mm: Boost when memory pressure becomes high

When memory pressure starts to balloon, allocation latency takes a hit
as the page allocator continuously tries to find a way to free up some
pages. Boosting when this occurs can significantly help reduce
allocation latency, preventing noticeable lag from being observed.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: Yaroslav Furman <yaro330@gmail.com>
Signed-off-by: PrimoDev23 <lexx.ps2711@gmail.com>
Signed-off-by: Sudeep Duhoon <rishi.gothic@gmail.com>

mm/page_alloc.c

@@ -69,6 +69,8 @@
 #include <linux/lockdep.h>
 #include <linux/nmi.h>
 #include <linux/psi.h>
+#include <linux/cpu_input_boost.h>
+#include <linux/devfreq_boost.h>
 
 #include <asm/sections.h>
 #include <asm/tlbflush.h>
@@ -4160,6 +4162,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
 
 	/* Boost when memory is low so allocation latency doesn't get too bad */
 	devfreq_boost_kick_max(DEVFREQ_MSM_LLCCBW, 100);
+	cpu_input_boost_kick_max(100);
 	devfreq_boost_kick_max(DEVFREQ_MSM_CPUBW, 100);
 
 	if (should_reclaim_retry(gfp_mask, order, ac, alloc_flags,