| From | Arvind Sankar <> | Subject | [PATCH v3 10/21] x86/kaslr: Fix off-by-one error in process_gb_huge_pages | Date | Tue, 28 Jul 2020 18:57:11 -0400 |
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If the remaining size of the region is exactly 1Gb, there is still one hugepage that can be reserved.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> --- arch/x86/boot/compressed/kaslr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c index d074986e8061..0df513e3e2ce 100644 --- a/arch/x86/boot/compressed/kaslr.c +++ b/arch/x86/boot/compressed/kaslr.c @@ -562,7 +562,7 @@ process_gb_huge_pages(struct mem_vector *region, unsigned long image_size) size = region->size - (addr - region->start); /* Check how many 1GB huge pages can be filtered out: */ - while (size > PUD_SIZE && max_gb_huge_pages) { + while (size >= PUD_SIZE && max_gb_huge_pages) { size -= PUD_SIZE; max_gb_huge_pages--; i++; -- 2.26.2
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