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| author | Bo Liu (OpenAnolis) <liubo03@inspur.com> | 2025-07-22 08:32:29 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2025-07-24 19:43:31 +0800 |
| commit | 414091322c6363c9283aeb177101e4d7a3819ccd (patch) | |
| tree | eb33bc05e12e64e3869b8cd7615363651e7fe82d /Documentation/ABI | |
| parent | 681acbda3a6d2c687ab01baed22598da389d1f79 (diff) | |
| download | lwn-414091322c6363c9283aeb177101e4d7a3819ccd.tar.gz lwn-414091322c6363c9283aeb177101e4d7a3819ccd.zip | |
erofs: implement metadata compression
Thanks to the meta buffer infrastructure, metadata-compressed inodes are
just read from the metabox inode instead of the blockdevice (or backing
file) inode.
The same is true for shared extended attributes.
When metadata compression is enabled, inode numbers are divided from
on-disk NIDs because of non-LTS 32-bit application compatibility.
Co-developed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Bo Liu (OpenAnolis) <liubo03@inspur.com>
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250722003229.2121752-1-hsiangkao@linux.alibaba.com
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-erofs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-erofs b/Documentation/ABI/testing/sysfs-fs-erofs index bf3b6299c15e..ad6d1a3ccd4e 100644 --- a/Documentation/ABI/testing/sysfs-fs-erofs +++ b/Documentation/ABI/testing/sysfs-fs-erofs @@ -5,7 +5,7 @@ Description: Shows all enabled kernel features. Supported features: zero_padding, compr_cfgs, big_pcluster, chunked_file, device_table, compr_head2, sb_chksum, ztailpacking, - dedupe, fragments. + dedupe, fragments, 48bit, metabox. What: /sys/fs/erofs/<disk>/sync_decompress Date: November 2021 |