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| author | Gao Xiang <hsiangkao@linux.alibaba.com> | 2026-01-22 10:52:52 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2026-01-23 00:07:51 +0800 |
| commit | a221a737406501c9036d00667095d61317d50d7f (patch) | |
| tree | ef242d1d8cdba11e08b5014812739a5326951c3e | |
| parent | cc831ab33644088c1eef78936de24701014d520a (diff) | |
erofs: add missing documentation about `directio` mount option
Document the `directio` mount option for file-backed mounts, because
recent users need this and this mount option has been available since
commit 6422cde1b0d5 ("erofs: use buffered I/O for file-backed mounts
by default") without proper documentation.
Reported-by: Yuxuan Liu <cdjddzy@foxmail.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
| -rw-r--r-- | Documentation/filesystems/erofs.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst index 08194f194b94..96101c3fe53a 100644 --- a/Documentation/filesystems/erofs.rst +++ b/Documentation/filesystems/erofs.rst @@ -125,6 +125,8 @@ dax={always,never} Use direct access (no page cache). See Documentation/filesystems/dax.rst. dax A legacy option which is an alias for ``dax=always``. device=%s Specify a path to an extra device to be used together. +directio (For file-backed mounts) Use direct I/O to access backing + files, and asynchronous I/O will be enabled if supported. 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. |