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Mon, 17 Mar 2025 02:24:04 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Mateusz Guzik Date: Mon, 17 Mar 2025 10:23:52 +0100 X-Gm-Features: AQ5f1JrirJGp25O_T-rkurO6xAyaOETmSNiIDW9WgTNrAu2o14hrVmX2W1wy18g Message-ID: Subject: Re: a case for a destructor for slub: mm_struct To: Harry Yoo Cc: Vlastimil Babka , Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-mm , Dennis Zhou Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Rspamd-Queue-Id: 6F2BD40003 X-Rspamd-Server: rspam03 X-Stat-Signature: mswwr1e9u1pisz1chs4p1aebpytqx39c X-HE-Tag: 1742203446-16899 X-HE-Meta: U2FsdGVkX1/JtwfK/93qCEgpu+VyuYO8UMmbsm4oNgXhuY/d6D6offQfBP69uMdaRFFB4FIyYJl7daeARJ40zyKccn405OY6qrYrFrCDMZImZAl0WR7rJRJxmNr2HLt4hl/IrHkRZt7izIXjyIsW7H255K0lW0qWsjI0Oj1SM6v8SMq94w3Mdl42WBUrALnIObUHhk249lM7v/k6u52j0pdDvr0X31sIFNCnOcAQlDlEaHa/l3KJbZ+G0gcAI7GhkPU6wp2nD7sg5xlwgNtAiJ1mlI4DsgsJnHGWdM6aZrphmY3TLQT6dsrXkwHaJE4r5fcqn1LMTWV9QgU9NhbbtqzyBoH/YOJjFd92isGRXjA8Rp7/GtIPs7Mt6hMDkjoSNRgSaBxu0v1F1imsmmEcW4EWF5wDFCkHsFa43v3e5piSqXOJFqBikTQ2UXWk1fLcpNv5Ge+kbXQE4bw23JXWX90Rif89PqQIvnn4rtWYn329yjgX4GCe5D98tVI1n1woAN1Aab9oFl+xG4ICDDaloa+lgm6gYhgba7EVni/wtPYp4Y00fVmH/KLNHlvIvwaYSywItliuFsj4BK/apHT7cnC0jiNYXdR+nLgH8rXq8KAsS+seYWv/++A8LQz4ZI3IfYvJ/uwx8iTss8PKGgMKGRMhZPK2hiwl2m0A5j5UyitkKNewzPfivQcMtJZMcR6rujVipBwpW9PlJDN1kwj+x14uwCjzFnd4coAAxRMSrJJPgywE3m+Rsdhvm0QcoAxes06C5XbzGtgUOnyhFLvCyCznLrd126bmOrDUjef0PkqoHNSFFNnc2u52OHCXvTroWQiIqHv4q9+c2DlEUvPZYDCVGIdqmViQIFdlj6GqWaG+TFo/t4r9qODJpaR8TTswssHKeP9kw9DLsQyUU7040tP54o0siKBg5l1NRkxnvTeBjij/x2spAjLUAEzOdSlQ/gnE2dTN1cuFmefxM6Z oEQm/3Bx h1tjFfZHxx+Sg+kEfBzv/mtstERb9GG2ahi/Vo9Q/PXEx7V+UhO5vIvKyy34XtyQYEqV8w3R5bHacJmMq7hctUbacAlgZ1RYuDSdZlhifk3cB6C2tvk2QXmoIIlQ68Q10HVWVU3tmu1DxLVl2lJ56iuWlkFxXpOotRzc0h6tyvTQNRL0r6V55UN0UODfT2Et40t9bliOLMU/Ts26VzOe3cimq3FvMYD8OF9Og1Ov3UIsrwfATtkg0pYZx0IMmSkH8i6fpd/HwURwKyM+yhImiF9n1mZIrnZJFzz5yJXtIXus9WhHJSfvWEhjpIle+08o9OQSH5P2gYsBviSQ9q9pHPYAdSwcx+WQe4/i/UQuuRylpNs/vWu1FvJRsx4krUUkdOYr9rbyBnrkBidgMgg5pE2jWMSJ8joZhjpo/XvbSWIaDnnFtNKFrXJM2oKw+Zp249O0s+4sMWfgdDFckcy2THAiu+n3vlQ8rGWNq X-Bogosity: Ham, tests=bogofilter, spamicity=0.003046, 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 Mon, Mar 17, 2025 at 6:42=E2=80=AFAM Harry Yoo wr= ote: > If we allow reclaiming per-cpu stuff only biut do not reclaim > the slab object that contains it... > > Does that mean the users of the cache need to check if the percpu > memory has been reclaimed and if so, should call init routines (e.g., > mm_init())? > see the other mail (about to be written) e-mail. > > I'm happy to split the churn and add some 'return 0;' myself. > > Fortunately, there were only a handful users of of constructor ;-) > Never mind, I converted all of them in an hour (splitting the work + ping > pong-ing seemed like unnecessary overhead). > cool and apologies again :) > Will send the patch series before too late. > But please be patient=E2=80=94since LSFMM is next week, > I'm expecting to be busier than usual :) > there is zero time pressure here mate I appreciate you looking into this. -- Mateusz Guzik