perf maps: Merge 'struct maps' with 'struct map_groups'

And pick the shortest name: 'struct maps'.

The split existed because we used to have two groups of maps, one for
functions and one for variables, but that only complicated things,
sometimes we needed to figure out what was at some address and then had
to first try it on the functions group and if that failed, fall back to
the variables one.

That split is long gone, so for quite a while we had only one struct
maps per struct map_groups, simplify things by combining those structs.

First patch is the minimum needed to merge both, follow up patches will
rename 'thread->mg' to 'thread->maps', etc.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-hom6639ro7020o708trhxh59@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

6 files changed, 7 insertions, 8 deletions

diff --git a/tools/perf/arch/arm/tests/dwarf-unwind.c b/tools/perf/arch/arm/tests/dwarf-unwind.c
index 2c35e532bc9a..026737243766 100644
--- a/tools/perf/arch/arm/tests/dwarf-unwind.c
+++ b/tools/perf/arch/arm/tests/dwarf-unwind.c
@@ -26,7 +26,7 @@ static int sample_ustack(struct perf_sample *sample,
 
 	sp = (unsigned long) regs[PERF_REG_ARM_SP];
 
-	map = map_groups__find(thread->mg, (u64)sp);
+	map = maps__find(thread->mg, (u64)sp);
 	if (!map) {
 		pr_debug("failed to get stack map\n");
 		free(buf);
diff --git a/tools/perf/arch/arm64/tests/dwarf-unwind.c b/tools/perf/arch/arm64/tests/dwarf-unwind.c
index a6a407fa1b8b..886489632d17 100644
--- a/tools/perf/arch/arm64/tests/dwarf-unwind.c
+++ b/tools/perf/arch/arm64/tests/dwarf-unwind.c
@@ -26,7 +26,7 @@ static int sample_ustack(struct perf_sample *sample,
 
 	sp = (unsigned long) regs[PERF_REG_ARM64_SP];
 
-	map = map_groups__find(thread->mg, (u64)sp);
+	map = maps__find(thread->mg, (u64)sp);
 	if (!map) {
 		pr_debug("failed to get stack map\n");
 		free(buf);
diff --git a/tools/perf/arch/powerpc/tests/dwarf-unwind.c b/tools/perf/arch/powerpc/tests/dwarf-unwind.c
index 5c178e4a1995..b38117c50040 100644
--- a/tools/perf/arch/powerpc/tests/dwarf-unwind.c
+++ b/tools/perf/arch/powerpc/tests/dwarf-unwind.c
@@ -27,7 +27,7 @@ static int sample_ustack(struct perf_sample *sample,
 
 	sp = (unsigned long) regs[PERF_REG_POWERPC_R1];
 
-	map = map_groups__find(thread->mg, (u64)sp);
+	map = maps__find(thread->mg, (u64)sp);
 	if (!map) {
 		pr_debug("failed to get stack map\n");
 		free(buf);
diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c
index 2a6662e42f89..57be973aea74 100644
--- a/tools/perf/arch/s390/annotate/instructions.c
+++ b/tools/perf/arch/s390/annotate/instructions.c
@@ -38,7 +38,7 @@ static int s390_call__parse(struct arch *arch, struct ins_operands *ops,
 		return -1;
 	target.addr = map__objdump_2mem(map, ops->target.addr);
 
-	if (map_groups__find_ams(ms->mg, &target) == 0 &&
+	if (maps__find_ams(ms->mg, &target) == 0 &&
 	    map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
 		ops->target.sym = target.ms.sym;
 
diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c
index 6ad0a1cedb13..f52132ed7a8c 100644
--- a/tools/perf/arch/x86/tests/dwarf-unwind.c
+++ b/tools/perf/arch/x86/tests/dwarf-unwind.c
@@ -27,7 +27,7 @@ static int sample_ustack(struct perf_sample *sample,
 
 	sp = (unsigned long) regs[PERF_REG_X86_SP];
 
-	map = map_groups__find(thread->mg, (u64)sp);
+	map = maps__find(thread->mg, (u64)sp);
 	if (!map) {
 		pr_debug("failed to get stack map\n");
 		free(buf);
diff --git a/tools/perf/arch/x86/util/event.c b/tools/perf/arch/x86/util/event.c
index d1044df7c0d7..ac45015cc6ba 100644
--- a/tools/perf/arch/x86/util/event.c
+++ b/tools/perf/arch/x86/util/event.c
@@ -18,8 +18,7 @@ int perf_event__synthesize_extra_kmaps(struct perf_tool *tool,
 {
 	int rc = 0;
 	struct map *pos;
-	struct map_groups *kmaps = &machine->kmaps;
-	struct maps *maps = &kmaps->maps;
+	struct maps *kmaps = &machine->kmaps;
 	union perf_event *event = zalloc(sizeof(event->mmap) +
 					 machine->id_hdr_size);
 
@@ -29,7 +28,7 @@ int perf_event__synthesize_extra_kmaps(struct perf_tool *tool,
 		return -1;
 	}
 
-	maps__for_each_entry(maps, pos) {
+	maps__for_each_entry(kmaps, pos) {
 		struct kmap *kmap;
 		size_t size;