[TCP]: Don't use highmem in tcp hash size calculation.

This patch removes consideration of high memory when determining TCP
hash table sizes. Taking into account high memory results in tcp_mem
values that are too large.

Signed-off-by: John Heffner <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/ipv4/tcp.c

···
 					thash_entries,
 					(num_physpages >= 128 * 1024) ?
 					13 : 15,
-					HASH_HIGHMEM,
+					0,
 					&tcp_hashinfo.ehash_size,
 					NULL,
 					0);
···
 					tcp_hashinfo.ehash_size,
 					(num_physpages >= 128 * 1024) ?
 					13 : 15,
-					HASH_HIGHMEM,
+					0,
 					&tcp_hashinfo.bhash_size,
 					NULL,
 					64 * 1024);