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 3F3223644D1 for ; Fri, 30 Jan 2026 17:35:05 +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=1769794506; cv=none; b=dm3naHPJ/T8N8T2pOac5M7dMIm7dpAAFbO3pKi7GmIb3mdfxAFGRY8UfVo33HVx8S3RtZmj6A+BgeLzo8qI4m+Y3SqMWA43XMt1ATjyLKrE9FE4xFkQN3aemF2F4H6GVVGNOxFP0ftq/p7A4v+Ug75inpqJvAudF4mVEhUyEaoo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769794506; c=relaxed/simple; bh=yHyM4rM0Gea1Oo+oX3q3Z0ObBNFadqwUjn6a/fxa9LQ=; h=Date:To:From:Subject:Message-Id; b=P0XtVwpPNbNd5d9pPeXZntRxMcp4Y9UUmNSyQDqxJG+8YL3dLMOFBUi8JXeYfiLDf8kQvFCiw+aY9ocXLxu/kCR9zpAJpJ5Bvq394iKt9U2m6qHblnJAmvplBHUUutI5MZ/bIcsG3ek7nJUGtX5132VA4OV0CTpcQmld5h2MXT8= 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=rWyJSL8n; 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="rWyJSL8n" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A7BC3C116C6; Fri, 30 Jan 2026 17:35:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1769794505; bh=yHyM4rM0Gea1Oo+oX3q3Z0ObBNFadqwUjn6a/fxa9LQ=; h=Date:To:From:Subject:From; b=rWyJSL8nVjZ+klWnKQzZjAskMFg3FmLX9oBOXIvV2VlL+HDQFwYmedQTRKmTTGUik Qh5a6DF5IaC12b5D6esHmTmYpsBCNqperXig8fDvWMjvptzLV877TFxnV1woj7xLr7 Lakcot1vLI9ddxHd0VQNjA1tw2AKYFiS22lppP2g= Date: Fri, 30 Jan 2026 09:35:05 -0800 To: mm-commits@vger.kernel.org,sj@kernel.org,lirongqing@baidu.com,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-remove-__read_mostly-from-memory_idle_ms_percentiles.patch added to mm-new branch Message-Id: <20260130173505.A7BC3C116C6@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/damon/stat: remove __read_mostly from memory_idle_ms_percentiles has been added to the -mm mm-new branch. Its filename is mm-damon-remove-__read_mostly-from-memory_idle_ms_percentiles.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-remove-__read_mostly-from-memory_idle_ms_percentiles.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Li RongQing Subject: mm/damon/stat: remove __read_mostly from memory_idle_ms_percentiles Date: Fri, 30 Jan 2026 03:56:03 -0500 The 'memory_idle_ms_percentiles' array in DAMON_STAT is updated frequently by the kernel to reflect the latest idle time statistics. Marking it as '__read_mostly' is inappropriate for data that is regularly written to, as it can lead to cache pollution in the read-mostly section. Remove the '__read_mostly' annotation to accurately reflect the variable's usage pattern. Link: https://lkml.kernel.org/r/20260130085603.1814-1-lirongqing@baidu.com Signed-off-by: Li RongQing Reviewed-by: SeongJae Park Signed-off-by: Andrew Morton --- mm/damon/stat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/damon/stat.c~mm-damon-remove-__read_mostly-from-memory_idle_ms_percentiles +++ a/mm/damon/stat.c @@ -34,7 +34,7 @@ module_param(estimated_memory_bandwidth, MODULE_PARM_DESC(estimated_memory_bandwidth, "Estimated memory bandwidth usage in bytes per second"); -static long memory_idle_ms_percentiles[101] __read_mostly = {0,}; +static long memory_idle_ms_percentiles[101] = {0,}; module_param_array(memory_idle_ms_percentiles, long, NULL, 0400); MODULE_PARM_DESC(memory_idle_ms_percentiles, "Memory idle time percentiles in milliseconds"); _ Patches currently in -mm which might be from lirongqing@baidu.com are mm-damon-remove-__read_mostly-from-memory_idle_ms_percentiles.patch