----- Original Message -----
> From: "Dhaval Giani" <dhaval.gi...@gmail.com>
> To: "Ivana Hutarova Varekova" <varek...@redhat.com>
> Cc: "Libcg Development list" <libcg-devel@lists.sourceforge.net>
> Sent: Thursday, August 22, 2013 2:40:29 PM
> Subject: Re: [Libcg-devel] [PATCH] cgsnapshot: don't display mountpoints 
> which are not wanted
> 
> On Thu, Aug 22, 2013 at 5:34 AM, Ivana Hutarova Varekova
> <varek...@redhat.com> wrote:
> > the first version of this patch was created by Libo Chen
> > <clbchenlibo.chen@...>
> > see
> > http://sourceforge.net/p/libcg/mailman/libcg-devel/thread/51FB6459.9000307%40huawei.com/#msg31243958
> >
> > before patch:
> >         #lscgroup
> >         cpu:/
> >         cpuset:/
> >
> >         #cgsnapshot -s cpu
> >
> >         mount {
> >             cpuset = /cgroup/cpuacct;
> >             cpu = /cgroup/cpu;
> >         }
> >
> > We just wanted to save cpu controller, so cpuset was unexpected
> >
> 
> could you also add the differences between the two versions,and if
> there is no significant difference, this must be
> 
> From: Libo Chen <>


Hello, 
there are differences I just forgott to add the description of them. I just 
sent a new version with the log. Reported-by tag added.

Ivana
> 
> > Signed-off-by: Ivana Hutarova Varekova <varek...@redhat.com>
> > ---
> >
> >  src/tools/cgsnapshot.c |   61
> >  +++++++++++++++++++++++++++++++++++-------------
> >  1 files changed, 44 insertions(+), 17 deletions(-)
> >
> > diff --git a/src/tools/cgsnapshot.c b/src/tools/cgsnapshot.c
> > index 046c70a..dd49c9c 100644
> > --- a/src/tools/cgsnapshot.c
> > +++ b/src/tools/cgsnapshot.c
> > @@ -624,8 +624,46 @@ static int show_mountpoints(const char *controller)
> >         return 0;
> >  }
> >
> > +/* parse whether data about given controller "name" should be displayed.
> > + * If yes then the data are printed. "cont_names" is list of controllers
> > + * which should be shown.
> > + */
> > +static void parse_mountpoint(cont_name_t cont_names[CG_CONTROLLER_MAX],
> > +       char *name)
> > +{
> > +       int i;
> > +
> > +       /* if there is no controller list show all mounted controllers */
> > +       if (!(flags & FL_LIST)) {
> > +               if (show_mountpoints(name)) {
> > +                       /* the controller is not mounted */
> > +                       if ((flags & FL_SILENT) == 0)
> > +                               fprintf(stderr, "ERROR: %s hierarchy "\
> > +                                       "not mounted\n", name);
> > +               }
> > +               return;
> > +       }
> > +
> > +       /* there is controller list - show wanted mounted controllers only
> > */
> > +       for (i = 0; i <= CG_CONTROLLER_MAX-1; i++) {
> > +               if (!strncmp(cont_names[i], name, strlen(name)+1)) {
> > +                       /* controller is on the list */
> > +                       if (show_mountpoints(name)) {
> > +                               /* the controller is not mounted */
> > +                               if ((flags & FL_SILENT) == 0) {
> > +                                       fprintf(stderr, "ERROR: %s
> > hierarchy "\
> > +                                               "not mounted\n", name);
> > +                               }
> > +                       break;
> > +                       }
> > +               break;
> > +               }
> > +       }
> > +
> > +       return;
> > +}
> > +
> >  /* print data about input mount points */
> > -/* TODO only wanted ones */
> >  static int parse_mountpoints(cont_name_t cont_names[CG_CONTROLLER_MAX],
> >         const char *program_name)
> >  {
> > @@ -642,16 +680,8 @@ static int parse_mountpoints(cont_name_t
> > cont_names[CG_CONTROLLER_MAX],
> >         while (ret == 0) {
> >
> >                 /* the controller attached to some hierarchy */
> > -               if  (info.hierarchy != 0) {
> > -                       ret = show_mountpoints(info.name);
> > -                       if (ret != 0) {
> > -                               /* the controller is not mounted */
> > -                               if ((flags &  FL_SILENT) == 0) {
> > -                                       fprintf(stderr, "ERROR: %s
> > hierarchy "\
> > -                                               "not mounted\n",
> > info.name);
> > -                               }
> > -                       }
> > -               }
> > +               if  (info.hierarchy != 0)
> > +                       parse_mountpoint(cont_names, info.name);
> >
> >                 /* next controller */
> >                 ret = cgroup_get_all_controller_next(&handle, &info);
> > @@ -664,19 +694,16 @@ static int parse_mountpoints(cont_name_t
> > cont_names[CG_CONTROLLER_MAX],
> >                 }
> >                 final_ret = ret;
> >         }
> > -
> >         cgroup_get_all_controller_end(&handle);
> >
> >         /* process also named hierarchies */
> >         ret = cgroup_get_controller_begin(&handle, &mount);
> >         while (ret == 0) {
> > -               if (strncmp(mount.name, "name=", 5) == 0) {
> > -                       ret = show_mountpoints(mount.name);
> > -                       if (ret != 0)
> > -                               break;
> > -               }
> > +               if (strncmp(mount.name, "name=", 5) == 0)
> > +                       parse_mountpoint(cont_names, mount.name);
> >                 ret = cgroup_get_controller_next(&handle, &mount);
> >         }
> > +
> >         if (ret != ECGEOF) {
> >                 if ((flags &  FL_SILENT) != 0) {
> >                         fprintf(stderr,
> >
> >
> > ------------------------------------------------------------------------------
> > Introducing Performance Central, a new site from SourceForge and
> > AppDynamics. Performance Central is your source for news, insights,
> > analysis and resources for efficient Application Performance Management.
> > Visit us today!
> > http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk
> > _______________________________________________
> > Libcg-devel mailing list
> > Libcg-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/libcg-devel
> 

------------------------------------------------------------------------------
Introducing Performance Central, a new site from SourceForge and 
AppDynamics. Performance Central is your source for news, insights, 
analysis and resources for efficient Application Performance Management. 
Visit us today!
http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk
_______________________________________________
Libcg-devel mailing list
Libcg-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/libcg-devel

Reply via email to