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authorEduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>2008-08-19 20:43:25 +0300
committerPekka Enberg <penberg@cs.helsinki.fi>2008-11-26 16:47:25 +0200
commitce71e27c6fdc43c29f36d307b9100bde70c947fc (patch)
tree4c38611002eb3945835ed6bec78d6fb55118165a /mm
parent210b5c06130f266370b5ff86e3cb6d860e1be29c (diff)
downloadop-kernel-dev-ce71e27c6fdc43c29f36d307b9100bde70c947fc.zip
op-kernel-dev-ce71e27c6fdc43c29f36d307b9100bde70c947fc.tar.gz
SLUB: Replace __builtin_return_address(0) with _RET_IP_.
This patch replaces __builtin_return_address(0) with _RET_IP_, since a previous patch moved _RET_IP_ and _THIS_IP_ to include/linux/kernel.h and they're widely available now. This makes for shorter and easier to read code. [penberg@cs.helsinki.fi: remove _RET_IP_ casts to void pointer] Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'mm')
-rw-r--r--mm/slab.c8
-rw-r--r--mm/slub.c48
2 files changed, 28 insertions, 28 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 0918751..a1478779 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3686,9 +3686,9 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
EXPORT_SYMBOL(__kmalloc_node);
void *__kmalloc_node_track_caller(size_t size, gfp_t flags,
- int node, void *caller)
+ int node, unsigned long caller)
{
- return __do_kmalloc_node(size, flags, node, caller);
+ return __do_kmalloc_node(size, flags, node, (void *)caller);
}
EXPORT_SYMBOL(__kmalloc_node_track_caller);
#else
@@ -3730,9 +3730,9 @@ void *__kmalloc(size_t size, gfp_t flags)
}
EXPORT_SYMBOL(__kmalloc);
-void *__kmalloc_track_caller(size_t size, gfp_t flags, void *caller)
+void *__kmalloc_track_caller(size_t size, gfp_t flags, unsigned long caller)
{
- return __do_kmalloc(size, flags, caller);
+ return __do_kmalloc(size, flags, (void *)caller);
}
EXPORT_SYMBOL(__kmalloc_track_caller);
diff --git a/mm/slub.c b/mm/slub.c
index 7ec2888..68ab260 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -182,7 +182,7 @@ static LIST_HEAD(slab_caches);
* Tracking user of a slab.
*/
struct track {
- void *addr; /* Called from address */
+ unsigned long addr; /* Called from address */
int cpu; /* Was running on cpu */
int pid; /* Pid context */
unsigned long when; /* When did the operation occur */
@@ -371,7 +371,7 @@ static struct track *get_track(struct kmem_cache *s, void *object,
}
static void set_track(struct kmem_cache *s, void *object,
- enum track_item alloc, void *addr)
+ enum track_item alloc, unsigned long addr)
{
struct track *p;
@@ -395,8 +395,8 @@ static void init_tracking(struct kmem_cache *s, void *object)
if (!(s->flags & SLAB_STORE_USER))
return;
- set_track(s, object, TRACK_FREE, NULL);
- set_track(s, object, TRACK_ALLOC, NULL);
+ set_track(s, object, TRACK_FREE, 0UL);
+ set_track(s, object, TRACK_ALLOC, 0UL);
}
static void print_track(const char *s, struct track *t)
@@ -405,7 +405,7 @@ static void print_track(const char *s, struct track *t)
return;
printk(KERN_ERR "INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
- s, t->addr, jiffies - t->when, t->cpu, t->pid);
+ s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
}
static void print_tracking(struct kmem_cache *s, void *object)
@@ -870,7 +870,7 @@ static void setup_object_debug(struct kmem_cache *s, struct page *page,
}
static int alloc_debug_processing(struct kmem_cache *s, struct page *page,
- void *object, void *addr)
+ void *object, unsigned long addr)
{
if (!check_slab(s, page))
goto bad;
@@ -910,7 +910,7 @@ bad:
}
static int free_debug_processing(struct kmem_cache *s, struct page *page,
- void *object, void *addr)
+ void *object, unsigned long addr)
{
if (!check_slab(s, page))
goto fail;
@@ -1033,10 +1033,10 @@ static inline void setup_object_debug(struct kmem_cache *s,
struct page *page, void *object) {}
static inline int alloc_debug_processing(struct kmem_cache *s,
- struct page *page, void *object, void *addr) { return 0; }
+ struct page *page, void *object, unsigned long addr) { return 0; }
static inline int free_debug_processing(struct kmem_cache *s,
- struct page *page, void *object, void *addr) { return 0; }
+ struct page *page, void *object, unsigned long addr) { return 0; }
static inline int slab_pad_check(struct kmem_cache *s, struct page *page)
{ return 1; }
@@ -1503,8 +1503,8 @@ static inline int node_match(struct kmem_cache_cpu *c, int node)
* we need to allocate a new slab. This is the slowest path since it involves
* a call to the page allocator and the setup of a new slab.
