kernel: switch to SLUB by default in 4.4 (for improved performance)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48442

target/linux/generic/config-4.4

@@ -3619,14 +3619,16 @@ CONFIG_SIGNALFD=y
 # CONFIG_SKGE is not set
 # CONFIG_SKY2 is not set
 # CONFIG_SKY2_DEBUG is not set
-CONFIG_SLAB=y
+# CONFIG_SLAB is not set
 CONFIG_SLABINFO=y
 # CONFIG_SLHC is not set
 # CONFIG_SLICOSS is not set
 # CONFIG_SLIP is not set
 # CONFIG_SLOB is not set
-# CONFIG_SLUB is not set
+CONFIG_SLUB=y
+CONFIG_SLUB_CPU_PARTIAL=y
 # CONFIG_SLUB_DEBUG is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_SLUB_STATS is not set
 # CONFIG_SMARTJOYPLUS_FF is not set
 # CONFIG_SMC911X is not set