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 0AF1214B977 for ; Thu, 2 Jul 2026 00:11:50 +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=1782951112; cv=none; b=r/AhBvbcFSzMvwFI32iV+HWl4YIPGlW4T4yHDTuGauvNznm85Dujc2npKIZvBPl7ZYfhwMhFC3d41IDtEdgRRFS8I33d7oRYmuJ88WBJGOJl1mVqYLvD+rnFEOa0zS/3cfbg2rmaImWVvspfT3r5gRoU/xLJyrsdgZB/tSMgqws= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782951112; c=relaxed/simple; bh=Dt9ST8h5FCv5mtOI45pUhdOQxE4uDhPkHfLeXqZA1x0=; h=Date:To:From:Subject:Message-Id; b=sFHj6tZeocV0LwKji6k1Nr1cllg/5y9hLa4CGMbkzBseozTi/7zw9bIhhrj0ph7/9ShqtpH6nne31ZpRr6mXbRr/+fhfDqOqPdHN/filfXmjJ2L74EwymfrSOuEBxptdfBzNv+dps1SYrJ6c4Hmr1Mk7U+TrOo9eoVEwlwK+V34= 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=bsXwCQCy; 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="bsXwCQCy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A12CB1F000E9; Thu, 2 Jul 2026 00:11:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1782951110; bh=nEUy842ROfCtLi+UPlk9yfNO+Co8lXsqtbqayJ2IcjU=; h=Date:To:From:Subject; b=bsXwCQCy0+jSqJF1y6bSEJykuH/V6umumLNjRysO/G2hcjFJJ3PthB+57YQGPrkzw NYIGTkC5ngi6fpZ7zga54hcdi5qqQBOlGbsFvcRRUCuSSVUPwpN0fiX/qFQsDdq9Ak SgHbNK3SxnYwMZrZMTvs70OLIsWTqbWIPsbUQ3d0= Date: Wed, 01 Jul 2026 17:11:50 -0700 To: mm-commits@vger.kernel.org,ye.liu@linux.dev,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch added to mm-unstable branch Message-Id: <20260702001150.A12CB1F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/page_owner: drop redundant page_owner prefix from static symbols has been added to the -mm mm-unstable branch. Its filename is mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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/page_owner: drop redundant page_owner prefix from static symbols Date: Wed, 1 Jul 2026 14:10:50 +0800 All of these symbols are file-scoped (static) in page_owner.c, so the page_owner_ prefix is pure noise. Rename them to shorter, still-clear names: page_owner_stack_op -> stack_op page_owner_stack_open -> stack_open page_owner_stack_fops -> stack_fops page_owner_pages_threshold -> pages_threshold page_owner_threshold_get -> threshold_get page_owner_threshold_set -> threshold_set page_owner_threshold_fops -> threshold_fops No functional change. Link: https://lore.kernel.org/20260701061101.344679-8-ye.liu@linux.dev Signed-off-by: Ye Liu Acked-by: Zi Yan Reviewed-by: Vlastimil Babka (SUSE) Cc: Brendan Jackman Cc: Johannes Weiner Cc: Michal Hocko Cc: Suren Baghdasaryan Cc: Lorenzo Stoakes Signed-off-by: Andrew Morton --- mm/page_owner.c | 34 ++++++++++++++++------------------ 1 file changed, 16 insertions(+), 18 deletions(-) --- a/mm/page_owner.c~mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols +++ a/mm/page_owner.c @@ -894,7 +894,7 @@ static void *stack_next(struct seq_file return stack; } -static unsigned long page_owner_pages_threshold; +static unsigned long pages_threshold; static int stack_print(struct seq_file *m, void *v) { @@ -911,7 +911,7 @@ static int stack_print(struct seq_file * nr_base_pages = refcount_read(&stack_record->count) - 1; if (ctx->flags & STACK_PRINT_FLAG_PAGES && - (nr_base_pages < 1 || nr_base_pages < page_owner_pages_threshold)) + (nr_base_pages < 1 || nr_base_pages < pages_threshold)) return 0; if (ctx->flags & STACK_PRINT_FLAG_STACK) { @@ -933,16 +933,16 @@ static void stack_stop(struct seq_file * { } -static const struct seq_operations page_owner_stack_op = { +static const struct seq_operations stack_op = { .start = stack_start, .next = stack_next, .stop = stack_stop, .show = stack_print }; -static int page_owner_stack_open(struct inode *inode, struct file *file) +static int stack_open(struct inode *inode, struct file *file) { - int ret = seq_open_private(file, &page_owner_stack_op, + int ret = seq_open_private(file, &stack_op, sizeof(struct stack_print_ctx)); if (!ret) { @@ -955,28 +955,26 @@ static int page_owner_stack_open(struct return ret; } -static const struct file_operations page_owner_stack_fops = { - .open = page_owner_stack_open, +static const struct file_operations stack_fops = { + .open = stack_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release_private, }; -static int page_owner_threshold_get(void *data, u64 *val) +static int threshold_get(void *data, u64 *val) { - *val = READ_ONCE(page_owner_pages_threshold); + *val = READ_ONCE(pages_threshold); return 0; } -static int page_owner_threshold_set(void *data, u64 val) +static int threshold_set(void *data, u64 val) { - WRITE_ONCE(page_owner_pages_threshold, val); + WRITE_ONCE(pages_threshold, val); return 0; } -DEFINE_SIMPLE_ATTRIBUTE(page_owner_threshold_fops, &page_owner_threshold_get, - &page_owner_threshold_set, "%llu\n"); - +DEFINE_SIMPLE_ATTRIBUTE(threshold_fops, &threshold_get, &threshold_set, "%llu\n"); static int __init pageowner_init(void) { @@ -992,17 +990,17 @@ static int __init pageowner_init(void) debugfs_create_file("show_stacks", 0400, dir, (void *)(STACK_PRINT_FLAG_STACK | STACK_PRINT_FLAG_PAGES), - &page_owner_stack_fops); + &stack_fops); debugfs_create_file("show_handles", 0400, dir, (void *)(STACK_PRINT_FLAG_HANDLE | STACK_PRINT_FLAG_PAGES), - &page_owner_stack_fops); + &stack_fops); debugfs_create_file("show_stacks_handles", 0400, dir, (void *)(STACK_PRINT_FLAG_STACK | STACK_PRINT_FLAG_HANDLE), - &page_owner_stack_fops); + &stack_fops); debugfs_create_file("count_threshold", 0600, dir, NULL, - &page_owner_threshold_fops); + &threshold_fops); return 0; } late_initcall(pageowner_init) _ Patches currently in -mm which might be from ye.liu@linux.dev are mm-page_owner-extract-skip_buddy_pages-helper-to-unify-buddy-page-skipping.patch mm-page_owner-add-mr_never-to-enum-migrate_reason-and-use-it-for-last_migrate_reason.patch mm-use-enum-migrate_reason-instead-of-int-for-migration-reason-parameters.patch mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch mm-page_owner-add-missing-newline-to-count_threshold-format-string.patch mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch mm-page_owner-clamp-skip_buddy_pages-pfn-advance-at-max_order_nr_pages-boundary.patch mm-page_owner-use-memcg_data-snapshot-instead-of-pagememcgkmem-to-avoid-toctou-vm_bug_on.patch