Re: [PATCH v9 03/11] f2fs: describe NAT block layout dynamically

[Chao Yu]

On 9/4/26 07:56, Kelvin Zhang wrote:
> A NAT block is a filesystem-block-sized array of struct f2fs_nat_entry
> elements. The compile-time NAT_ENTRY_PER_BLOCK definition hardcodes the
> NAT capacity to a 4KB block size.
>
> Replace the fixed array in struct f2fs_nat_block with a C flexible
> array member, and calculate sbi->nat_entries_per_block dynamically in
> init_sb_info().
>
> Parameterize NAT geometry helpers (NAT_ENTRY_PER_BLOCK,
> NAT_BLOCK_OFFSET, f2fs_start_nid, NAT_BLK_CNT, and
> f2fs_nat_bitmap_size) with sbi. Update call sites across node management,
> checkpointing, GC, and sysfs.
>
> This is a layout-only change without behavioral differences for 4KB
> blocks.
>
> Signed-off-by: Kelvin Zhang <zhangxp1998@xxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,