From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A498627281D for ; Sun, 21 Sep 2025 21:27:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758490022; cv=none; b=gLwlnTqL4pGDlV/RYWlXvVdOiZ7qrHYfi8B6odzC7lifCfiTCjm/P0faxUcNzlfjqoUtdOvt0nL/qjWtWz29i9rmVh8VqgoKplPGQksTVwgnyrnIKxwS2031/OtqcznAed9T+5tlgSaG65ci/NlMrsU80G2GPd0Nfa9QTmbL9uI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758490022; c=relaxed/simple; bh=6FsvT1HKKilUav+WISCuIQgpxKu2Ipj674sa24wIEf4=; h=Date:To:From:Subject:Message-Id; b=Eky48lNT0vLMtRliqqdawWUooQFLQ4BevGqZhugXOM1AK/C7hq1feolPuRthStCvoVlIG9OfqbYjOOMggdgFuzaOC8MTDx3iahd+GjlFz4PIQzBgOdsIPlLmnY5Uk3TNPemlM5sU2Iya24hmzIXdq4sPiShyObRS6nNvkJVPxOY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=CyE4J3ya; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="CyE4J3ya" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7987FC4CEE7; Sun, 21 Sep 2025 21:27:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1758490022; bh=6FsvT1HKKilUav+WISCuIQgpxKu2Ipj674sa24wIEf4=; h=Date:To:From:Subject:From; b=CyE4J3ya2rL7YvDPQcj49v/dOXANu/bZ+RKuUw9li5TT48sndZ0vzt6obhzebvnFT pZuwwfM80VujJ/W1VMF1rnmNQpWxq5JsyDh6YKKiHUjXxgapSFc+YQGWL5qrwSzgw9 h1sRf9dnMYLN652z4cCu5kxpkXfhPITgYxix24Ks= Date: Sun, 21 Sep 2025 14:27:01 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-damon-stat-use-damon_initialized.patch removed from -mm tree Message-Id: <20250921212702.7987FC4CEE7@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/damon/stat: use damon_initialized() has been removed from the -mm tree. Its filename was mm-damon-stat-use-damon_initialized.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: SeongJae Park Subject: mm/damon/stat: use damon_initialized() Date: Mon, 15 Sep 2025 20:35:06 -0700 DAMON_STAT is assuming DAMON is ready to use in module_init time, and uses its own hack to see if it is the time. Use damon_initialized(), which is a way for seeing if DAMON is ready to be used that is more reliable and better to maintain instead of the hack. Link: https://lkml.kernel.org/r/20250916033511.116366-3-sj@kernel.org Signed-off-by: SeongJae Park Signed-off-by: Andrew Morton --- mm/damon/stat.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) --- a/mm/damon/stat.c~mm-damon-stat-use-damon_initialized +++ a/mm/damon/stat.c @@ -214,8 +214,6 @@ static void damon_stat_stop(void) damon_destroy_ctx(damon_stat_context); } -static bool damon_stat_init_called; - static int damon_stat_enabled_store( const char *val, const struct kernel_param *kp) { @@ -229,7 +227,7 @@ static int damon_stat_enabled_store( if (is_enabled == enabled) return 0; - if (!damon_stat_init_called) + if (!damon_initialized()) /* * probably called from command line parsing (parse_args()). * Cannot call damon_new_ctx(). Let damon_stat_init() handle. @@ -250,12 +248,16 @@ static int __init damon_stat_init(void) { int err = 0; - damon_stat_init_called = true; + if (!damon_initialized()) { + err = -ENOMEM; + goto out; + } /* probably set via command line */ if (enabled) err = damon_stat_start(); +out: if (err && enabled) enabled = false; return err; _ Patches currently in -mm which might be from sj@kernel.org are mm-damon-sysfs-set-damon_ctx-min_sz_region-only-for-paddr-use-case.patch