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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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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-Spam-Level: X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.997]; MIME_GOOD(-0.10)[text/plain]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; RCPT_COUNT_TWELVE(0.00)[13]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[oracle.com:email,imap1.dmz-prg2.suse.org:helo,suse.cz:email,suse.cz:mid] X-Spam-Flag: NO X-Spam-Score: -4.30 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_inter= nal.h index 09732eff8dd84555563b3d485805ebab7b204584..972ab2686e0a3654cef611ce9f3= 409bc0c38dc80 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) =20 static inline void vma_lock_init(struct vm_area_struct *vma, bool reset_re= fcnt) { - (void)vma; - (void)reset_refcnt; + if (reset_refcnt) + refcount_set(&vma->vm_refcnt, 0); } =20 static inline void vma_numab_state_init(struct vm_area_struct *vma) --=20 2.51.0