Commit-ID: 709adcb33928b5bf965587b23ed6544e964584a3
Gitweb: http://git.kernel.org/tip/709adcb33928b5bf965587b23ed6544e964584a3
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Wed, 2 Sep 2015 09:56:42 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 4 Sep 2015 12:01:01 -0300
tools lib api fs: Add FSTYPE__configured() method
Add FSTYPE__configured() (where FSTYPE is one of sysfs, procfs, debugfs,
tracefs) interface that returns bool state of the filesystem mount:
true - mounted, false - not mounted
It will not try to mount the filesystem.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Raphael Beamonte <raphael.beamonte@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1441180605-24737-13-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/lib/api/fs/fs.c | 23 ++++++++++++++---------
tools/lib/api/fs/fs.h | 5 ++++-
2 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c
index bc93baf..8afe08a 100644
--- a/tools/lib/api/fs/fs.c
+++ b/tools/lib/api/fs/fs.c
@@ -244,15 +244,20 @@ static const char *fs__mount(int idx)
return fs__check_mounts(fs) ? fs->path : NULL;
}
-#define FS(name, idx) \
-const char *name##__mountpoint(void) \
-{ \
- return fs__mountpoint(idx); \
-} \
- \
-const char *name##__mount(void) \
-{ \
- return fs__mount(idx); \
+#define FS(name, idx) \
+const char *name##__mountpoint(void) \
+{ \
+ return fs__mountpoint(idx); \
+} \
+ \
+const char *name##__mount(void) \
+{ \
+ return fs__mount(idx); \
+} \
+ \
+bool name##__configured(void) \
+{ \
+ return name##__mountpoint() != NULL; \
}
FS(sysfs, FS__SYSFS);
diff --git a/tools/lib/api/fs/fs.h b/tools/lib/api/fs/fs.h
index a9627ea..f654bcb 100644
--- a/tools/lib/api/fs/fs.h
+++ b/tools/lib/api/fs/fs.h
@@ -1,6 +1,8 @@
#ifndef __API_FS__
#define __API_FS__
+#include <stdbool.h>
+
/*
* On most systems <limits.h> would have given us this, but not on some systems
* (e.g. GNU/Hurd).
@@ -11,7 +13,8 @@
#define FS(name) \
const char *name##__mountpoint(void); \
- const char *name##__mount(void);
+ const char *name##__mount(void); \
+ bool name##__configured(void); \
FS(sysfs)
FS(procfs)
--
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