From nobody Tue Oct 7 07:17:56 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 A40B3224D6 for ; Mon, 14 Jul 2025 00:33:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752453189; cv=none; b=VjgZwgkBEHDHBDCI4Z8E+S2UR+9CVMlijnXZrpQyPaOHNwCG2vvtRqzJDH5igTl6MX/QSjMyJN/g6UoEzjVWcGZ2f7EsXIWuV4hVYbFjQaOm2AP1OcJ4gNs+hmHz7wx3uIFvChDNGnxn78+/+Cc+PP0rvBW9iLrTplg15kiL588= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752453189; c=relaxed/simple; bh=LE+iBiWmq+AZm9ibDmuHdx2AL8mwqjsLFITjU/sERQo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UdPjfvHgJUg9KSimF6yrTfGqTobacnCvmknU7scD6qLt413Wdr6JvsTUq+sTWxeCTsqFhzNDQdRTEqCehSIJStI6W901KWRygxvuNv1Rf+p/wwLb1qE1KitkV4Z9fx4HieQuNRJ/TQx1M9zNHOBqhYxLbElnC21UpluoXgCqkmM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=gKJrGGWS; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="gKJrGGWS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752453186; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EEUx7vMzl3XkfLlDz3SXMfiq0BEVHaSfy+TMgLUqN2Q=; b=gKJrGGWS+sxO2mQW/Zpwwlufq6+YoenuSCVnc2slU3e7NdlM5ohSzEyAuLySr+162hyvgw F1qLSrUvnQTPDlbz6JImlaHt1v/eotw8/rAWVVzieikpQnl9HORn+BPx4htSPfgxTRYj7e Ab/jMKVMQI9+yT2bQkswRSCoIiVBtfY= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-486-cN33CzxAMEWzbBBiwv92Kw-1; Sun, 13 Jul 2025 20:33:00 -0400 X-MC-Unique: cN33CzxAMEWzbBBiwv92Kw-1 X-Mimecast-MFC-AGG-ID: cN33CzxAMEWzbBBiwv92Kw_1752453176 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 2C988195608B; Mon, 14 Jul 2025 00:32:55 +0000 (UTC) Received: from h1.redhat.com (unknown [10.22.64.9]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 91C4E30001BC; Mon, 14 Jul 2025 00:32:40 +0000 (UTC) From: Nico Pache To: linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: david@redhat.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, ryan.roberts@arm.com, dev.jain@arm.com, corbet@lwn.net, rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, akpm@linux-foundation.org, baohua@kernel.org, willy@infradead.org, peterx@redhat.com, wangkefeng.wang@huawei.com, usamaarif642@gmail.com, sunnanyong@huawei.com, vishal.moola@gmail.com, thomas.hellstrom@linux.intel.com, yang@os.amperecomputing.com, kirill.shutemov@linux.intel.com, aarcange@redhat.com, raquini@redhat.com, anshuman.khandual@arm.com, catalin.marinas@arm.com, tiwai@suse.de, will@kernel.org, dave.hansen@linux.intel.com, jack@suse.cz, cl@gentwo.org, jglisse@google.com, surenb@google.com, zokeefe@google.com, hannes@cmpxchg.org, rientjes@google.com, mhocko@suse.com, rdunlap@infradead.org, hughd@google.com Subject: [PATCH v9 01/14] khugepaged: rename hpage_collapse_* to collapse_* Date: Sun, 13 Jul 2025 18:31:54 -0600 Message-ID: <20250714003207.113275-2-npache@redhat.com> In-Reply-To: <20250714003207.113275-1-npache@redhat.com> References: <20250714003207.113275-1-npache@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Content-Type: text/plain; charset="utf-8" The hpage_collapse functions describe functions used by madvise_collapse and khugepaged. remove the unnecessary hpage prefix to shorten the function name. Reviewed-by: Zi Yan Reviewed-by: Baolin Wang Signed-off-by: Nico Pache Acked-by: David Hildenbrand Reviewed-by: Liam R. Howlett --- mm/khugepaged.c | 46 +++++++++++++++++++++++----------------------- 1 file changed, 23 insertions(+), 23 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index a55fb1dcd224..eb0babb51868 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -402,14 +402,14 @@ void __init