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| author |   Miklos Szeredi <mszeredi@redhat.com> | 2016-12-16 11:02:57 +0100 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2016-12-16 11:02:57 +0100 |
| commit | 688ea0e5a0e2278e2fcd0014324ab1ba68e70ad7 (patch) | |
| tree | e3e8c4924f694e485253ee5a2b512b30b4bcef7a /fs/overlayfs/Kconfig | |
| parent | ovl: check for emptiness of redirect dir (diff) | |
| download | linux-dev-688ea0e5a0e2278e2fcd0014324ab1ba68e70ad7.tar.xz linux-dev-688ea0e5a0e2278e2fcd0014324ab1ba68e70ad7.zip | |
ovl: allow redirect_dir to default to "on"
This patch introduces a kernel config option and a module param. Both can
be used independently to turn the default value of redirect_dir on or off.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/Kconfig')
| -rw-r--r-- | fs/overlayfs/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/overlayfs/Kconfig b/fs/overlayfs/Kconfig index 34355818a2e0..0daac5112f7a 100644 --- a/fs/overlayfs/Kconfig +++ b/fs/overlayfs/Kconfig @@ -8,3 +8,17 @@ config OVERLAY_FS merged with the 'upper' object. For more information see Documentation/filesystems/overlayfs.txt + +config OVERLAY_FS_REDIRECT_DIR + bool "Overlayfs: turn on redirect dir feature by default" + depends on OVERLAY_FS + help + If this config option is enabled then overlay filesystems will use + redirects when renaming directories by default. In this case it is + still possible to turn off redirects globally with the + "redirect_dir=off" module option or on a filesystem instance basis + with the "redirect_dir=off" mount option. + + Note, that redirects are not backward compatible. That is, mounting + an overlay which has redirects on a kernel that doesn't support this + feature will have unexpected results. |