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| author | Yue Hu <huyue2@yulong.com> | 2021-12-28 06:46:04 +0100 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2021-12-30 17:51:10 +0100 |
| commit | ab92184ff8f12979f3d3dd5ed601ed85770d81ba (patch) | |
| tree | 40b463add2daf8185d9317606644778ef0e8b20c /fs/drop_caches.c | |
| parent | erofs: support inline data decompression (diff) | |
| download | linux-ab92184ff8f12979f3d3dd5ed601ed85770d81ba.tar.xz linux-ab92184ff8f12979f3d3dd5ed601ed85770d81ba.zip | |
erofs: add on-disk compressed tail-packing inline support
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.
Link: https://lore.kernel.org/r/20211228054604.114518-6-hsiangkao@linux.alibaba.com
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/drop_caches.c')
0 files changed, 0 insertions, 0 deletions