khugepaged_destroy(void) kmem_cache_destroy(mm_slot_cache); } =20 -static inline int hpage_collapse_test_exit(struct mm_struct *mm) +static inline int collapse_test_exit(struct mm_struct *mm) { return atomic_read(&mm->mm_users) =3D=3D 0; } =20 -static inline int hpage_collapse_test_exit_or_disable(struct mm_struct *mm) +static inline int collapse_test_exit_or_disable(struct mm_struct *mm) { - return hpage_collapse_test_exit(mm) || + return collapse_test_exit(mm) || test_bit(MMF_DISABLE_THP, &mm->flags); } =20 @@ -444,7 +444,7 @@ void __khugepaged_enter(struct mm_struct *mm) int wakeup; =20 /* __khugepaged_exit() must not run from under us */ - VM_BUG_ON_MM(hpage_collapse_test_exit(mm), mm); + VM_BUG_ON_MM(collapse_test_exit(mm), mm); if (unlikely(test_and_set_bit(MMF_VM_HUGEPAGE, &mm->flags))) return; =20 @@ -503,7 +503,7 @@ void __khugepaged_exit(struct mm_struct *mm) } else if (mm_slot) { /* * This is required to serialize against - * hpage_collapse_test_exit() (which is guaranteed to run + * collapse_test_exit() (which is guaranteed to run * under mmap sem read mode). Stop here (after we return all * pagetables will be destroyed) until khugepaged has finished * working on the pagetables under the mmap_lock. @@ -838,7 +838,7 @@ struct collapse_control khugepaged_collapse_control =3D= { .is_khugepaged =3D true, }; =20 -static bool hpage_collapse_scan_abort(int nid, struct collapse_control *cc) +static bool collapse_scan_abort(int nid, struct collapse_control *cc) { int i; =20 @@ -873,7 +873,7 @@ static inline gfp_t alloc_hugepage_khugepaged_gfpmask(v= oid) } =20 #ifdef CONFIG_NUMA -static int hpage_collapse_find_target_node(struct collapse_control *cc) +static int collapse_find_target_node(struct collapse_control *cc) { int nid, target_node =3D 0, max_value =3D 0; =20 @@ -892,7 +892,7 @@ static int hpage_collapse_find_target_node(struct colla= pse_control *cc) return target_node; } #else -static int hpage_collapse_find_target_node(struct collapse_control *cc) +static int collapse_find_target_node(struct collapse_control *cc) { return 0; } @@ -912,7 +912,7 @@ static int hugepage_vma_revalidate(struct mm_struct *mm= , unsigned long address, struct vm_area_struct *vma; unsigned long tva_flags =3D cc->is_khugepaged ? TVA_ENFORCE_SYSFS : 0; =20 - if (unlikely(hpage_collapse_test_exit_or_disable(mm))) + if (unlikely(collapse_test_exit_or_disable(mm))) return SCAN_ANY_PROCESS; =20 *vmap =3D vma =3D find_vma(mm, address); @@ -985,7 +985,7 @@ static int check_pmd_still_valid(struct mm_struct *mm, =20 /* * Bring missing pages in from swap, to complete THP collapse. - * Only done if hpage_collapse_scan_pmd believes it is worthwhile. + * Only done if khugepaged_scan_pmd believes it is worthwhile. * * Called and returns without pte mapped or spinlocks held. * Returns result: if not SCAN_SUCCEED, mmap_lock has been released. @@ -1071,7 +1071,7 @@ static int alloc_charge_folio(struct folio **foliop, = struct mm_struct *mm, { gfp_t gfp =3D (cc->is_khugepaged ? alloc_hugepage_khugepaged_gfpmask() : GFP_TRANSHUGE); - int node =3D hpage_collapse_find_target_node(cc); + int node =3D collapse_find_target_node(cc); struct folio *folio; =20 folio =3D __folio_alloc(gfp, HPAGE_PMD_ORDER, node, &cc->alloc_nmask); @@ -1257,7 +1257,7 @@ static int collapse_huge_page(struct mm_struct *mm, u= nsigned long address, return result; } =20 -static int hpage_collapse_scan_pmd(struct mm_struct *mm, +static int collapse_scan_pmd(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, bool *mmap_locked, struct