renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 11:44:01 +08:00
Code

perf hists: Exchange order of comparing items when collapsing hists

Browse Source 
When comparing entries for collapsing put the given entry first, and
then the iterated entry.  This is not the case of hist_entry__cmp() when
called if given sort keys don't require collapsing.  So change the order
for the sake of consistency.  It will be required for matching and/or
linking multiple hist entries.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1355128197-18193-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2012-12-10 17:29:54 +09:00 committed by Arnaldo Carvalho de Melo
parent 203e04c163
commit 9afcf930b1
2 changed files with 10 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/perf/builtin-diff.c
View File

@ -285,7 +285,7 @@ static void insert_hist_entry_by_name(struct rb_root *root,
while (*p != NULL) {
parent = *p;
iter = rb_entry(parent, struct hist_entry, rb_node);
if (hist_entry__cmp(he, iter) < 0)
if (hist_entry__cmp(iter, he) < 0)
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;

12
tools/perf/util/hist.c
View File

@ -285,7 +285,13 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
parent = *p;
he = rb_entry(parent, struct hist_entry, rb_node_in);
cmp = hist_entry__cmp(entry, he);
/*
* Make sure that it receives arguments in a same order as
* hist_entry__collapse() so that we can use an appropriate
* function when searching an entry regardless which sort
* keys were used.
*/
cmp = hist_entry__cmp(he, entry);
if (!cmp) {
he_stat__add_period(&he->stat, period);
@ -729,7 +735,7 @@ static struct hist_entry *hists__add_dummy_entry(struct hists *hists,
parent = *p;
he = rb_entry(parent, struct hist_entry, rb_node);
cmp = hist_entry__cmp(pair, he);
cmp = hist_entry__cmp(he, pair);
if (!cmp)
goto out;
@ -759,7 +765,7 @@ static struct hist_entry *hists__find_entry(struct hists *hists,
while (n) {
struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node);
int64_t cmp = hist_entry__cmp(he, iter);
int64_t cmp = hist_entry__cmp(iter, he);
if (cmp < 0)
n = n->rb_left;