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authorJingbo Xu <jefflexu@linux.alibaba.com>2023-01-12 14:54:30 +0800
committerGao Xiang <hsiangkao@linux.alibaba.com>2023-01-16 22:39:29 +0800
commitb22c7b97189d461d7143052da83b36390c623b54 (patch)
treeb26d7dd0e9aed6f39b9cbef1c8707201d33df5ce /Documentation/filesystems
parent12724ba38992bd045e92a9a88a868a530f89d13e (diff)
erofs: add documentation for 'domain_id' mount option
Since the EROFS share domain feature for fscache mode has been available since Linux v6.1, let's add documentation for 'domain_id' mount option. Cc: linux-doc@vger.kernel.org Reviewed-by: Jia Zhu <zhujia.zj@bytedance.com> Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20230112065431.124926-2-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/erofs.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
index 067fd1670b1f..a43aacf1494e 100644
--- a/Documentation/filesystems/erofs.rst
+++ b/Documentation/filesystems/erofs.rst
@@ -120,6 +120,8 @@ dax={always,never} Use direct access (no page cache). See
dax A legacy option which is an alias for ``dax=always``.
device=%s Specify a path to an extra device to be used together.
fsid=%s Specify a filesystem image ID for Fscache back-end.
+domain_id=%s Specify a domain ID in fscache mode so that different images
+ with the same blobs under a given domain ID can share storage.
=================== =========================================================
Sysfs Entries