+ hugetlbfs-fix-issue-of-preallocation-of-gigantic-pages-cant-work.patch added to -mm tree

+ hugetlbfs-fix-issue-of-preallocation-of-gigantic-pages-cant-work.patch added to -mm tree

[akpm]

The patch titled
     Subject: hugetlbfs: fix issue of preallocation of gigantic pages can't work
has been added to the -mm tree.  Its filename is
     hugetlbfs-fix-issue-of-preallocation-of-gigantic-pages-cant-work.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/hugetlbfs-fix-issue-of-preallocation-of-gigantic-pages-cant-work.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/hugetlbfs-fix-issue-of-preallocation-of-gigantic-pages-cant-work.patch

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------------------------------------------------------
From: Zhenguo Yao <yaozhenguo1@gmail.com>
Subject: hugetlbfs: fix issue of preallocation of gigantic pages can't work

Preallocation of gigantic pages can't work bacause of commit b5389086ad7b
("hugetlbfs: extend the definition of hugepages parameter to support node
allocation").  When nid is NUMA_NO_NODE(-1), alloc_bootmem_huge_page will
always return without doing allocation.  Fix this by adding more check.

Link: https://lkml.kernel.org/r/20211129133803.15653-1-yaozhenguo1@gmail.com
Fixes: b5389086ad7b ("hugetlbfs: extend the definition of hugepages parameter to support node allocation")
Signed-off-by: Zhenguo Yao <yaozhenguo1@gmail.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/hugetlb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/hugetlb.c~hugetlbfs-fix-issue-of-preallocation-of-gigantic-pages-cant-work
+++ a/mm/hugetlb.c
@@ -2973,7 +2973,7 @@ int __alloc_bootmem_huge_page(struct hst
 	struct huge_bootmem_page *m = NULL; /* initialize for clang */
 	int nr_nodes, node;
 
-	if (nid >= nr_online_nodes)
+	if (nid != NUMA_NO_NODE && nid >= nr_online_nodes)
 		return 0;
 	/* do node specific alloc */
 	if (nid != NUMA_NO_NODE) {
_

Patches currently in -mm which might be from yaozhenguo1@gmail.com are

hugetlbfs-fix-issue-of-preallocation-of-gigantic-pages-cant-work.patch