From: Casey Chen <cachen@purestorage.com>
To: linux-mm@kvack.org
Cc: surenb@google.com, kent.overstreet@linux.dev,
yzhong@purestorage.com, Casey Chen <cachen@purestorage.com>
Subject: [PATCH] alloc_tag: check mem_profiling_support in alloc_tag_init
Date: Wed, 7 May 2025 13:14:23 -0600 [thread overview]
Message-ID: <20250507191423.45795-1-cachen@purestorage.com> (raw)
If mem_profiling_support is false, for example, when
sysctl.vm.mem_profiling=never, alloc_tag_init should skip
allocating module tags and other operations.
Signed-off-by: Casey Chen <cachen@purestorage.com>
Reviewed-by: Yuanyuan Zhong <yzhong@purestorage.com>
---
lib/alloc_tag.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/lib/alloc_tag.c b/lib/alloc_tag.c
index 25ecc1334b67..232082085a95 100644
--- a/lib/alloc_tag.c
+++ b/lib/alloc_tag.c
@@ -762,6 +762,11 @@ static int __init alloc_tag_init(void)
};
int res;
+ if (!mem_profiling_support) {
+ pr_info("Memory allocation profiling is not supported!\n");
+ return 0;
+ }
+
res = alloc_mod_tags_mem();
if (res)
return res;
--
2.49.0
next reply other threads:[~2025-05-07 19:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-07 19:14 Casey Chen [this message]
2025-05-08 23:11 ` Suren Baghdasaryan
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