linux-kernel - Re: [PATCH 04/19] perf metric: Add expr__del

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Message-ID: <20200728122832.GK40195@kernel.org>
Date:   Tue, 28 Jul 2020 09:28:32 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     kajoljain <kjain@...ux.ibm.com>
Cc:     Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Michael Petlan <mpetlan@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        John Garry <john.garry@...wei.com>,
        "Paul A. Clarke" <pc@...ibm.com>,
        Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 04/19] perf metric: Add expr__del_id function

Em Sun, Jul 26, 2020 at 02:47:11PM +0530, kajoljain escreveu:
> 
> 
> On 7/19/20 11:43 PM, Jiri Olsa wrote:
> > Adding expr__del_id function to remove ID from hashmap.
> > It will save us few lines in following changes.
> > 
> > Acked-by: Ian Rogers <irogers@...gle.com>
> > Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> 
> Reviewed-By : Kajol Jain<kjain@...ux.ibm.com>

Thanks, applied.

- Arnaldo
 
> Thanks,
> Kajol Jain
> 
> > ---
> >  tools/perf/util/expr.c | 21 +++++++++++++--------
> >  tools/perf/util/expr.h |  1 +
> >  2 files changed, 14 insertions(+), 8 deletions(-)
> > 
> > diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
> > index 4e5a6533dfce..f726211f49d4 100644
> > --- a/tools/perf/util/expr.c
> > +++ b/tools/perf/util/expr.c
> > @@ -79,6 +79,17 @@ int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
> >  	return hashmap__find(&ctx->ids, id, (void **)data) ? 0 : -1;
> >  }
> >  
> > +void expr__del_id(struct expr_parse_ctx *ctx, const char *id)
> > +{
> > +	struct expr_id_data *old_val = NULL;
> > +	char *old_key = NULL;
> > +
> > +	hashmap__delete(&ctx->ids, id,
> > +			(const void **)&old_key, (void **)&old_val);
> > +	free(old_key);
> > +	free(old_val);
> > +}
> > +
> >  void expr__ctx_init(struct expr_parse_ctx *ctx)
> >  {
> >  	hashmap__init(&ctx->ids, key_hash, key_equal, NULL);
> > @@ -136,16 +147,10 @@ int expr__parse(double *final_val, struct expr_parse_ctx *ctx,
> >  int expr__find_other(const char *expr, const char *one,
> >  		     struct expr_parse_ctx *ctx, int runtime)
> >  {
> > -	struct expr_id_data *old_val = NULL;
> > -	char *old_key = NULL;
> >  	int ret = __expr__parse(NULL, ctx, expr, EXPR_OTHER, runtime);
> >  
> > -	if (one) {
> > -		hashmap__delete(&ctx->ids, one,
> > -				(const void **)&old_key, (void **)&old_val);
> > -		free(old_key);
> > -		free(old_val);
> > -	}
> > +	if (one)
> > +		expr__del_id(ctx, one);
> >  
> >  	return ret;
> >  }
> > diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
> > index f38292fdab19..2462abd0ac65 100644
> > --- a/tools/perf/util/expr.h
> > +++ b/tools/perf/util/expr.h
> > @@ -26,6 +26,7 @@ struct expr_scanner_ctx {
> >  
> >  void expr__ctx_init(struct expr_parse_ctx *ctx);
> >  void expr__ctx_clear(struct expr_parse_ctx *ctx);
> > +void expr__del_id(struct expr_parse_ctx *ctx, const char *id);
> >  int expr__add_id(struct expr_parse_ctx *ctx, const char *id);
> >  int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val);
> >  int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
> > 

-- 

- Arnaldo