collapse_control *cc) @@ -1371,7 +1371,7 @@ static int hpage_collapse_scan_pmd(struct mm_struct *= mm, * hit record. */ node =3D folio_nid(folio); - if (hpage_collapse_scan_abort(node, cc)) { + if (collapse_scan_abort(node, cc)) { result =3D SCAN_SCAN_ABORT; goto out_unmap; } @@ -1440,7 +1440,7 @@ static void collect_mm_slot(struct khugepaged_mm_slot= *mm_slot) =20 lockdep_assert_held(&khugepaged_mm_lock); =20 - if (hpage_collapse_test_exit(mm)) { + if (collapse_test_exit(mm)) { /* free mm_slot */ hash_del(&slot->hash); list_del(&slot->mm_node); @@ -1733,7 +1733,7 @@ static void retract_page_tables(struct address_space = *mapping, pgoff_t pgoff) if (find_pmd_or_thp_or_none(mm, addr, &pmd) !=3D SCAN_SUCCEED) continue; =20 - if (hpage_collapse_test_exit(mm)) + if (collapse_test_exit(mm)) continue; /* * When a vma is registered with uffd-wp, we cannot recycle @@ -2255,7 +2255,7 @@ static int collapse_file(struct mm_struct *mm, unsign= ed long addr, return result; } =20 -static int hpage_collapse_scan_file(struct mm_struct *mm, unsigned long ad= dr, +static int collapse_scan_file(struct mm_struct *mm, unsigned long addr, struct file *file, pgoff_t start, struct collapse_control *cc) { @@ -2312,7 +2312,7 @@ static int hpage_collapse_scan_file(struct mm_struct = *mm, unsigned long addr, } =20 node =3D folio_nid(folio); - if (hpage_collapse_scan_abort(node, cc)) { + if (collapse_scan_abort(node, cc)) { result =3D SCAN_SCAN_ABORT; folio_put(folio); break; @@ -2362,7 +2362,7 @@ static int hpage_collapse_scan_file(struct mm_struct = *mm, unsigned long addr, return result; } =20 -static unsigned int khugepaged_scan_mm_slot(unsigned int pages, int *resul= t, +static unsigned int collapse_scan_mm_slot(unsigned int pages, int *result, struct collapse_control *cc) __releases(&khugepaged_mm_lock) __acquires(&khugepaged_mm_lock) @@ -2400,7 +2400,7 @@ static unsigned int khugepaged_scan_mm_slot(unsigned = int pages, int *result, goto breakouterloop_mmap_lock; =20 progress++; - if (unlikely(hpage_collapse_test_exit_or_disable(mm))) + if (unlikely(collapse_test_exit_or_disable(mm))) goto breakouterloop; =20 vma_iter_init(&vmi, mm, khugepaged_scan.address); @@ -2408,7 +2408,7 @@ static unsigned int khugepaged_scan_mm_slot(unsigned = int pages, int *result, unsigned long hstart, hend; =20 cond_resched(); - if (unlikely(hpage_collapse_test_exit_or_disable(mm))) { + if (unlikely(collapse_test_exit_or_disable(mm))) { progress++; break; } @@ -2430,7 +2430,7 @@ static unsigned int khugepaged_scan_mm_slot(unsigned = int pages, int *result, bool mmap_locked =3D true; =20 cond_resched(); - if (unlikely(hpage_collapse_test_exit_or_disable(mm))) + if (unlikely(collapse_test_exit_or_disable(mm))) goto breakouterloop; =20 VM_BUG_ON(khugepaged_scan.address < hstart || @@ -2490,7 +2490,7 @@ static unsigned int khugepaged_scan_mm_slot(unsigned = int pages, int *result, * Release the current mm_slot if this mm is about to die, or * if we scanned all vmas of this mm. */ - if (hpage_collapse_test_exit(mm) || !vma) { + if (collapse_test_exit(mm) || !vma) { /* * Make sure that if mm_users is reaching zero while * khugepaged runs here, khugepaged_exit will find @@ -2544,7 +2544,7 @@ static void khugepaged_do_scan(struct collapse_contro= l *cc) pass_through_head++; if (khugepaged_has_work() && pass_through_head < 2) - progress +=3D khugepaged_scan_mm_slot(pages - progress, + progress +=3D collapse_scan_mm_slot(pages - progress, &result, cc); else progress =3D pages; --=20 2.50.0