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x86/kaslr: Fix off-by-one error in process_gb_huge_pages()

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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>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200728225722.67457-11-nivedita@alum.mit.edu
This commit is contained in:
Arvind Sankar 2020-07-28 18:57:11 -04:00 committed by Ingo Molnar
parent bf457be154
commit 79c2fd2afe
1 changed files with 1 additions and 1 deletions
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arch/x86/boot/compressed/kaslr.c
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@ -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++;