Re: Linux Kernel Markers - Coding Style Fixes

[Mathieu Desnoyers <compudj@krystal.dyndns.org>]

* Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca) wrote:
> Linux Kernel Markers - Coding Style Fixes
> 
> - Use struct marker instead of struct __mark_marker.
> - Change a "private_data" parameter name for "private".
> - DEFINE_MUTEX(markers_mutex) is made static.
> 
> This patch applies after linux-kernel-markers.patch.
> 

Hi Andrew,

Just to be precise wrt what you have, it applies right after:
linux-kernel-markers-checkpatch-fixes.patch
in your series.

Mathieu

> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> CC: Rusty Russell <rusty@rustcorp.com.au>
> ---
>  include/linux/marker.h |   18 +++++++++---------
>  include/linux/module.h |    2 +-
>  kernel/marker.c        |   22 ++++++++++------------
>  3 files changed, 20 insertions(+), 22 deletions(-)
> 
> Index: linux-2.6-lttng/include/linux/marker.h
> ===================================================================
> --- linux-2.6-lttng.orig/include/linux/marker.h	2007-09-30 09:33:48.000000000 -0400
> +++ linux-2.6-lttng/include/linux/marker.h	2007-09-30 09:35:13.000000000 -0400
> @@ -15,11 +15,11 @@
>  #include <linux/types.h>
>  
>  struct module;
> -struct __mark_marker;
> +struct marker;
>  
>  /**
>   * marker_probe_func - Type of a marker probe function
> - * @mdata: pointer of type struct __mark_marker
> + * @mdata: pointer of type struct marker
>   * @private_data: caller site private data
>   * @fmt: format string
>   * @...: variable argument list
> @@ -27,10 +27,10 @@ struct __mark_marker;
>   * Type of marker probe functions. They receive the mdata and need to parse the
>   * format string to recover the variable argument list.
>   */
> -typedef void marker_probe_func(const struct __mark_marker *mdata,
> +typedef void marker_probe_func(const struct marker *mdata,
>  	void *private_data, const char *fmt, ...);
>  
> -struct __mark_marker {
> +struct marker {
>  	const char *name;	/* Marker name */
>  	const char *format;	/* Marker format string, describing the
>  				 * variable argument list.
> @@ -57,7 +57,7 @@ struct __mark_marker {
>  		static const char __mstrtab_format_##name[]		\
>  		__attribute__((section("__markers_strings")))		\
>  		= format;						\
> -		static struct __mark_marker __mark_##name		\
> +		static struct marker __mark_##name			\
>  		__attribute__((section("__markers"))) =			\
>  		{ __mstrtab_name_##name, __mstrtab_format_##name,	\
>  		0, __mark_empty_function, NULL };			\
> @@ -72,13 +72,13 @@ struct __mark_marker {
>  		}							\
>  	} while (0)
>  
> -extern void marker_update_probe_range(struct __mark_marker *begin,
> -	struct __mark_marker *end, struct module *probe_module, int *refcount);
> +extern void marker_update_probe_range(struct marker *begin,
> +	struct marker *end, struct module *probe_module, int *refcount);
>  #else /* !CONFIG_MARKERS */
>  #define __trace_mark(name, call_data, format, args...) \
>  		__mark_check_format(format, ## args)
> -static inline void marker_update_probe_range(struct __mark_marker *begin,
> -	struct __mark_marker *end, struct module *probe_module, int *refcount)
> +static inline void marker_update_probe_range(struct marker *begin,
> +	struct marker *end, struct module *probe_module, int *refcount)
>  { }
>  #endif /* CONFIG_MARKERS */
>  
> Index: linux-2.6-lttng/include/linux/module.h
> ===================================================================
> --- linux-2.6-lttng.orig/include/linux/module.h	2007-09-30 09:35:26.000000000 -0400
> +++ linux-2.6-lttng/include/linux/module.h	2007-09-30 09:35:35.000000000 -0400
> @@ -372,7 +372,7 @@ struct module
>  	   keeping pointers to this stuff */
>  	char *args;
>  #ifdef CONFIG_MARKERS
> -	struct __mark_marker *markers;
> +	struct marker *markers;
>  	unsigned int num_markers;
>  #endif
>  };
> Index: linux-2.6-lttng/kernel/marker.c
> ===================================================================
> --- linux-2.6-lttng.orig/kernel/marker.c	2007-09-30 09:35:48.000000000 -0400
> +++ linux-2.6-lttng/kernel/marker.c	2007-09-30 09:44:14.000000000 -0400
> @@ -24,14 +24,14 @@
>  #include <linux/marker.h>
>  #include <linux/err.h>
>  
> -extern struct __mark_marker __start___markers[];
> -extern struct __mark_marker __stop___markers[];
> +extern struct marker __start___markers[];
> +extern struct marker __stop___markers[];
>  
>  /*
>   * module_mutex nests inside markers_mutex. Markers mutex protects the builtin
>   * and module markers, the hash table and deferred_sync.
>   */
> -DEFINE_MUTEX(markers_mutex);
> +static DEFINE_MUTEX(markers_mutex);
>  
>  /*
>   * Marker deferred synchronization.
> @@ -63,7 +63,7 @@ static struct hlist_head marker_table[MA
>  
>  /**
>   * __mark_empty_function - Empty probe callback
> - * @mdata: pointer of type const struct __mark_marker
> + * @mdata: pointer of type const struct marker
>   * @fmt: format string
>   * @...: variable argument list
>   *
> @@ -72,8 +72,7 @@ static struct hlist_head marker_table[MA
>   * though the function pointer change and the marker enabling are two distinct
>   * operations that modifies the execution flow of preemptible code.
>   */
> -void __mark_empty_function(const struct __mark_marker *mdata,
> -	void *private_data,
> +void __mark_empty_function(const struct marker *mdata, void *private,
>  	const char *fmt, ...)
>  {
>  }
> @@ -207,8 +206,7 @@ static int marker_set_format(struct mark
>  /*
>   * Sets the probe callback corresponding to one marker.
>   */
> -static int set_marker(struct marker_entry **entry,
> -			struct __mark_marker *elem)
> +static int set_marker(struct marker_entry **entry, struct marker *elem)
>  {
>  	int ret;
>  	WARN_ON(strcmp((*entry)->name, elem->name) != 0);
> @@ -240,7 +238,7 @@ static int set_marker(struct marker_entr
>   * empty function insures that the original callback is not used anymore. This
>   * insured by preemption disabling around the call site.
>   */
> -static void disable_marker(struct __mark_marker *elem)
> +static void disable_marker(struct marker *elem)
>  {
>  	elem->state = 0;
>  	elem->call = __mark_empty_function;
> @@ -261,11 +259,11 @@ static void disable_marker(struct __mark
>   * Updates the probe callback corresponding to a range of markers.
>   * Must be called with markers_mutex held.
>   */
> -void marker_update_probe_range(struct __mark_marker *begin,
> -	struct __mark_marker *end, struct module *probe_module,
> +void marker_update_probe_range(struct marker *begin,
> +	struct marker *end, struct module *probe_module,
>  	int *refcount)
>  {
> -	struct __mark_marker *iter;
> +	struct marker *iter;
>  	struct marker_entry *mark_entry;
>  
>  	for (iter = begin; iter < end; iter++) {
> -- 
> Mathieu Desnoyers
> Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
> OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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