diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dynamic_debug.h | 18 | ||||
| -rw-r--r-- | include/linux/tracepoint.h | 4 |
2 files changed, 6 insertions, 16 deletions
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index a90b3892074a..1c70028f81f9 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -44,34 +44,24 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n, extern int ddebug_remove_module(const char *mod_name); #define dynamic_pr_debug(fmt, ...) do { \ - __label__ do_printk; \ - __label__ out; \ static struct _ddebug descriptor \ __used \ __attribute__((section("__verbose"), aligned(8))) = \ { KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__, \ _DPRINTK_FLAGS_DEFAULT }; \ - JUMP_LABEL(&descriptor.enabled, do_printk); \ - goto out; \ -do_printk: \ - printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ -out: ; \ + if (unlikely(descriptor.enabled)) \ + printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ } while (0) #define dynamic_dev_dbg(dev, fmt, ...) do { \ - __label__ do_printk; \ - __label__ out; \ static struct _ddebug descriptor \ __used \ __attribute__((section("__verbose"), aligned(8))) = \ { KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__, \ _DPRINTK_FLAGS_DEFAULT }; \ - JUMP_LABEL(&descriptor.enabled, do_printk); \ - goto out; \ -do_printk: \ - dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); \ -out: ; \ + if (unlikely(descriptor.enabled)) \ + dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); \ } while (0) #else diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index d3e4f87e95c0..c6814616653b 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -32,7 +32,7 @@ struct tracepoint { int state; /* State. */ void (*regfunc)(void); void (*unregfunc)(void); - struct tracepoint_func *funcs; + struct tracepoint_func __rcu *funcs; } __attribute__((aligned(32))); /* * Aligned on 32 bytes because it is * globally visible and gcc happily @@ -326,7 +326,7 @@ do_trace: \ * memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN); * __entry->next_pid = next->pid; * __entry->next_prio = next->prio; - * ) + * ), * * * * * Formatted output of a trace record via TP_printk(). |