ovl: set lower layer st_dev only if setting lower st_ino
For broken hardlinks, we do not return lower st_ino, so we should
also not return lower pseudo st_dev.
Fixes: a0c5ad307a
("ovl: relax same fs constraint for constant st_ino")
Cc: <stable@vger.kernel.org> #v4.15
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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@ -118,13 +118,10 @@ int ovl_getattr(const struct path *path, struct kstat *stat,
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*/
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*/
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if (ovl_test_flag(OVL_INDEX, d_inode(dentry)) ||
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if (ovl_test_flag(OVL_INDEX, d_inode(dentry)) ||
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(!ovl_verify_lower(dentry->d_sb) &&
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(!ovl_verify_lower(dentry->d_sb) &&
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(is_dir || lowerstat.nlink == 1)))
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(is_dir || lowerstat.nlink == 1))) {
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stat->ino = lowerstat.ino;
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stat->ino = lowerstat.ino;
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if (samefs)
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WARN_ON_ONCE(stat->dev != lowerstat.dev);
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else
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stat->dev = ovl_get_pseudo_dev(dentry);
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stat->dev = ovl_get_pseudo_dev(dentry);
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}
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}
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}
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if (samefs) {
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if (samefs) {
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/*
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/*
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