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Wed, 27 Aug 2025 08:26:35 +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 6HFpIzvBrmhNfgAAD6G6ig (envelope-from ); Wed, 27 Aug 2025 08:26:35 +0000 From: Vlastimil Babka Date: Wed, 27 Aug 2025 10:26:40 +0200 Subject: [PATCH v6 08/10] mm, vma: use percpu sheaves for vm_area_struct cache 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: <20250827-slub-percpu-caches-v6-8-f0f775a3f73f@suse.cz> References: <20250827-slub-percpu-caches-v6-0-f0f775a3f73f@suse.cz> In-Reply-To: <20250827-slub-percpu-caches-v6-0-f0f775a3f73f@suse.cz> To: Suren Baghdasaryan , "Liam R. Howlett" , Christoph Lameter , David Rientjes Cc: Roman Gushchin , Harry Yoo , Uladzislau Rezki , linux-mm@kvack.org, linux-kernel@vger.kernel.org, rcu@vger.kernel.org, maple-tree@lists.infradead.org, vbabka@suse.cz X-Mailer: b4 0.14.2 X-Spam-Level: X-Spamd-Result: default: False [-8.30 / 50.00]; REPLY(-4.00)[]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.999]; MIME_GOOD(-0.10)[text/plain]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; RCPT_COUNT_TWELVE(0.00)[12]; ARC_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; R_RATELIMIT(0.00)[to_ip_from(RLwn5r54y1cp81no5tmbbew5oc)]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[linux.dev,oracle.com,gmail.com,kvack.org,vger.kernel.org,lists.infradead.org,suse.cz]; MID_RHS_MATCH_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.cz:email,suse.cz:mid,imap1.dmz-prg2.suse.org:helo] X-Spam-Flag: NO X-Spam-Score: -8.30 Create the vm_area_struct cache with percpu sheaves of size 32 to improve its performance. Reviewed-by: Suren Baghdasaryan Signed-off-by: Vlastimil Babka --- mm/vma_init.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/vma_init.c b/mm/vma_init.c index 8e53c7943561e7324e7992946b4065dec1149b82..52c6b55fac4519e0da39ca75ad0= 18e14449d1d95 100644 --- a/mm/vma_init.c +++ b/mm/vma_init.c @@ -16,6 +16,7 @@ void __init vma_state_init(void) struct kmem_cache_args args =3D { .use_freeptr_offset =3D true, .freeptr_offset =3D offsetof(struct vm_area_struct, vm_freeptr), + .sheaf_capacity =3D 32, }; =20 vm_area_cachep =3D kmem_cache_create("vm_area_struct", --=20 2.51.0