Re: [PATCH] erofs: update the Kconfig description
From: Gao Xiang
Date: Mon Mar 23 2026 - 13:11:49 EST
Hi Chao,
On 2026/3/23 17:59, Chao Yu wrote:
On 3/23/26 17:48, Gao Xiang wrote:
Refine the description to better highlight its features and use cases.
In addition, add instructions for building it as a module and clarify
the compression option.
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
---
fs/erofs/Kconfig | 45 ++++++++++++++++++++++++++++++---------------
1 file changed, 30 insertions(+), 15 deletions(-)
diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
index a9f645f57bb2..9489ed8ad95b 100644
--- a/fs/erofs/Kconfig
+++ b/fs/erofs/Kconfig
@@ -16,22 +16,36 @@ config EROFS_FS
select ZLIB_INFLATE if EROFS_FS_ZIP_DEFLATE
select ZSTD_DECOMPRESS if EROFS_FS_ZIP_ZSTD
help
- EROFS (Enhanced Read-Only File System) is a lightweight read-only
- file system with modern designs (e.g. no buffer heads, inline
- xattrs/data, chunk-based deduplication, multiple devices, etc.) for
- scenarios which need high-performance read-only solutions, e.g.
- smartphones with Android OS, LiveCDs and high-density hosts with
- numerous containers;
-
- It also provides transparent compression and deduplication support to
- improve storage density and maintain relatively high compression
- ratios, and it implements in-place decompression to temporarily reuse
- page cache for compressed data using proper strategies, which is
- quite useful for ensuring guaranteed end-to-end runtime decompression
+ EROFS (Enhanced Read-Only File System) is a modern, lightweight,
+ secure read-only filesystem for various use cases, such as immutable
+ system images, container images, application sandboxes, and datasets.
+
+ EROFS uses a flexible, hierarchical on-disk design so that features
+ can be enabled on demand: the core on-disk format is block-aligned in
+ order to perform optimally on all kinds of devices, including block
+ and memory-backed devices; the format is easy to parse and has zero
+ metadata redundancy, unlike generic filesystems, making it ideal for
+ for filesytem auditing and remote access; inline data, random-access
duplicated 'for'? otherwise, looks good to me.
Fixed and thanks for the review!
Reviewed-by: Chao Yu <chao@xxxxxxxxxx>
Thanks,
Thanks,
Gao Xiang