linux-kernel - [PATCH] tools:cgroup:memcg_shrinker remove redundant import

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Message-Id: <20230108105023.4289-1-apantykhin@gmail.com>
Date:   Sun,  8 Jan 2023 15:50:23 +0500
From:   Alexander Pantyukhin <apantykhin@...il.com>
To:     akpm@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org, roman.gushchin@...ux.dev,
        Alexander Pantyukhin <apantykhin@...il.com>
Subject: [PATCH] tools:cgroup:memcg_shrinker remove redundant import

Remove redundant import of the sys module.

Also use the sort function  instead of sorted.
It sorts the direct array without create the new one in memory.

Signed-off-by: Alexander Pantyukhin <apantykhin@...il.com>
---
 tools/cgroup/memcg_shrinker.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/cgroup/memcg_shrinker.py b/tools/cgroup/memcg_shrinker.py
index 706ab27666a4..e81c3017ada9 100644
--- a/tools/cgroup/memcg_shrinker.py
+++ b/tools/cgroup/memcg_shrinker.py
@@ -5,7 +5,6 @@
 
 import os
 import argparse
-import sys
 
 
 def scan_cgroups(cgroup_root):
@@ -44,7 +43,7 @@ def main():
 
     cgroups = scan_cgroups("/sys/fs/cgroup/")
     shrinkers = scan_shrinkers("/sys/kernel/debug/shrinker/")
-    shrinkers = sorted(shrinkers, reverse = True, key = lambda x: x[0])
+    shrinkers.sort(reverse = True, key = lambda x: x[0])
 
     n = 0
     for s in shrinkers:
-- 
2.25.1