Re: [PATCH v1 0/4] ntfs: fix MFT bitmap extension allocation

[liubaolin <liubaolin12138@163.com>]

在 2026/9/24 09:45, Xuewen Wang 写道:
> This series fixes four bugs in the MFT bitmap extension path:
> 
>    - The adjacent-cluster candidate can be outside the volume. Check it
>      before accessing $Bitmap and fall back to the regular allocator.
>    - The allocator can return an adjacent cluster that merges with the
>      existing run. Preserve that run when rolling back a failed extension.
>    - Rollback can wait for the initial $Bitmap scan while holding a folio
>      the scanner needs. Wait for the scan before starting the allocation.
>    - Direct allocation changes $Bitmap without updating the cached free
>      counts. Update both counts and honor per-page accounting and space
>      reserved for delayed allocation.
> 
> Xuewen Wang (4):
>    ntfs: bound the adjacent cluster in MFT bitmap extension
>    ntfs: fix rollback after MFT bitmap run coalescing
>    ntfs: wait for the bitmap scan before MFT bitmap extension
>    ntfs: account for direct MFT bitmap cluster allocation
> 
>   fs/ntfs/mft.c | 26 +++++++++++++++++++++++---
>   1 file changed, 23 insertions(+), 3 deletions(-)
> 

The series looks good to me.

Reviewed-by: Baolin Liu <liubaolin@kylinos.cn>