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 [thread overview]
Message-ID: <20230719075127.47736-5-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20230719075127.47736-1-wangkefeng.wang@huawei.com>
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
next prev parent reply other threads:[~2023-07-19 7:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-19 7:51 [PATCH v2 0/4] mm: convert to vma_is_initial_heap/stack() Kefeng Wang
2023-07-19 7:51 ` [PATCH v2 1/4] mm: factor out VMA stack and heap checks Kefeng Wang
2023-07-19 8:18 ` David Hildenbrand
2023-07-19 7:51 ` [PATCH v2 2/4] drm/amdkfd: use vma_is_initial_stack() and vma_is_initial_heap() Kefeng Wang
2023-07-19 8:18 ` David Hildenbrand
2023-07-19 14:24 ` Felix Kuehling
2023-07-19 7:51 ` [PATCH v2 3/4] selinux: " Kefeng Wang
2023-07-19 8:18 ` David Hildenbrand
2023-07-19 9:02 ` Christian Göttsche
2023-07-19 10:22 ` Kefeng Wang
2023-07-19 15:25 ` Paul Moore
2023-07-20 8:28 ` Kefeng Wang
2023-07-20 21:16 ` Paul Moore
2023-07-19 7:51 ` Kefeng Wang [this message]
2023-07-19 8:21 ` [PATCH v2 4/4] perf/core: " David Hildenbrand
2023-07-19 9:29 ` Peter Zijlstra
2023-07-19 10:26 ` Kefeng Wang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230719075127.47736-5-wangkefeng.wang@huawei.com \
--to=wangkefeng.wang@huawei.com \
--cc=acme@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=amd-gfx@lists.freedesktop.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=selinux@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).