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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-15 08:55:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-15 08:55:51 -0700 |
| commit | 19fd4a91ddeec20f9971a06f6328558c392ad66a (patch) | |
| tree | a13bce5a020e125fbc8444db5dba81d54561d7a6 /Documentation | |
| parent | f8bf101b3b1171923a011a47923a93f4b22e6cb0 (diff) | |
| parent | beae836e9c61ee039e367a94b14f7fea08f0ad4c (diff) | |
Merge tag 'ovl-fixes-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs
Pull overlayfs fixes from Amir Goldstein:
- Various fixes for regressions due to conversion to new mount
api in v6.5
- Disable a new mount option syntax (append lowerdir) that was
added in v6.5 because we plan to add a different lowerdir
append syntax in v6.7
* tag 'ovl-fixes-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs:
ovl: temporarily disable appending lowedirs
ovl: fix regression in showing lowerdir mount option
ovl: fix regression in parsing of mount options with escaped comma
fs: factor out vfs_parse_monolithic_sep() helper
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/filesystems/overlayfs.rst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/filesystems/overlayfs.rst b/Documentation/filesystems/overlayfs.rst index cdefbe73d85c..5b93268e400f 100644 --- a/Documentation/filesystems/overlayfs.rst +++ b/Documentation/filesystems/overlayfs.rst @@ -339,6 +339,18 @@ The specified lower directories will be stacked beginning from the rightmost one and going left. In the above example lower1 will be the top, lower2 the middle and lower3 the bottom layer. +Note: directory names containing colons can be provided as lower layer by +escaping the colons with a single backslash. For example: + + mount -t overlay overlay -olowerdir=/a\:lower\:\:dir /merged + +Since kernel version v6.5, directory names containing colons can also +be provided as lower layer using the fsconfig syscall from new mount api: + + fsconfig(fs_fd, FSCONFIG_SET_STRING, "lowerdir", "/a:lower::dir", 0); + +In the latter case, colons in lower layer directory names will be escaped +as an octal characters (\072) when displayed in /proc/self/mountinfo. Metadata only copy up --------------------- |