From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 E72EB339872 for ; Tue, 15 Sep 2026 04:36:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789446981; cv=none; b=IbkvAB3X18bnvaNwh558zetaKCZDUiI8pygrOmjklglyQdXULHWIxaVEREE9xguZ4ybHGMRK/b3BdJUMpOxTzbDMNcD0kYtdS2WJAfmGDTCNmG6sCQZ5rh5KsMPZP3b5iqj5kZPersEL8Rvd3m2EfQfoUeuonreqnK/zlecS3WU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789446981; c=relaxed/simple; bh=sXGMiLcTdaV17UxDS2Jg/YJ8mKpvR20j2yXMSeG6jFs=; h=Date:To:From:Subject:Message-Id; b=LekOAPbXLl+WmGG65bLWAyWgTZxAUMUTLjplG9l6Uw8uVq5CplRz5B0C97ZF4mk4TgWA3BwhWaW6fLzzx0WUeNyJsE03FrRJ47tMq28eSlHqSRYkFKgAIuX8J418HhYOWUqkUmifUdgpYp17EaabL5gBFHgeihy/s4o/mavtmFo= 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=smoCWsSy; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="smoCWsSy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 69CA51F000FF; Tue, 15 Sep 2026 04:36:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1789446979; bh=c+julmaGDcuBiXSNDIR6PYSQv/a1NVO1tO3rGh/SH9w=; h=Date:To:From:Subject; b=smoCWsSyJ8Aw4uGmP1N1XzHQx/xodLW9J2ri2QGd9Fd0rW28P4KUY9/iPM94AX1p9 ehAS6MwK5zNAKagF46FLZ2Oc0T9n9T2PvhP5o3fEC5sr7WguFLeEKctsa8+azW9NoI pjKN30v+NN9e1QGIGO61RPJONdehavevpPH62IQ8= Date: Mon, 14 Sep 2026 21:36:18 -0700 To: mm-commits@vger.kernel.org,urezki@gmail.com,liuye@kylinos.cn,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-vmalloc-extract-show_busy_info-from-vmalloc_info_show.patch added to mm-new branch Message-Id: <20260915043619.69CA51F000FF@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/vmalloc: extract show_busy_info from vmalloc_info_show has been added to the -mm mm-new branch. Its filename is mm-vmalloc-extract-show_busy_info-from-vmalloc_info_show.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmalloc-extract-show_busy_info-from-vmalloc_info_show.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 If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is 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: Ye Liu Subject: mm/vmalloc: extract show_busy_info from vmalloc_info_show Date: Mon, 14 Sep 2026 11:34:02 +0800 Patch series "mm/vmalloc: minor cleanups". Small cleanup series for mm/vmalloc.c, no functional changes: - Group xa_init() with the other vmap_block_queue field initializations in vmalloc_init(), instead of after the unrelated vfree_deferred setup. - Extract vmap_insert_free_area() helper to deduplicate the allocate- and-insert pattern that appeared both inside the loop body and after the loop in vmap_init_free_space(). - Extract show_busy_info() from vmalloc_info_show(), mirroring the existing show_purge_info() pattern, so the top-level show function only orchestrates the two data sources. This patch (of 3): Extract the busy vmap area iteration into show_busy_info, mirroring the existing show_purge_info pattern. Link: https://lore.kernel.org/20260914-vmalloc_study-v1-0-526f68559706@linux.dev Link: https://lore.kernel.org/20260914-vmalloc_study-v1-3-526f68559706@linux.dev Signed-off-by: Ye Liu Signed-off-by: Andrew Morton Reviewed-by: Uladzislau Rezki (Sony) --- mm/vmalloc.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) --- a/mm/vmalloc.c~mm-vmalloc-extract-show_busy_info-from-vmalloc_info_show +++ a/mm/vmalloc.c @@ -5345,12 +5345,12 @@ static void show_purge_info(struct seq_f } } -static int vmalloc_info_show(struct seq_file *m, void *p) +static void show_busy_info(struct seq_file *m) { struct vmap_node *vn; struct vmap_area *va; struct vm_struct *v; - unsigned int *counters; + unsigned int *counters = NULL; if (IS_ENABLED(CONFIG_NUMA)) counters = kmalloc_array(nr_node_ids, sizeof(unsigned int), GFP_KERNEL); @@ -5415,12 +5415,18 @@ static int vmalloc_info_show(struct seq_ spin_unlock(&vn->busy.lock); } + if (IS_ENABLED(CONFIG_NUMA)) + kfree(counters); +} + +static int vmalloc_info_show(struct seq_file *m, void *p) +{ + show_busy_info(m); + /* * As a final step, dump "unpurged" areas. */ show_purge_info(m); - if (IS_ENABLED(CONFIG_NUMA)) - kfree(counters); return 0; } _ Patches currently in -mm which might be from liuye@kylinos.cn are mm-vmalloc-fix-vmap_purge_lock-livelock-under-memory-pressure.patch tools-mm-page_owner_sort-fix-sort-option-being-silently-ignored.patch tools-mm-page_owner_sort-add-module-name-sort-cull-filter-support.patch tools-mm-page_owner_sort-show-available-sort-keys-in-usage-text.patch mm-oom_kill-remove-unreachable-__gfp_thisnode-check-in-constrained_alloc.patch mm-oom_kill-proc-replace-magic-number-1000-with-oom_score_adj_max.patch mm-page_table_check-add-explicit-pmd_none-check-in-pte_clear_range.patch mm-vmalloc-extract-show_busy_info-from-vmalloc_info_show.patch mm-vmalloc-group-xa_init-with-vbq-field-initializations.patch mm-vmalloc-extract-vmap_insert_free_area-helper.patch