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perf lock contention: Add and use LCB_F_TYPE_MASK

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This is a preparation for the later change.  It'll use more bits in the
flags so let's rename the type part and use the mask to extract the
type.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Chun-Tse Shao <ctshao@google.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Song Liu <song@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/r/20241220060009.507297-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
2024-12-19 22:00:06 -08:00
committed by Arnaldo Carvalho de Melo
parent efff5add20
commit d8cc6da406
2 changed files with 4 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/builtin-lock.c
View File

@@ -1490,7 +1490,7 @@ static const struct {
static const char *get_type_str(unsigned int flags)
{
flags &= LCB_F_MAX_FLAGS - 1;
flags &= LCB_F_TYPE_MASK;
for (unsigned int i = 0; i < ARRAY_SIZE(lock_type_table); i++) {
if (lock_type_table[i].flags == flags)
@@ -1501,7 +1501,7 @@ static const char *get_type_str(unsigned int flags)
static const char *get_type_name(unsigned int flags)
{
flags &= LCB_F_MAX_FLAGS - 1;
flags &= LCB_F_TYPE_MASK;
for (unsigned int i = 0; i < ARRAY_SIZE(lock_type_table); i++) {
if (lock_type_table[i].flags == flags)

3
tools/perf/util/bpf_skel/lock_data.h
View File

@@ -32,7 +32,8 @@ struct contention_task_data {
#define LCD_F_MMAP_LOCK (1U << 31)
#define LCD_F_SIGHAND_LOCK (1U << 30)
#define LCB_F_MAX_FLAGS (1U << 7)
#define LCB_F_TYPE_MAX (1U << 7)
#define LCB_F_TYPE_MASK 0x0000007FU
struct contention_data {
u64 total_time;