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AJvYcCVMC4fXV5QJTgrKvPX95D86yYQhUH7MWXw2tB21C/dAVfPzJjIiFhg4OYOMc2s0If67+2omk5t2+Q==@kvack.org X-Gm-Message-State: AOJu0YxZ5jgAehNGRmG6pXJ8bzK5XfUUV7gGJGZBNFlzFD/47d2KJvwp WeSJLp0dxI62MHizQibIniPDUMus38syaSxr9zS32s1CCgBjCQ5nScfGcqOYHBj3Jveh8//JR2u RiTVruTDElXBrvvnGtEE5k7qcPt7efaBJdRpA X-Gm-Gg: ASbGnctFKbI/VpabOMyg2NGfbWOokSE5iR33S9cqtCF58iuWWcaoW1Fnfj30BAkwLrP pvhTA4XS1SV1Pxhy/cGT/DyRUWSKM8wqOlqw8fujdtbbNv5gGXGh7W+kKnILZD2lBmOw5atzbvn 7MzKNQo8lgqVUrQDTRzCJog/6MqM9D/rkEmimg48M40Z4YuquIu4lZ/4s= X-Google-Smtp-Source: AGHT+IFGO/2MNIgugl87SqpqiwPH2spBgQocJNuFQT5g23qVJ3fQ7ACEfSO18uWVKIIe1iduauEonOEF+rWtw0hcEe8= X-Received: by 2002:ad4:5e88:0:b0:6e6:61a5:aa54 with SMTP id 6a1803df08f44-6eb1b957c5cmr37408396d6.44.1742291834750; Tue, 18 Mar 2025 02:57:14 -0700 (PDT) MIME-Version: 1.0 References: <20250318015926.1629748-1-harry.yoo@oracle.com> In-Reply-To: <20250318015926.1629748-1-harry.yoo@oracle.com> From: Alexander Potapenko Date: Tue, 18 Mar 2025 10:56:37 +0100 X-Gm-Features: AQ5f1JrFxFNE5b9N5gKecOSz_7mX00YrYbmIQQ1sFdm83WaYQV5DvfZijArv4Mk Message-ID: Subject: Re: [PATCH mm-unstable] mm/kasan: use SLAB_NO_MERGE flag instead of an empty constructor To: Harry Yoo Cc: Andrey Ryabinin , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Andrew Morton , kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: fwxd93gpksws4p8614wa6i81hitjy39h X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: C7016160009 X-Rspam-User: X-HE-Tag: 1742291835-609376 X-HE-Meta: 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 I2ZBSpKg umnGfBLZvVW9LqtHO92qxMSe5zCTvT6BuuP5jB22uQQs4BPtWXojbX+QXlwEZ8Oosu1wMqzSNcOfI6RyWpon73tR16OjdTxKXGukJNg6++broqrb4titI7r3EI+f32uPL6AC/zhPs05CNO7Yw9IJxS79F9ikg1UkRkaZSdA3404oCBs8eRmO5XXTttKRwXcbM2DlsbX8bQYUvx6RHJfLanSA2AbSLZs54q4M7v3iI6RatzTc2N6vsNtARIsr1oGPyyAHNgley9YS+qXr3YXCNcwE0ZwmSWXWgdNoGv2Mw91baewmOJImYqKcxrTaPbFwCL98RLB16EaMc3b4peP+CBeg/s+y29Uw5HNxmpDSEtTxYHxM= 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 Tue, Mar 18, 2025 at 2:59=E2=80=AFAM Harry Yoo wr= ote: > > Use SLAB_NO_MERGE flag to prevent merging instead of providing an > empty constructor. Using an empty constructor in this manner is an abuse > of slab interface. This code predated the existence of SLAB_NO_MERGE. Thanks for fixing this! > > Signed-off-by: Harry Yoo Reviewed-by: Alexander Potapenko