Re: [PATCH v8 11/15] f2fs: handle partial truncate of large folio dirty subpages

[Chao Yu]

On 10/28/26 23:44, Nanzhe Zhao wrote:
> From: Nanzhe Zhao <zhaonanzhe@xxxxxxxxxx>
> 
> A large folio can be partial truncated and stays in folio mapping, we
> need to clear the subrange dirty bits and uptodate bits that the partial
> truncate covers. If this partial truncate happens to clear the last
> subrange dirty bits, then cancel the whole folio dirty state.
> 
> Also add a guard in f2fs_write_folio_dirty_range() so a large folio
> subpage whose disk block was already truncated (NULL_ADDR) is skipped
> 
> Signed-off-by: Nanzhe Zhao <zhaonanzhe@xxxxxxxxxx>
Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,