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ovl: consistent i_ino for non-samefs with xino

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When overlay layers are not all on the same fs, but all inode numbers
of underlying fs do not use the high 'xino' bits, overlay st_ino values
are constant and persistent.

In that case, set i_ino value to the same value as st_ino for nfsd
readdirplus validator.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Amir Goldstein
2018-03-16 10:39:37 +02:00
committed by Miklos Szeredi
parent e487d889b7
commit 12574a9f4c
4 changed files with 21 additions and 14 deletions
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4
fs/overlayfs/namei.c
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@@ -1004,9 +1004,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
upperdentry = dget(index);
if (upperdentry || ctr) {
if (ctr)
origin = stack[0].dentry;
inode = ovl_get_inode(dentry->d_sb, upperdentry, origin, index,
inode = ovl_get_inode(dentry->d_sb, upperdentry, stack, index,
ctr);
err = PTR_ERR(inode);
if (IS_ERR(inode))