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perf fs: Add procfs support 

Adding procfs support into fs class.

The interface function:
  const char *procfs__mountpoint(void);

provides existing mountpoint path for procfs.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383660887-1734-3-git-send-email-jolsa@redhat.com
[ Fixup namespace ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2013-11-05 15:14:46 +01:00 committed by Arnaldo Carvalho de Melo
parent cf38fadade
commit a986241854
3 changed files with 19 additions and 2 deletions
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16
tools/perf/util/fs.c
View File

@ -9,6 +9,11 @@ static const char * const sysfs__fs_known_mountpoints[] = {
0,
};
static const char * const procfs__known_mountpoints[] = {
"/proc",
0,
};
struct fs {
const char *name;
const char * const *mounts;
@ -18,7 +23,8 @@ struct fs {
};
enum {
FS__SYSFS = 0,
FS__SYSFS = 0,
FS__PROCFS = 1,
};
static struct fs fs__entries[] = {
@ -27,6 +33,11 @@ static struct fs fs__entries[] = {
.mounts = sysfs__fs_known_mountpoints,
.magic = SYSFS_MAGIC,
},
[FS__PROCFS] = {
.name = "proc",
.mounts = procfs__known_mountpoints,
.magic = PROC_SUPER_MAGIC,
},
};
static bool fs__read_mounts(struct fs *fs)
@ -104,4 +115,5 @@ const char *name##__mountpoint(void) \
return fs__mountpoint(idx); \
}
FS__MOUNTPOINT(sysfs, FS__SYSFS);
FS__MOUNTPOINT(sysfs, FS__SYSFS);
FS__MOUNTPOINT(procfs, FS__PROCFS);

1
tools/perf/util/fs.h
View File

@ -2,5 +2,6 @@
#define __PERF_FS
const char *sysfs__mountpoint(void);
const char *procfs__mountpoint(void);
#endif /* __PERF_FS */

4
tools/perf/util/include/linux/magic.h
View File

@ -9,4 +9,8 @@
#define SYSFS_MAGIC 0x62656572
#endif
#ifndef PROC_SUPER_MAGIC
#define PROC_SUPER_MAGIC 0x9fa0
#endif
#endif