Commit 4919c5e4 authored by Al Viro's avatar Al Viro

fix race in d_splice_alias()

rehashing the negative placeholder opens a race with d_lookup();
we unhash it almost immediately (by d_move()), but the race
window is there.  Since d_move() doesn't rely on target being
hashed, we don't need that d_rehash() at all.
Signed-off-by: default avatarAl Viro <>
parent bec1052e
......@@ -1222,7 +1222,6 @@ struct dentry *d_splice_alias(struct inode *inode, struct dentry *dentry)
BUG_ON(!(new->d_flags & DCACHE_DISCONNECTED));
security_d_instantiate(new, inode);
d_move(new, dentry);
} else {
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