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(parent: 7b9764d) | patch
ovl: whiteout index when union nlink drops to zero
authorAmir Goldstein <amir73il@gmail.com>
Tue, 24 Oct 2017 14:38:33 +0000 (17:38 +0300)
committerMiklos Szeredi <mszeredi@redhat.com>
Wed, 24 Jan 2018 10:25:56 +0000 (11:25 +0100)
commit35dbf3080d92405697a77db5f402e8df85f26961
treedcba3e99e1d07da04c4f9cfec83715c4b0d169eatree | snapshot
parent7b9764d835b58a56050a5c6f5c5f52f8f2e98ad0commit | diff
ovl: whiteout index when union nlink drops to zero

With NFS export feature enabled, when overlay inode nlink drops to
zero, instead of removing the index entry, replace it with a whiteout
index entry.

This is needed for NFS export in order to prevent future open by handle
from opening the lower file directly.

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