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wrote: [snip] > diff --git a/include/linux/mmap_lock.h b/include/linux/mmap_lock.h > index cd51e0a43c76..d87a07608295 100644 > --- a/include/linux/mmap_lock.h > +++ b/include/linux/mmap_lock.h [snip] > +/** > + * vma_assert_stabilised() - assert that this VMA cannot be changed from > + * underneath us either by having a VMA or mmap lock held. > + * @vma: The VMA whose stability we wish to assess. > + * > + * Note that this will only trigger an assert if CONFIG_DEBUG_VM is set. > + */ > +static inline void vma_assert_stabilised(struct vm_area_struct *vma) > { > - return rwsem_is_contended(&mm->mmap_lock); > + VM_BUG_ON_VMA(vma_is_stabilised(vma), vma); OK not had enough coffee this morning :)) Obviously should be !vma_is_stabilised(vma). Andrew - could you apply the fix-patch below or just fix up my mistake inline? Thanks! Cheers, Lorenzo >From c95bba4f23981584b105e0e8c1d3ce763cc619e0 Mon Sep 17 00:00:00 2001 From: Lorenzo Stoakes Date: Fri, 16 Jan 2026 10:30:11 +0000 Subject: [PATCH] fix Signed-off-by: Lorenzo Stoakes --- include/linux/mmap_lock.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mmap_lock.h b/include/linux/mmap_lock.h index d87a07608295..cb18bfa3ae27 100644 --- a/include/linux/mmap_lock.h +++ b/include/linux/mmap_lock.h @@ -473,7 +473,7 @@ static inline void mmap_read_unlock_non_owner(struct mm_struct *mm) */ static inline void vma_assert_stabilised(struct vm_area_struct *vma) { - VM_BUG_ON_VMA(vma_is_stabilised(vma), vma); + VM_BUG_ON_VMA(!vma_is_stabilised(vma), vma); } #endif /* _LINUX_MMAP_LOCK_H */ -- 2.52.0