On 2023/12/6 17:10, Gao Xiang wrote:
Hi folks,Recently, there are two new cases so that we need to add a preliminary sub-page block support for compressed files; - As Android folks requested, Android ecosystem itself is now switching to 16k page size for their arm64 devices. They needs an option of 4k-block image compatibility on their new 16k devices; - Some arm64 cloud servers use 64k page size for their optimized workloads, but 4k-block EROFS container images need to be parsed too. So this patchset mainly addresses the requirements above with a very very simple approach as a start: just allocate short-lived temporary buffers all the time to keep compressed data if sub-page blocks are identified. In other words, no inplace/cache decompression for the preliminary support. This patchset survives EROFS stress test on my own testfarms.
Looks good to me, feel free to add: Reviewed-by: Chao Yu <c...@kernel.org> Thanks,
Thanks, Gao Xiang Gao Xiang (5): erofs: support I/O submission for sub-page compressed blocks erofs: record `pclustersize` in bytes instead of pages erofs: fix up compacted indexes for block size < 4096 erofs: refine z_erofs_transform_plain() for sub-page block support erofs: enable sub-page compressed block support fs/erofs/decompressor.c | 81 +++++++++------ fs/erofs/inode.c | 6 +- fs/erofs/zdata.c | 224 ++++++++++++++++++---------------------- fs/erofs/zmap.c | 32 +++--- 4 files changed, 169 insertions(+), 174 deletions(-)
