docs: refresh roadmap items (as of 20241015) and new use cases

Daily updates. Signed-off-by: Gao Xiang <xiang@kernel.org>
erofs · Oct 15, 2024 · 0ae9e7b · 0ae9e7b
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diff --git a/src/features.md b/src/features.md
@@ -26,13 +26,13 @@ in-kernel approaches when making technical decisions.
 | Multiple compression algorithms | Per-file       | N/A       | No            |
 | Data deduplication              | Extent-based   | No? [^8]  | No            |
 | Extended attribute support      | Yes            | Yes       | Yes           |
-| File-based distribution         | Yes            | No        | No            |
+| File-based distribution         | Yes [^9]       | No        | No            |
 | External data (multi-devices)   | Yes            | No        | No            |
 | POSIX.1e ACL support            | Yes            | Yes       | No            |
-| Direct I/O support [^9]         | Yes            | Yes       | No            |
+| Direct I/O support [^10]        | Yes            | Yes       | No            |
 | FIEMAP support                  | Yes            | Yes       | No            |
 | FSDAX support                   | Yes            | Yes       | No            |
-| Large folio support [^10]       | Yes            | No        | No            |
+| Large folio support [^11]       | Yes            | No        | No            |
 
 [^1]: 512-byte blocks can be used for tarball data reference.
 
@@ -48,8 +48,10 @@ See [Squashfs Binary Format/Inode Table](https://dr-emann.github.io/squashfs/squ
 
 [^5]: Data compression is an optional feature of the EROFS filesystem.
 Currently, the supported compression algorithms include [LZ4](https://lz4.org),
-[MicroLZMA](https://tukaani.org/xz) (since Linux 5.16), and
-[DEFLATE](https://datatracker.ietf.org/doc/html/rfc1951) (since Linux 6.6 LTS).
+[MicroLZMA](https://tukaani.org/xz) (since Linux 5.16),
+[DEFLATE](https://datatracker.ietf.org/doc/html/rfc1951) (since Linux 6.6 LTS)
+and [Zstandard](https://datatracker.ietf.org/doc/html/rfc8878) (since Linux
+6.10).
 
 [^6]: The default block size of EROFS is 4 KiB on x86 and x86-64.
 
@@ -60,10 +62,14 @@ I/O amplification and extra runtime overhead in resource-limited scenarios.
 [^8]: Strictly speaking, EXT4 has a feature named "[shared_blocks](https://lore.kernel.org/r/20201005161941.GF4225@quack2.suse.cz)",
 which will prevents applications from writing to the filesystem.
 
-[^9]: For example, `direct I/O` can be used for loop devices backed by unencoded
-files on the EROFS filesystem to avoid double caching.  `Direct I/O` on encoded
-files is almost useless since it should not do ANY caching and thus will kill
-the overall performance.
+[^9]: EROFS has supported [EROFS over fscache](https://lwn.net/Articles/896140)
+(since Linux 5.19, deprecated in Linux 6.12) and [file-backed mounts](https://lwn.net/Articles/990750)
+(since Linux 6.12).
 
-[^10]: EROFS supports [large folios for uncompressed files](https://lwn.net/Articles/931794)
-since Linux 6.2.
+[^10]: For example, `direct I/O` can be used for loop devices backed by
+unencoded files on the EROFS filesystem to avoid double caching.  `Direct I/O`
+on encoded files is almost useless since it should not do ANY caching and thus
+will kill the overall performance.
+
+[^11]: EROFS has supported large folios [for uncompressed files](https://lwn.net/Articles/931794)
+(since Linux 6.2) and [compressed files](https://git.kernel.org/torvalds/c/e080a26725fb) (since Linux 6.11).
diff --git a/src/index.md b/src/index.md
@@ -89,11 +89,13 @@ byte-granularity cut points.
 [Kata Containers](https://github.com/kata-containers/kata-containers/blob/main/docs/how-to/how-to-use-erofs-build-rootfs.md)
 
  - {octicon}`device-desktop` [Archiso](https://gitlab.archlinux.org/archlinux/archiso/-/merge_requests/82);
+[dracut-ng](https://github.com/dracut-ng/dracut-ng/pull/546); [kdump-utils](https://github.com/rhkdump/kdump-utils/pull/33);
 [Linglong](https://linglong.dev)
 
  - Distributions: [Alpine Linux](https://pkgs.alpinelinux.org/package/edge/community/x86_64/erofs-utils);
 [Arch Linux](https://archlinux.org/packages/extra/x86_64/erofs-utils);
 [Azure Linux](https://github.com/microsoft/azurelinux/pull/9971);
+[Bottlerocket](https://github.com/bottlerocket-os/twoliter/pull/379);
 [Buildroot](https://buildroot.org);
 [CentOS Stream](https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/commit/37d0627c30a55e4159f00af2d02b5d64b1dc98e8);
 [Chromium OS](https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/5125177);

diff --git a/src/roadmap.md b/src/roadmap.md
@@ -2,18 +2,17 @@
 
 ## Linux Kernel
 
- - Enable large folio support for compressed data [\[1\]](https://lore.kernel.org/r/20240305091448.1384242-1-hsiangkao@linux.alibaba.com)
-[\[2\]](https://lore.kernel.org/r/20240703120051.3653452-1-hsiangkao@linux.alibaba.com);
+ - [Enable large folio support for compressed data](https://git.kernel.org/torvalds/c/e080a26725fb);
 
  - [EROFS page cache sharing across different filesystems](https://lwn.net/Articles/984092);
 
+ - [File-backed mounts to replace "EROFS over fscache" for container images](https://git.kernel.org/torvalds/c/69a3a0a45a2f);
+
  - Intel QAT/IAA accelerator support;
 
  - Large logical cluster support for smaller compression indexes;
 
- - [Preliminary EROFS Rust in-kernel adaption (EXPERIMENTAL, program for students)](https://summer-ospp.ac.cn/org/prodetail/241920019);
-
- - File-backed mounts to replace "EROFS over fscache" for container images.
+ - [Preliminary EROFS Rust in-kernel adaption (EXPERIMENTAL, program for students)](https://summer-ospp.ac.cn/org/prodetail/241920019).
 
 ## Userspace tools (erofs-utils)