From: Vlastimil Babka <vbabka@suse.cz>
To: Suren Baghdasaryan <surenb@google.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Christoph Lameter <cl@gentwo.org>,
David Rientjes <rientjes@google.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>,
Harry Yoo <harry.yoo@oracle.com>,
Uladzislau Rezki <urezki@gmail.com>,
Sidhartha Kumar <sidhartha.kumar@oracle.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
rcu@vger.kernel.org, maple-tree@lists.infradead.org,
vbabka@suse.cz
Subject: [PATCH v7 10/21] tools/testing/vma: Implement vm_refcnt reset
Date: Wed, 03 Sep 2025 14:59:52 +0200 [thread overview]
Message-ID: <20250903-slub-percpu-caches-v7-10-71c114cdefef@suse.cz> (raw)
In-Reply-To: <20250903-slub-percpu-caches-v7-0-71c114cdefef@suse.cz>
From: "Liam R. Howlett" <Liam.Howlett@oracle.com>
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 <Liam.Howlett@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
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 3639aa8dd2b06ebe5b9cfcfe6669994fd38c482d..2f1c586400cfd65413d2ff82199590b43796b18c 100644
--- a/tools/testing/vma/vma_internal.h
+++ b/tools/testing/vma/vma_internal.h
@@ -1418,8 +1418,8 @@ 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
next prev parent reply other threads:[~2025-09-03 13:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-03 12:59 [PATCH v7 00/21] SLUB percpu sheaves Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 01/21] locking/local_lock: Expose dep_map in local_trylock_t Vlastimil Babka
2025-09-04 1:38 ` Harry Yoo
2025-09-03 12:59 ` [PATCH v7 02/21] slab: simplify init_kmem_cache_nodes() error handling Vlastimil Babka
2025-09-04 1:41 ` Harry Yoo
2025-09-03 12:59 ` [PATCH v7 03/21] slab: add opt-in caching layer of percpu sheaves Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 04/21] slab: add sheaf support for batching kfree_rcu() operations Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 05/21] slab: sheaf prefilling for guaranteed allocations Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 06/21] slab: determine barn status racily outside of lock Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 07/21] slab: skip percpu sheaves for remote object freeing Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 08/21] slab: allow NUMA restricted allocations to use percpu sheaves Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 09/21] tools/testing/maple_tree: Fix check_bulk_rebalance() locks Vlastimil Babka
2025-09-03 12:59 ` Vlastimil Babka [this message]
2025-09-03 12:59 ` [PATCH v7 11/21] tools/testing: Add support for changes to slab for sheaves Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 12/21] mm, vma: use percpu sheaves for vm_area_struct cache Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 13/21] maple_tree: use percpu sheaves for maple_node_cache Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 14/21] tools/testing: include maple-shim.c in maple.c Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 15/21] testing/radix-tree/maple: Hack around kfree_rcu not existing Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 16/21] maple_tree: Use kfree_rcu in ma_free_rcu Vlastimil Babka
2025-09-03 12:59 ` [PATCH v7 17/21] maple_tree: Replace mt_free_one() with kfree() Vlastimil Babka
2025-09-03 13:00 ` [PATCH v7 18/21] tools/testing: Add support for prefilled slab sheafs Vlastimil Babka
2025-09-03 13:00 ` [PATCH v7 19/21] maple_tree: Prefilled sheaf conversion and testing Vlastimil Babka
2025-09-03 13:00 ` [PATCH v7 20/21] maple_tree: Add single node allocation support to maple state Vlastimil Babka
2025-09-03 13:00 ` [PATCH v7 21/21] maple_tree: Convert forking to use the sheaf interface Vlastimil Babka
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