Police said Saturday a 21-year-old victim stabbed numerous times was in critical condition at Brookdale Hospital. Three others were stable.
The Djumbala club is in the Canarsie section of Brooklyn. Police did not immediately release further information.
While the party had been promoted as the "official" after-party, "Notorious" distributor, Fox Searchlight, said it was not related.
Smalls was born Christopher Wallace and also used the stage name "Notorious B.I.G."
His debut CD, 1994's "Ready to Die," helped re-energize East Coast rap. He was killed in Los Angeles in 1997.
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