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authorAmir Goldstein <amir73il@gmail.com>2023-10-02 17:19:46 +0300
committerAmir Goldstein <amir73il@gmail.com>2023-12-23 16:35:08 +0200
commitf91a704f7161c2cf0fcd41fa9fbec4355b813fff (patch)
treec1af6faa09cad5d82be32ae5d76381cb79c4de19 /fs/overlayfs/Kconfig
parentd9e5d31084b024734e64307521414ef0ae1d5333 (diff)
fs: prepare for stackable filesystems backing file helpers
In preparation for factoring out some backing file io helpers from overlayfs, move backing_file_open() into a new file fs/backing-file.c and header. Add a MAINTAINERS entry for stackable filesystems and add a Kconfig FS_STACK which stackable filesystems need to select. For now, the backing_file struct, the backing_file alloc/free functions and the backing_file_real_path() accessor remain internal to file_table.c. We may change that in the future. Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Diffstat (limited to 'fs/overlayfs/Kconfig')
-rw-r--r--fs/overlayfs/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/overlayfs/Kconfig b/fs/overlayfs/Kconfig
index fec5020c3495..2ac67e04a6fb 100644
--- a/fs/overlayfs/Kconfig
+++ b/fs/overlayfs/Kconfig
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
config OVERLAY_FS
tristate "Overlay filesystem support"
+ select FS_STACK
select EXPORTFS
help
An overlay filesystem combines two filesystems - an 'upper' filesystem