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ovl: Check redirects for metacopy files

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Right now we rely on path based lookup for data origin of metacopy upper.
This will work only if upper has not been renamed.  We solved this problem
already for merged directories using redirect.  Use same logic for metacopy
files.

This patch just goes on to check redirects for metacopy files.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Vivek Goyal 2018-05-11 11:49:31 -04:00 committed by Miklos Szeredi
parent 0618a816ed
commit b8a8824ca0
1 changed files with 2 additions and 2 deletions
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4
fs/overlayfs/namei.c
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@ -272,7 +272,8 @@ static int ovl_lookup_single(struct dentry *base, struct ovl_lookup_data *d,
d->metacopy = err;
d->stop = !d->metacopy;
goto out;
if (!d->metacopy || d->last)
goto out;
} else {
if (last_element)
d->is_dir = true;
@ -874,7 +875,6 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
if (upperdentry && !d.is_dir) {
unsigned int origin_ctr = 0;
BUG_ON(d.redirect);
/*
* Lookup copy up origin by decoding origin file handle.
* We may get a disconnected dentry, which is fine,