else
#endif
if (tid_to_event(tid) != tid_to_event(actual_tid))
printk("due to cpu running other code. Event %ld->%ld\n",
pr_warn("due to cpu running other code. Event %ld->%ld\n",
tid_to_event(tid), tid_to_event(actual_tid));
else
printk("for unknown reason: actual=%lx was=%lx target=%lx\n",
pr_warn("for unknown reason: actual=%lx was=%lx target=%lx\n",
actual_tid, tid, next_tid(tid));
#endif
stat(s, CMPXCHG_DOUBLE_CPU_FAIL);
......@@ -2154,16 +2150,15 @@ slab_out_of_memory(struct kmem_cache *s, gfp_t gfpflags, int nid)
{
int node;
printk(KERN_WARNING
"SLUB: Unable to allocate memory on node %d (gfp=0x%x)\n",
pr_warn("SLUB: Unable to allocate memory on node %d (gfp=0x%x)\n",
nid, gfpflags);
printk(KERN_WARNING " cache: %s, object size: %d, buffer size: %d, "
"default order: %d, min order: %d\n", s->name, s->object_size,
s->size, oo_order(s->oo), oo_order(s->min));
pr_warn(" cache: %s, object size: %d, buffer size: %d, default order: %d, min order: %d\n",
s->name, s->object_size, s->size, oo_order(s->oo),
oo_order(s->min));
if (oo_order(s->min) > get_order(s->object_size))
printk(KERN_WARNING " %s debugging increased min order, use "
"slub_debug=O to disable.\n", s->name);
pr_warn(" %s debugging increased min order, use slub_debug=O to disable.\n",
s->name);
for_each_online_node(node) {
struct kmem_cache_node *n = get_node(s, node);
......@@ -2178,8 +2173,7 @@ slab_out_of_memory(struct kmem_cache *s, gfp_t gfpflags, int nid)
nr_slabs = node_nr_slabs(n);
nr_objs = node_nr_objs(n);
printk(KERN_WARNING
" node %d: slabs: %ld, objs: %ld, free: %ld\n",
pr_warn(" node %d: slabs: %ld, objs: %ld, free: %ld\n",
node, nr_slabs, nr_objs, nr_free);
}
}
......@@ -2894,10 +2888,8 @@ static void early_kmem_cache_node_alloc(int node)
BUG_ON(!page);
if (page_to_nid(page) != node) {
printk(KERN_ERR "SLUB: Unable to allocate memory from "
"node %d\n", node);
printk(KERN_ERR "SLUB: Allocating a useless per node structure "
"in order to be able to continue\n");
pr_err("SLUB: Unable to allocate memory from node %d\n", node);
pr_err("SLUB: Allocating a useless per node structure in order to be able to continue\n");
}
n = page->freelist;
......@@ -3182,8 +3174,7 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page,
for_each_object(p, s, addr, page->objects) {
if (!test_bit(slab_index(p, s, addr), map)) {
printk(KERN_ERR "INFO: Object 0x%p @offset=%tu\n",
p, p - addr);
pr_err("INFO: Object 0x%p @offset=%tu\n", p, p - addr);
print_tracking(s, p);
}
}
......@@ -3650,9 +3641,7 @@ void __init kmem_cache_init(void)
register_cpu_notifier(&slab_notifier);
#endif
printk(KERN_INFO
"SLUB: HWalign=%d, Order=%d-%d, MinObjects=%d,"
" CPUs=%d, Nodes=%d\n",
pr_info("SLUB: HWalign=%d, Order=%d-%d, MinObjects=%d, CPUs=%d, Nodes=%d\n",
cache_line_size(),
slub_min_order, slub_max_order, slub_min_objects,
nr_cpu_ids, nr_node_ids);
......@@ -3934,8 +3923,8 @@ static int validate_slab_node(struct kmem_cache *s,
count++;
}
if (count != n->nr_partial)
printk(KERN_ERR "SLUB %s: %ld partial slabs counted but "
"counter=%ld\n", s->name, count, n->nr_partial);
pr_err("SLUB %s: %ld partial slabs counted but counter=%ld\n",
s->name, count, n->nr_partial);
if (!(s->flags & SLAB_STORE_USER))
goto out;
......@@ -3945,9 +3934,8 @@ static int validate_slab_node(struct kmem_cache *s,
count++;
}
if (count != atomic_long_read(&n->nr_slabs))
printk(KERN_ERR "SLUB: %s %ld slabs counted but "
"counter=%ld\n", s->name, count,
atomic_long_read(&n->nr_slabs));
