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Sun, 08 Jun 2025 12:50:53 -0700 (PDT) MIME-Version: 1.0 References: <20250515032226.128900-1-npache@redhat.com> <20250515032226.128900-13-npache@redhat.com> In-Reply-To: From: Nico Pache Date: Sun, 8 Jun 2025 13:50:27 -0600 X-Gm-Features: AX0GCFubrwAxCeJO6WQ3ctfkybHkm-zGqyO1Fes9K65B6S5xXXinZkRMQU9vx5Y Message-ID: Subject: Re: [PATCH v7 12/12] Documentation: mm: update the admin guide for mTHP collapse To: Dev Jain Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, david@redhat.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, ryan.roberts@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, Bagas Sanjaya X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: _tnQPQmcuox7Ogu3OySvOikoVtulHRroXnlOGZ1hpUU_1749412254 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Stat-Signature: ew6xup511ahbcgzmxdih91eib8sjkdot X-Rspamd-Queue-Id: CC378C0002 X-Rspamd-Server: rspam11 X-HE-Tag: 1749412256-391823 X-HE-Meta: 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 azawE4A3 WmGyNNaiyLIo1GRDuXoj7mSkUmw== 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 Sat, Jun 7, 2025 at 8:35=E2=80=AFAM Dev Jain wrote: > > > On 07/06/25 6:27 pm, Nico Pache wrote: > > On Sat, Jun 7, 2025 at 12:45=E2=80=AFAM Dev Jain wro= te: > >> > >> On 15/05/25 8:52 am, Nico Pache wrote: > >> > >> Now that we can collapse to mTHPs lets update the admin guide to > >> reflect these changes and provide proper guidence on how to utilize it= . > >> > >> Reviewed-by: Bagas Sanjaya > >> Signed-off-by: Nico Pache > >> --- > >> Documentation/admin-guide/mm/transhuge.rst | 14 +++++++++++++- > >> 1 file changed, 13 insertions(+), 1 deletion(-) > >> > >> diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentatio= n/admin-guide/mm/transhuge.rst > >> index dff8d5985f0f..5c63fe51b3ad 100644 > >> --- a/Documentation/admin-guide/mm/transhuge.rst > >> +++ b/Documentation/admin-guide/mm/transhuge.rst > >> > >> > >> We need to modify/remove the following paragraph: > >> > >> khugepaged currently only searches for opportunities to collapse to > >> PMD-sized THP and no attempt is made to collapse to other THP > >> sizes. > > On this version this is currently still true, but once I add Baolin's > > patch it will not be true. Thanks for the reminder :) > > You referenced Baolin's patch in the other email too, can you send the li= nk, > or the patch? He didn't send it to the mailing list, but rather off chain to all the recipients of this series. You should have it in your email look for Subject: "mm: khugepaged: allow khugepaged to check all anonymous mTHP orders" and "mm: khugepaged: kick khugepaged for enabling none-PMD-sized mTHPs" -- Nico > > > > > -- Nico > > >