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Mon, 1 Sep 2025 11:08:53 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id eJlQG8V+tWjtDgAAD6G6ig (envelope-from ); Mon, 01 Sep 2025 11:08:53 +0000 From: Vlastimil Babka Date: Mon, 01 Sep 2025 13:08:55 +0200 Subject: [PATCH 05/12] tools/testing/vma: Implement vm_refcnt reset MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250901-maple-sheaves-v1-5-d6a1166b53f2@suse.cz> References: <20250901-maple-sheaves-v1-0-d6a1166b53f2@suse.cz> In-Reply-To: <20250901-maple-sheaves-v1-0-d6a1166b53f2@suse.cz> To: "Liam R. Howlett" , Matthew Wilcox , Lorenzo Stoakes , Jann Horn , Pedro Falcato , Suren Baghdasaryan Cc: Harry Yoo , Andrew Morton , maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Vlastimil Babka X-Mailer: b4 0.14.2 X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: BB828140006 X-Stat-Signature: g5pz1ffw6774jd1954azoaxsrs7p6t6b X-Rspam-User: X-HE-Tag: 1756724953-140954 X-HE-Meta: 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 i4NM+FV5 E9aImraskeOA2mUjU5mtenv2xaXTTdXobPwrO8JrfKt405r/NyGOmfd6Y58igwqoq5dXJ/fLi5W5UD2xU/TkhDr7Rix9OWzlbSjnjW5NJZd7izm1H54mChQajKU033HW75QNO3+93XjYckEEcjSbj1ElIVH3fHnuuDPjsaH4UYmOzJg/UbwIBN/kGjMScdtoliu39iJM3utZAugJYLjyRHBXhuHLUeRmZoOiRNbRk6g+kUa3MfdULdv4RX1ReH3DaKS98yz9AH+Jt1vcaDxZqOAm6tA== 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: From: "Liam R. Howlett" Add the reset of the ref count in vma_lock_init(). This is needed if the vma memory is not zeroed on allocation. Signed-off-by: Liam R. Howlett Signed-off-by: Vlastimil Babka --- tools/testing/vma/vma_internal.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/vma/vma_internal.h b/tools/testing/vma/vma_internal.h index 09732eff8dd84555563b3d485805ebab7b204584..972ab2686e0a3654cef611ce9f3409bc0c38dc80 100644 --- a/tools/testing/vma/vma_internal.h +++ b/tools/testing/vma/vma_internal.h @@ -1326,8 +1326,8 @@ static inline void ksm_exit(struct mm_struct *mm) static inline void vma_lock_init(struct vm_area_struct *vma, bool reset_refcnt) { - (void)vma; - (void)reset_refcnt; + if (reset_refcnt) + refcount_set(&vma->vm_refcnt, 0); } static inline void vma_numab_state_init(struct vm_area_struct *vma) -- 2.51.0