pr_err("SLUB: %s %ld slabs counted but counter=%ld\n",
s->name, count, atomic_long_read(&n->nr_slabs));
out:
spin_unlock_irqrestore(&n->list_lock, flags);
......@@ -4211,53 +4199,50 @@ static void resiliency_test(void)
BUILD_BUG_ON(KMALLOC_MIN_SIZE > 16 || KMALLOC_SHIFT_HIGH < 10);
printk(KERN_ERR "SLUB resiliency testing\n");
printk(KERN_ERR "-----------------------\n");
printk(KERN_ERR "A. Corruption after allocation\n");
pr_err("SLUB resiliency testing\n");
pr_err("-----------------------\n");
pr_err("A. Corruption after allocation\n");
p = kzalloc(16, GFP_KERNEL);
p[16] = 0x12;
printk(KERN_ERR "\n1. kmalloc-16: Clobber Redzone/next pointer"
" 0x12->0x%p\n\n", p + 16);
pr_err("\n1. kmalloc-16: Clobber Redzone/next pointer 0x12->0x%p\n\n",
p + 16);
validate_slab_cache(kmalloc_caches[4]);
/* Hmmm... The next two are dangerous */
p = kzalloc(32, GFP_KERNEL);
p[32 + sizeof(void *)] = 0x34;
printk(KERN_ERR "\n2. kmalloc-32: Clobber next pointer/next slab"
" 0x34 -> -0x%p\n", p);
printk(KERN_ERR
"If allocated object is overwritten then not detectable\n\n");
pr_err("\n2. kmalloc-32: Clobber next pointer/next slab 0x34 -> -0x%p\n",
p);
pr_err("If allocated object is overwritten then not detectable\n\n");
validate_slab_cache(kmalloc_caches[5]);
p = kzalloc(64, GFP_KERNEL);
p += 64 + (get_cycles() & 0xff) * sizeof(void *);
*p = 0x56;
printk(KERN_ERR "\n3. kmalloc-64: corrupting random byte 0x56->0x%p\n",
p);
printk(KERN_ERR
"If allocated object is overwritten then not detectable\n\n");
pr_err("\n3. kmalloc-64: corrupting random byte 0x56->0x%p\n",
p);
pr_err("If allocated object is overwritten then not detectable\n\n");
validate_slab_cache(kmalloc_caches[6]);
printk(KERN_ERR "\nB. Corruption after free\n");
pr_err("\nB. Corruption after free\n");
p = kzalloc(128, GFP_KERNEL);
kfree(p);
*p = 0x78;
printk(KERN_ERR "1. kmalloc-128: Clobber first word 0x78->0x%p\n\n", p);
pr_err("1. kmalloc-128: Clobber first word 0x78->0x%p\n\n", p);
validate_slab_cache(kmalloc_caches[7]);
p = kzalloc(256, GFP_KERNEL);
kfree(p);
p[50] = 0x9a;
printk(KERN_ERR "\n2. kmalloc-256: Clobber 50th byte 0x9a->0x%p\n\n",
p);
pr_err("\n2. kmalloc-256: Clobber 50th byte 0x9a->0x%p\n\n", p);
validate_slab_cache(kmalloc_caches[8]);
p = kzalloc(512, GFP_KERNEL);
kfree(p);
p[512] = 0xab;
printk(KERN_ERR "\n3. kmalloc-512: Clobber redzone 0xab->0x%p\n\n", p);
pr_err("\n3. kmalloc-512: Clobber redzone 0xab->0x%p\n\n", p);
validate_slab_cache(kmalloc_caches[9]);
}
#else
......@@ -5303,7 +5288,7 @@ static int __init slab_sysfs_init(void)
slab_kset = kset_create_and_add("slab", &slab_uevent_ops, kernel_kobj);
if (!slab_kset) {
mutex_unlock(&slab_mutex);
printk(KERN_ERR "Cannot register slab subsystem.\n");
pr_err("Cannot register slab subsystem.\n");
return -ENOSYS;
}
......@@ -5312,8 +5297,8 @@ static int __init slab_sysfs_init(void)
list_for_each_entry(s, &slab_caches, list) {
err = sysfs_slab_add(s);
if (err)
printk(KERN_ERR "SLUB: Unable to add boot slab %s"
" to sysfs\n", s->name);
pr_err("SLUB: Unable to add boot slab %s to sysfs\n",
s->name);
}
while (alias_list) {
......@@ -5322,8 +5307,8 @@ static int __init slab_sysfs_init(void)
alias_list = alias_list->next;
err = sysfs_slab_alias(al->s, al->name);
if (err)
printk(KERN_ERR "SLUB: Unable to add boot slab alias"
" %s to sysfs\n", al->name);
pr_err("SLUB: Unable to add boot slab alias %s to sysfs\n",
al->name);
kfree(al);
}
......
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