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Commit c495afb4 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

tools lib api fs: Add tracefs into fs.c object 



Adding tracefs support into fs.c framework. It'll replace the tracefs
object functionality in following patches.

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Raphael Beamonte <raphael.beamonte@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1441180605-24737-11-git-send-email-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 8ccfabdb

tools/lib/api/fs/fs.c

+28 −0
Original line number Diff line number Diff line
@@ -28,6 +28,10 @@ 
#define DEBUGFS_MAGIC          0x64626720

#endif



#ifndef TRACEFS_MAGIC

#define TRACEFS_MAGIC          0x74726163

#endif



static const char * const sysfs__fs_known_mountpoints[] = {

	"/sys",

	0,
@@ -48,6 +52,19 @@ static const char * const debugfs__known_mountpoints[] = { 
	0,

};





#ifndef TRACEFS_DEFAULT_PATH

#define TRACEFS_DEFAULT_PATH "/sys/kernel/tracing"

#endif



static const char * const tracefs__known_mountpoints[] = {

	TRACEFS_DEFAULT_PATH,

	"/sys/kernel/debug/tracing",

	"/tracing",

	"/trace",

	0,

};



struct fs {

	const char		*name;

	const char * const	*mounts;
@@ -60,8 +77,13 @@ enum { 
	FS__SYSFS   = 0,

	FS__PROCFS  = 1,

	FS__DEBUGFS = 2,

	FS__TRACEFS = 3,

};



#ifndef TRACEFS_MAGIC

#define TRACEFS_MAGIC 0x74726163

#endif



static struct fs fs__entries[] = {

	[FS__SYSFS] = {

		.name	= "sysfs",
@@ -78,6 +100,11 @@ static struct fs fs__entries[] = { 
		.mounts	= debugfs__known_mountpoints,

		.magic	= DEBUGFS_MAGIC,

	},

	[FS__TRACEFS] = {

		.name	= "tracefs",

		.mounts	= tracefs__known_mountpoints,

		.magic	= TRACEFS_MAGIC,

	},

};



static bool fs__read_mounts(struct fs *fs)
@@ -197,6 +224,7 @@ const char *name##__mountpoint(void) \ 
FS__MOUNTPOINT(sysfs,   FS__SYSFS);

FS__MOUNTPOINT(procfs,  FS__PROCFS);

FS__MOUNTPOINT(debugfs, FS__DEBUGFS);

FS__MOUNTPOINT(tracefs, FS__TRACEFS);



int filename__read_int(const char *filename, int *value)

{

tools/lib/api/fs/fs.h

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
const char *sysfs__mountpoint(void);

const char *procfs__mountpoint(void);

const char *debugfs__mountpoint(void);

const char *tracefs__mountpoint(void);



int filename__read_int(const char *filename, int *value);

int sysctl__read_int(const char *sysctl, int *value);