[PATCH] mm/memory: fix hugetlb_zap_begin() call in zap_vma_range_batched()

From: SJ Park

Date: Thu Sep 03 2026 - 20:02:10 EST


Commit f1fc44daf618 ("mm/hugetlb: don't lock private resv_map during
final unmap") added zap_details parameter to hugetlb_zap_begin(). But
the hugetlb_zap_begin() call in zap_vma_range_batched() is not updated.
As a result, build fails as below. Fix it.

CC mm/memory.o
.../mm/memory.c: In function ‘zap_vma_range_batched’:
.../mm/memory.c:2308:9: error: too few arguments to function ‘hugetlb_zap_begin’
2308 | hugetlb_zap_begin(vma, &range.start, &range.end);
| ^~~~~~~~~~~~~~~~~
In file included from .../mm/memory.c:48:
.../include/linux/hugetlb.h:253:20: note: declared here
253 | static inline void hugetlb_zap_begin(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~

/* TODO: move below to commentary */

I didn't read the broken commit in depth. This fix is only
build-tested. I wanted to report the issue with this as a temporal fix,
but the broken commit doesn't have Link: tag. So directly posting this
temporal and not very well verified fix first.

Fixes: Fixes: f1fc44daf618 ("mm/hugetlb: don't lock private resv_map during final unmap")
Signed-off-by: SJ Park <sj@xxxxxxxxxx>
---
mm/memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory.c b/mm/memory.c
index fcf893f4b55e2..151a1bf512e00 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2305,7 +2305,7 @@ void zap_vma_range_batched(struct mmu_gather *tlb,

mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma->vm_mm,
address, end);
- hugetlb_zap_begin(vma, &range.start, &range.end);
+ hugetlb_zap_begin(vma, &range.start, &range.end, details);
update_hiwater_rss(vma->vm_mm);
mmu_notifier_invalidate_range_start(&range);
/*

base-commit: 2d1388907095f676b59fe6dd22f244abc08408cf
--
2.47.3