ovl: verify directory index entries on mount

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Directory index entries should have 'upper' xattr pointing to the real
upper dir. Verifying that the upper dir file handle is not stale is
expensive, so only verify stale directory index entries on mount if
NFS export feature is enabled.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

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Amir Goldstein 2018-01-11 11:33:24 +02:00 • committed by Miklos Szeredi

parent 7db25d36d9

commit e8f9e5b780

2 changed files with 94 additions and 32 deletions

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1

fs/dcache.c

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127

fs/overlayfs/namei.c

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