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authorIngo Molnar <mingo@elte.hu>2008-09-10 11:32:52 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-10 11:32:52 +0200
commite92b4fdacc6a7d8cc7895b81347671d5fcd6c5e1 (patch)
tree4f84567261682d8ec2ad4102bce1ff970a6eed1a /lib
parent9fcaff0e660d886e9a766460adbe558dd25de31b (diff)
parentadee14b2e1557d0a8559f29681732d05a89dfc35 (diff)
downloadconfigs-e92b4fdacc6a7d8cc7895b81347671d5fcd6c5e1.tar.gz
Merge commit 'v2.6.27-rc6' into x86/iommu
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug6
-rw-r--r--lib/debugobjects.c31
-rw-r--r--lib/kobject.c3
-rw-r--r--lib/vsprintf.c11
4 files changed, 28 insertions, 23 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 8b5a7d304a5..0b504814e37 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -394,7 +394,7 @@ config LOCKDEP
bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select STACKTRACE
- select FRAME_POINTER if !X86 && !MIPS
+ select FRAME_POINTER if !X86 && !MIPS && !PPC
select KALLSYMS
select KALLSYMS_ALL
@@ -676,13 +676,13 @@ config FAULT_INJECTION_STACKTRACE_FILTER
depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT
depends on !X86_64
select STACKTRACE
- select FRAME_POINTER
+ select FRAME_POINTER if !PPC
help
Provide stacktrace filter for fault-injection capabilities
config LATENCYTOP
bool "Latency measuring infrastructure"
- select FRAME_POINTER if !MIPS
+ select FRAME_POINTER if !MIPS && !PPC
select KALLSYMS
select KALLSYMS_ALL
select STACKTRACE
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index 45a6bde762d..e3ab374e133 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -112,6 +112,7 @@ static struct debug_obj *lookup_object(void *addr, struct debug_bucket *b)
/*
* Allocate a new object. If the pool is empty, switch off the debugger.
+ * Must be called with interrupts disabled.
*/
static struct debug_obj *
alloc_object(void *addr, struct debug_bucket *b, struct debug_obj_descr *descr)
@@ -148,17 +149,18 @@ alloc_object(void *addr, struct debug_bucket *b, struct debug_obj_descr *descr)
static void free_object(struct debug_obj *obj)
{
unsigned long idx = (unsigned long)(obj - obj_static_pool);
+ unsigned long flags;
if (obj_pool_free < ODEBUG_POOL_SIZE || idx < ODEBUG_POOL_SIZE) {
- spin_lock(&pool_lock);
+ spin_lock_irqsave(&pool_lock, flags);
hlist_add_head(&obj->node, &obj_pool);
obj_pool_free++;
obj_pool_used--;
- spin_unlock(&pool_lock);
+ spin_unlock_irqrestore(&pool_lock, flags);
} else {
- spin_lock(&pool_lock);
+ spin_lock_irqsave(&pool_lock, flags);
obj_pool_used--;
- spin_unlock(&pool_lock);
+ spin_unlock_irqrestore(&pool_lock, flags);
kmem_cache_free(obj_cache, obj);
}
}
@@ -171,6 +173,7 @@ static void debug_objects_oom(void)
{
struct debug_bucket *db = obj_hash;
struct hlist_node *node, *tmp;
+ HLIST_HEAD(freelist);
struct debug_obj *obj;
unsigned long flags;
int i;
@@ -179,11 +182,14 @@ static void debug_objects_oom(void)
for (i = 0; i < ODEBUG_HASH_SIZE; i++, db++) {
spin_lock_irqsave(&db->lock, flags);
- hlist_for_each_entry_safe(obj, node, tmp, &db->list, node) {
+ hlist_move_list(&db->list, &freelist);
+ spin_unlock_irqrestore(&db->lock, flags);
+
+ /* Now free them */
+ hlist_for_each_entry_safe(obj, node, tmp, &freelist, node) {
hlist_del(&obj->node);
free_object(obj);
}
- spin_unlock_irqrestore(&db->lock, flags);
}
}
@@ -498,8 +504,9 @@ void debug_object_free(void *addr, struct debug_obj_descr *descr)
return;
default:
hlist_del(&obj->node);
+ spin_unlock_irqrestore(&db->lock, flags);
free_object(obj);
- break;
+ return;
}
out_unlock:
spin_unlock_irqrestore(&db->lock, flags);
@@ -510,6 +517,7 @@ static void __debug_check_no_obj_freed(const void *address, unsigned long size)
{
unsigned long flags, oaddr, saddr, eaddr, paddr, chunks;
struct hlist_node *node, *tmp;
+ HLIST_HEAD(freelist);
struct debug_obj_descr *descr;
enum debug_obj_state state;
struct debug_bucket *db;
@@ -545,11 +553,18 @@ repeat:
goto repeat;
default:
hlist_del(&obj->node);
- free_object(obj);
+ hlist_add_head(&obj->node, &freelist);
break;
}
}
spin_unlock_irqrestore(&db->lock, flags);
+
+ /* Now free them */
+ hlist_for_each_entry_safe(obj, node, tmp, &freelist, node) {
+ hlist_del(&obj->node);
+ free_object(obj);
+ }
+
if (cnt > debug_objects_maxchain)
debug_objects_maxchain = cnt;
}
diff --git a/lib/kobject.c b/lib/kobject.c
index bd732ffebc8..fbf0ae28237 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -223,8 +223,7 @@ static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
return -ENOMEM;
/* ewww... some of these buggers have '/' in the name ... */
- s = strchr(kobj->name, '/');
- if (s)
+ while ((s = strchr(kobj->name, '/')))
s[0] = '!';
kfree(old_name);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d8d1d114224..c399bc1093c 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -27,6 +27,7 @@
#include <asm/page.h> /* for PAGE_SIZE */
#include <asm/div64.h>
+#include <asm/sections.h> /* for dereference_function_descriptor() */
/* Works only for digits and letters, but small and fast */
#define TOLOWER(x) ((x) | 0x20)
@@ -513,16 +514,6 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
return buf;
}
-static inline void *dereference_function_descriptor(void *ptr)
-{
-#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
- void *p;
- if (!probe_kernel_address(ptr, p))
- ptr = p;
-#endif
- return ptr;
-}
-
static char *symbol_string(char *buf, char *end, void *ptr, int field_width, int precision, int flags)
{
unsigned long value = (unsigned long) ptr;