Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/mm/zbud.c b/mm/zbud.c
index de5dd4d..c49966e 100644
--- a/mm/zbud.c
+++ b/mm/zbud.c
@@ -243,7 +243,7 @@
 	zhdr->last_chunks = 0;
 	INIT_LIST_HEAD(&zhdr->buddy);
 	INIT_LIST_HEAD(&zhdr->lru);
-	zhdr->under_reclaim = 0;
+	zhdr->under_reclaim = false;
 	return zhdr;
 }
 
@@ -367,7 +367,6 @@
 	spin_lock(&pool->lock);
 
 	/* First, try to find an unbuddied zbud page. */
-	zhdr = NULL;
 	for_each_unbuddied_list(i, chunks) {
 		if (!list_empty(&pool->unbuddied[i])) {
 			zhdr = list_first_entry(&pool->unbuddied[i],