[folded-merged] mm-store-zero-pages-to-be-swapped-out-in-a-bitmap-v6.patch removed from -mm tree

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The quilt patch titled
     Subject: mm-store-zero-pages-to-be-swapped-out-in-a-bitmap-v6
has been removed from the -mm tree.  Its filename was
     mm-store-zero-pages-to-be-swapped-out-in-a-bitmap-v6.patch

This patch was dropped because it was folded into mm-store-zero-pages-to-be-swapped-out-in-a-bitmap.patch

------------------------------------------------------
From: Usama Arif <usamaarif642@xxxxxxxxx>
Subject: mm-store-zero-pages-to-be-swapped-out-in-a-bitmap-v6
Date: Mon, 24 Jun 2024 15:01:28 +0100

Change bitmap_zalloc/free to kvzalloc/free as a very large swap file will
result in the allocation order to exceed MAX_PAGE_ORDER resulting in
bitmap_zalloc to fail.  

Link: https://lkml.kernel.org/r/20240624140427.1334871-2-usamaarif642@xxxxxxxxx
Signed-off-by: Usama Arif <usamaarif642@xxxxxxxxx>
Reviewed-by: Chengming Zhou <chengming.zhou@xxxxxxxxx>
Reviewed-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Reviewed-by: Nhat Pham <nphamcs@xxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Shakeel Butt <shakeel.butt@xxxxxxxxx>
Cc: Usama Arif <usamaarif642@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/swapfile.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/mm/swapfile.c~mm-store-zero-pages-to-be-swapped-out-in-a-bitmap-v6
+++ a/mm/swapfile.c
@@ -2653,7 +2653,7 @@ SYSCALL_DEFINE1(swapoff, const char __us
 	free_percpu(p->cluster_next_cpu);
 	p->cluster_next_cpu = NULL;
 	vfree(swap_map);
-	bitmap_free(p->zeromap);
+	kvfree(p->zeromap);
 	kvfree(cluster_info);
 	/* Destroy swap account information */
 	swap_cgroup_swapoff(p->type);
@@ -3180,7 +3180,7 @@ SYSCALL_DEFINE2(swapon, const char __use
 		goto bad_swap_unlock_inode;
 	}
 
-	p->zeromap = bitmap_zalloc(maxpages, GFP_KERNEL);
+	p->zeromap = kvzalloc(DIV_ROUND_UP(maxpages, 8), GFP_KERNEL);
 	if (!p->zeromap) {
 		error = -ENOMEM;
 		goto bad_swap_unlock_inode;
_

Patches currently in -mm which might be from usamaarif642@xxxxxxxxx are

mm-store-zero-pages-to-be-swapped-out-in-a-bitmap.patch
mm-store-zero-pages-to-be-swapped-out-in-a-bitmap-v7.patch
mm-store-zero-pages-to-be-swapped-out-in-a-bitmap-v8.patch
mm-remove-code-to-handle-same-filled-pages.patch





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