*/
-static void *__slab_alloc(struct kmem_cache *s,
- gfp_t gfpflags, int node, void *addr, struct kmem_cache_cpu *c)
+static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
+ unsigned long addr, struct kmem_cache_cpu *c)
{
void **object;
struct page *new;
@@ -1588,7 +1588,7 @@ debug:
* Otherwise we can simply pick the next object from the lockless free list.
*/
static __always_inline void *slab_alloc(struct kmem_cache *s,
- gfp_t gfpflags, int node, void *addr)
+ gfp_t gfpflags, int node, unsigned long addr)
{
void **object;
struct kmem_cache_cpu *c;
@@ -1617,14 +1617,14 @@ static __always_inline void *slab_alloc(struct kmem_cache *s,
void *kmem_cache_alloc(struct kmem_cache *s, gfp_t gfpflags)
{
- return slab_alloc(s, gfpflags, -1, __builtin_return_address(0));
+ return slab_alloc(s, gfpflags, -1, _RET_IP_);
}
EXPORT_SYMBOL(kmem_cache_alloc);
#ifdef CONFIG_NUMA
void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags, int node)
{
- return slab_alloc(s, gfpflags, node, __builtin_return_address(0));
+ return slab_alloc(s, gfpflags, node, _RET_IP_);
}
EXPORT_SYMBOL(kmem_cache_alloc_node);
#endif
@@ -1638,7 +1638,7 @@ EXPORT_SYMBOL(kmem_cache_alloc_node);
* handling required then we can return immediately.
*/
static void __slab_free(struct kmem_cache *s, struct page *page,
- void *x, void *addr, unsigned int offset)
+ void *x, unsigned long addr, unsigned int offset)
{
void *prior;
void **object = (void *)x;
@@ -1708,7 +1708,7 @@ debug:
* with all sorts of special processing.
*/
static __always_inline void slab_free(struct kmem_cache *s,
- struct page *page, void *x, void *addr)
+ struct page *page, void *x, unsigned long addr)
{
void **object = (void *)x;
struct kmem_cache_cpu *c;
@@ -1735,7 +1735,7 @@ void kmem_cache_free(struct kmem_cache *s, void *x)
page = virt_to_head_page(x);
- slab_free(s, page, x, __builtin_return_address(0));
+ slab_free(s, page, x, _RET_IP_);
}
EXPORT_SYMBOL(kmem_cache_free);
@@ -2663,7 +2663,7 @@ void *__kmalloc(size_t size, gfp_t flags)
if (unlikely(ZERO_OR_NULL_PTR(s)))
return s;
- return slab_alloc(s, flags, -1, __builtin_return_address(0));
+ return slab_alloc(s, flags, -1, _RET_IP_);
}
EXPORT_SYMBOL(__kmalloc);
@@ -2691,7 +2691,7 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
if (unlikely(ZERO_OR_NULL_PTR(s)))
return s;
- return slab_alloc(s, flags, node, __builtin_return_address(0));
+ return slab_alloc(s, flags, node, _RET_IP_);
}
EXPORT_SYMBOL(__kmalloc_node);
#endif
@@ -2748,7 +2748,7 @@ void kfree(const void *x)
put_page(page);
return;
}
- slab_free(page->slab, page, object, __builtin_return_address(0));
+ slab_free(page->slab, page, object, _RET_IP_);
}
EXPORT_SYMBOL(kfree);
@@ -3204,7 +3204,7 @@ static struct notifier_block __cpuinitdata slab_notifier = {
#endif
-void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, void *caller)
+void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
{
struct kmem_cache *s;
@@ -3220,7 +3220,7 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, void *caller)
}
void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
- int node, void *caller)
+ int node, unsigned long caller)
{
struct kmem_cache *s;
@@ -3431,7 +3431,7 @@ static void resiliency_test(void) {};
struct location {
unsigned long count;
- void *addr;
+ unsigned long addr;
long long sum_time;
long min_time;
long max_time;
@@ -3479,7 +3479,7 @@ static int add_location(struct loc_track *t, struct kmem_cache *s,
{
long start, end, pos;
struct location *l;
- void *caddr;
+ unsigned long caddr;
unsigned long age = jiffies - track->when;
start = -1;
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