The quilt patch titled Subject: mm/mremap: write-lock VMA while remapping it to a new address range has been removed from the -mm tree. Its filename was mm-mremap-write-lock-vma-while-remapping-it-to-a-new-address-range.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Suren Baghdasaryan <surenb@xxxxxxxxxx> Subject: mm/mremap: write-lock VMA while remapping it to a new address range Date: Mon, 27 Feb 2023 09:36:16 -0800 Write-lock VMA as locked before copying it and when copy_vma produces a new VMA. Link: https://lkml.kernel.org/r/20230227173632.3292573-18-surenb@xxxxxxxxxx Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx> Reviewed-by: Laurent Dufour <laurent.dufour@xxxxxxxxxx> Reviewed-by: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/mmap.c | 1 + mm/mremap.c | 1 + 2 files changed, 2 insertions(+) --- a/mm/mmap.c~mm-mremap-write-lock-vma-while-remapping-it-to-a-new-address-range +++ a/mm/mmap.c @@ -3197,6 +3197,7 @@ struct vm_area_struct *copy_vma(struct v get_file(new_vma->vm_file); if (new_vma->vm_ops && new_vma->vm_ops->open) new_vma->vm_ops->open(new_vma); + vma_start_write(new_vma); if (vma_link(mm, new_vma)) goto out_vma_link; *need_rmap_locks = false; --- a/mm/mremap.c~mm-mremap-write-lock-vma-while-remapping-it-to-a-new-address-range +++ a/mm/mremap.c @@ -623,6 +623,7 @@ static unsigned long move_vma(struct vm_ return -ENOMEM; } + vma_start_write(vma); new_pgoff = vma->vm_pgoff + ((old_addr - vma->vm_start) >> PAGE_SHIFT); new_vma = copy_vma(&vma, new_addr, new_len, new_pgoff, &need_rmap_locks); _ Patches currently in -mm which might be from surenb@xxxxxxxxxx are