NFS: Don't hash the negative dentry when optimising for an O_EXCL open
We don't want to leave an unverified hashed negative dentry if the
exclusive create fails to complete.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 796bc8e..0748c70 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1879,11 +1879,12 @@
}
state = nfs4_do_open(dir, &path, flags, sattr, cred);
put_rpccred(cred);
+ d_drop(dentry);
if (IS_ERR(state)) {
status = PTR_ERR(state);
goto out;
}
- d_instantiate(dentry, igrab(state->inode));
+ d_add(dentry, igrab(state->inode));
if (flags & O_EXCL) {
struct nfs_fattr fattr;
status = nfs4_do_setattr(state->inode, &fattr, sattr, state);