ovl: check if upper fs supports RENAME_WHITEOUT
authorAmir Goldstein <amir73il@gmail.com>
Thu, 20 Feb 2020 07:00:19 +0000 (09:00 +0200)
committerMiklos Szeredi <mszeredi@redhat.com>
Tue, 17 Mar 2020 14:04:22 +0000 (15:04 +0100)
commitcad218ab3320789ea4621c15e56b8114a4160bab
tree5d58e9ba859320128d65648b9d9d01f15b012fde
parentbccece1ead368149f90e05ad104dfbfda4422f5d
ovl: check if upper fs supports RENAME_WHITEOUT

As with other required upper fs features, we only warn if support is
missing to avoid breaking existing sub-optimal setups.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
fs/overlayfs/dir.c
fs/overlayfs/overlayfs.h
fs/overlayfs/super.c