Em Wed, Sep 02, 2015 at 09:56:42AM +0200, Jiri Olsa escreveu:
> Adding name__mount (where name is in sysfs,procfs,debugfs,tracefs)
> interface that returns bool state of the filesystem mount:
>   true - mounted, false - not mounted

Well, why not take the opportunity and call it... name__mounted()?
"__configured()" is too vague...

Also there was some cut'n'pasting mistake here... if you agree I can fix
it all up and make this change, well, I'm doing it on my local tree,
holler if you have any objection :)

- Arnaldo
 
> It will not try to mount the filesystem.

No FSTYPE__configured() (to-be FSTYPE__mounted()) doesn't mount
anything, that is what FSTYPE__mount() does :-) 

- Arnaldo
 
> Link: http://lkml.kernel.org/n/tip-csvlq2hr43ys3u7nfs2up...@git.kernel.org
> Signed-off-by: Jiri Olsa <jo...@kernel.org>
> ---
>  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)
> -- 
> 2.4.3
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