Re: [PATCH v8 01/15] f2fs: extend folio state for large folio write path

[Chao Yu <chao@kernel.org>]

On 10/28/26 23:43, Nanzhe Zhao wrote:
> From: Nanzhe Zhao <zhaonanzhe@xiaomi.com>
> 
> Large folio write path needs a subpage status bitmap and write
> pages pending counter, while keeping compatible with f2fs private
> flags.
> 
> Move struct f2fs_folio_state to f2fs.h, add private_flags and
> subpage state bitmap, and change PAGE_PRIVATE functions to be
> compatible with f2fs_folio_state. Allocate f2fs_folio_state via kzalloc
> instead of kmem_cache, since the state size depends on the folio order.
> 
> Note: Now if a path wants to use f2fs_folio_state, it must call
> `folio_has_ffs` instead of `folio_test_large`` to make check.
> 
> Signed-off-by: Nanzhe Zhao <zhaonanzhe@xiaomi.com>
Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,