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[2003:d8:2f28:de00:1efe:3ea4:63ba:1713]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4563b74f9c0sm135998155e9.28.2025.07.22.08.39.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Jul 2025 08:39:54 -0700 (PDT) Message-ID: <0ab2aebd-a43d-4ef2-a91e-10eae593de67@redhat.com> Date: Tue, 22 Jul 2025 17:39:52 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v9 12/14] khugepaged: improve tracepoints for mTHP orders To: Nico Pache , linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: 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 References: <20250714003207.113275-1-npache@redhat.com> <20250714003207.113275-13-npache@redhat.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: E312F40003 X-Stat-Signature: o867zi44gkibnqd4ugf4xa6ybz7afx6k X-HE-Tag: 1753198803-404239 X-HE-Meta: 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 JnyPx8sJ 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 14.07.25 02:32, Nico Pache wrote: > Add the order to the tracepoints to give better insight into what order > is being operated at for khugepaged. > > Reviewed-by: Baolin Wang > Signed-off-by: Nico Pache > --- [...] > > TRACE_EVENT(mm_collapse_huge_page_swapin, > > - TP_PROTO(struct mm_struct *mm, int swapped_in, int referenced, int ret), > + TP_PROTO(struct mm_struct *mm, int swapped_in, int referenced, int ret, > + int order), Indentation. [...] > +++ b/mm/khugepaged.c > @@ -711,13 +711,14 @@ static int __collapse_huge_page_isolate(struct vm_area_struct *vma, > } else { > result = SCAN_SUCCEED; > trace_mm_collapse_huge_page_isolate(folio, none_or_zero, > - referenced, writable, result); > + referenced, writable, result, > + order); > return result; > } > out: > release_pte_pages(pte, _pte, compound_pagelist); > trace_mm_collapse_huge_page_isolate(folio, none_or_zero, > - referenced, writable, result); > + referenced, writable, result, order); > return result; > } > > @@ -1097,7 +1098,8 @@ static int __collapse_huge_page_swapin(struct mm_struct *mm, > > result = SCAN_SUCCEED; > out: > - trace_mm_collapse_huge_page_swapin(mm, swapped_in, referenced, result); > + trace_mm_collapse_huge_page_swapin(mm, swapped_in, referenced, result, > + order); Dito. Acked-by: David Hildenbrand -- Cheers, David / dhildenb