Re: [PATCH v2] f2fs: avoid unused block when dio write in LFS mode

[Chao Yu]

On 2024/9/5 13:24, Daejun Park wrote:
> This patch addresses the problem that when using LFS mode, unused blocks
> may occur in f2fs_map_blocks() during block allocation for dio writes.
>
> If a new section is allocated during block allocation, it will not be
> included in the map struct by map_is_mergeable() if the LBA of the
> allocated block is not contiguous. However, the block already allocated
> in this process will remain unused due to the LFS mode.
>
> This patch avoids the possibility of unused blocks by escaping
> f2fs_map_blocks() when allocating the last block in a section.
>
> Signed-off-by: Daejun Park <daejun7.park@xxxxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,