在 2021/11/12 13:36, Gao Xiang 写道:
Hi Jianan,
On Fri, Nov 12, 2021 at 10:30:02AM +0800, Huang Jianan wrote:
Add sysfs interface to configure erofs related parameters later.
Signed-off-by: Huang Jianan <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
---
since v4:
- Resend in a clean chain.
since v3:
- Add description of sysfs in erofs documentation.
since v2:
- Check whether t in erofs_attr_store is illegal.
- Print raw value for bool entry.
since v1:
- Add sysfs API documentation.
- Use sysfs_emit over snprintf.
Documentation/ABI/testing/sysfs-fs-erofs | 7 +
Documentation/filesystems/erofs.rst | 8 +
fs/erofs/Makefile | 2 +-
fs/erofs/internal.h | 10 +
fs/erofs/super.c | 12 ++
fs/erofs/sysfs.c | 240 +++++++++++++++++++++++
6 files changed, 278 insertions(+), 1 deletion(-)
create mode 100644 Documentation/ABI/testing/sysfs-fs-erofs
create mode 100644 fs/erofs/sysfs.c
diff --git a/Documentation/ABI/testing/sysfs-fs-erofs
b/Documentation/ABI/testing/sysfs-fs-erofs
new file mode 100644
index 000000000000..86d0d0234473
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-fs-erofs
@@ -0,0 +1,7 @@
+What: /sys/fs/erofs/features/
+Date: November 2021
+Contact: "Huang Jianan" <[email protected]>
+Description: Shows all enabled kernel features.
+ Supported features:
+ lz4_0padding, compr_cfgs, big_pcluster, device_table,
+ sb_chksum.
Please help submit a patch renaming lz4_0padding to 0padding globally
since LZMA and later algorithms also need that...
Also, lack of chunked_file and compr_head2 as well?
It seems that these features are also missing in internal.h, I will send
a new
patchset containing these fixes.
Thanks,
Jianan
Thanks,
Gao Xiang
