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(parent: 8cce40b) | patch
ovl: check if all layers are on the same fs
authorAmir Goldstein <amir73il@gmail.com>
Wed, 22 Mar 2017 12:42:21 +0000 (08:42 -0400)
committerMiklos Szeredi <mszeredi@redhat.com>
Fri, 5 May 2017 09:38:57 +0000 (11:38 +0200)
commit16b66c995ae5c4ba7606c3d660510734e1a28b2a
tree0b7b0bb5dd7848ad6572b50d64ad81059e2b5faetree | snapshot
parent8cce40b06d1e565c544dcedbd35a7ce34ab0890fcommit | diff
ovl: check if all layers are on the same fs

Some features can only work when all layers are on the same fs.  Test this
condition during mount time, so features can check them later.

Add helper ovl_same_sb() to return the common super block in case all
layers are on the same fs.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
fs/overlayfs/overlayfs.h diff | blob | history
fs/overlayfs/ovl_entry.h diff | blob | history
fs/overlayfs/super.c diff | blob | history
fs/overlayfs/util.c diff | blob | history
Linux Kernel Source Tree.