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| author | Amir Goldstein <amir73il@gmail.com> | 2020-04-09 18:58:34 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2020-05-13 12:11:24 +0300 |
| commit | b0def88d807f6db6076aab2aeb11f542036e81a6 (patch) | |
| tree | 5b38242c01c2fe6af8c1a79d13dd5156d8c20dd5 /Documentation/filesystems/overlayfs.rst | |
| parent | 9aafc1b0187322fa4fd4eb905d0903172237206c (diff) | |
| download | linux-b0def88d807f6db6076aab2aeb11f542036e81a6.tar.xz | |
ovl: resolve more conflicting mount options
Similar to the way that a conflict between metacopy=on,redirect_dir=off is
resolved, also resolve conflicts between nfs_export=on,index=off and
nfs_export=on,metacopy=on.
An explicit mount option wins over a default config value. Both explicit
mount options result in an error.
Without this change the xfstests group overlay/exportfs are skipped if
metacopy is enabled by default.
Reported-by: Chengguang Xu <cgxu519@mykernel.net>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'Documentation/filesystems/overlayfs.rst')
| -rw-r--r-- | Documentation/filesystems/overlayfs.rst | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/filesystems/overlayfs.rst b/Documentation/filesystems/overlayfs.rst index c9d2bf96b02d..660dbaf0b9b8 100644 --- a/Documentation/filesystems/overlayfs.rst +++ b/Documentation/filesystems/overlayfs.rst @@ -365,8 +365,8 @@ pointed by REDIRECT. This should not be possible on local system as setting "trusted." xattrs will require CAP_SYS_ADMIN. But it should be possible for untrusted layers like from a pen drive. -Note: redirect_dir={off|nofollow|follow[*]} conflicts with metacopy=on, and -results in an error. +Note: redirect_dir={off|nofollow|follow[*]} and nfs_export=on mount options +conflict with metacopy=on, and will result in an error. [*] redirect_dir=follow only conflicts with metacopy=on if upperdir=... is given. @@ -560,6 +560,9 @@ When the NFS export feature is enabled, all directory index entries are verified on mount time to check that upper file handles are not stale. This verification may cause significant overhead in some cases. +Note: the mount options index=off,nfs_export=on are conflicting and will +result in an error. + Testsuite --------- |