[PATCH v4 5/5] erofs: add on-disk compressed tail-packing inline support

[Chao Yu]

On 2021/12/28 13:46, Gao Xiang wrote:
> From: Yue Hu <huyue2 at yulong.com>
> 
> Introduces erofs compressed tail-packing inline support.
> 
> This approach adds a new field called `h_idata_size' in the
> per-file compression header to indicate the encoded size of
> each tail-packing pcluster.
> 
> At runtime, it will find the start logical offset of the tail
> pcluster when initializing per-inode zmap and record such
> extent (headlcn, idataoff) information to the in-memory inode.
> Therefore, follow-on requests can directly recognize if one
> pcluster is a tail-packing inline pcluster or not.
> 
> Signed-off-by: Yue Hu <huyue2 at yulong.com>
> Signed-off-by: Gao Xiang <hsiangkao at linux.alibaba.com>

Reviewed-by: Chao Yu <chao at kernel.org>

Thanks,