nagai/kernel
3
0
Fork 0
forked from mirrors/linux
Code Pull requests Activity

hugetlbfs: fix issue of preallocation of gigantic pages can't work

Browse source 
Preallocation of gigantic pages can't work bacause of commit
b5389086ad ("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: b5389086ad ("hugetlbfs: extend the definition of hugepages parameter to support node allocation")
Signed-off-by: Zhenguo Yao <yaozhenguo1@gmail.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Tested-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Zhenguo Yao 2021-12-10 14:47:08 -08:00 committed by Linus Torvalds
parent a7ebf564de
commit 4178158ef8
1 changed files with 1 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

2
mm/hugetlb.c
View file

@ -2973,7 +2973,7 @@ int __alloc_bootmem_huge_page(struct hstate *h, int nid)
struct huge_bootmem_page *m = NULL; /* initialize for clang */ struct huge_bootmem_page *m = NULL; /* initialize for clang */
int nr_nodes, node; int nr_nodes, node;
if (nid >= nr_online_nodes) if (nid != NUMA_NO_NODE && nid >= nr_online_nodes)
return 0; return 0;
/* do node specific alloc */ /* do node specific alloc */
if (nid != NUMA_NO_NODE) { if (nid != NUMA_NO_NODE) {