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From:   Kefeng Wang <wangkefeng.wang@huawei.com>
To:     Andrew Morton <akpm@linux-foundation.org>
CC:     <amd-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org>,
        <linux-kernel@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>,
        <linux-mm@kvack.org>, <linux-perf-users@vger.kernel.org>,
        <selinux@vger.kernel.org>,
        Kefeng Wang <wangkefeng.wang@huawei.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: [PATCH v2 4/4] perf/core: use vma_is_initial_stack() and vma_is_initial_heap()
Date:   Wed, 19 Jul 2023 15:51:14 +0800
Message-ID: <20230719075127.47736-5-wangkefeng.wang@huawei.com>
In-Reply-To: <20230719075127.47736-1-wangkefeng.wang@huawei.com>
References: <20230719075127.47736-1-wangkefeng.wang@huawei.com>
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Use the helpers to simplify code, also kill unneeded goto cpy_name.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 kernel/events/core.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 78ae7b6f90fd..d59f6327472f 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -8685,22 +8685,14 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 		}
 
 		name = (char *)arch_vma_name(vma);
-		if (name)
-			goto cpy_name;
-
-		if (vma->vm_start <= vma->vm_mm->start_brk &&
-				vma->vm_end >= vma->vm_mm->brk) {
-			name = "[heap]";
-			goto cpy_name;
+		if (!name) {
+			if (vma_is_initial_heap(vma))
+				name = "[heap]";
+			else if (vma_is_initial_stack(vma))
+				name = "[stack]";
+			else
+				name = "//anon";
 		}
-		if (vma->vm_start <= vma->vm_mm->start_stack &&
-				vma->vm_end >= vma->vm_mm->start_stack) {
-			name = "[stack]";
-			goto cpy_name;
-		}
-
-		name = "//anon";
-		goto cpy_name;
 	}
 
 cpy_name:
-- 
2.27.0