fuse: fix d_revalidate oopsen on NFS exports
can't blindly check nd->flags in ->d_revalidate() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -158,7 +158,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd)
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{
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{
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struct inode *inode;
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struct inode *inode;
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if (nd->flags & LOOKUP_RCU)
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if (nd && nd->flags & LOOKUP_RCU)
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return -ECHILD;
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return -ECHILD;
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inode = entry->d_inode;
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inode = entry->d_inode;
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