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Subject[PATCH v3 10/21] x86/kaslr: Fix off-by-one error in process_gb_huge_pages
Date
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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