From: Jiri Olsa <jo...@kernel.org> 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 <jo...@kernel.org> Cc: Raphael Beamonte <raphael.beamo...@gmail.com> Cc: David Ahern <dsah...@gmail.com> Cc: Matt Fleming <m...@codeblueprint.co.uk> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Steven Rostedt <rost...@goodmis.org> Link: http://lkml.kernel.org/r/1441180605-24737-13-git-send-email-jo...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- 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 bc93baf33fff..8afe08a99bc6 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 a9627ea5e6ae..f654bcb99d1e 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) -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
