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[SPARC64]: Fix off-by-1 error in TSB grow check.

The worst part about this bug is what it would cause
a hugepage TSB to be allocated for every address space
since "0 >= 0".

Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller 19 năm trước cách đây
mục cha
commit
7bebd83dbf
1 tập tin đã thay đổi với 2 bổ sung2 xóa
  1. 2 2
      arch/sparc64/mm/fault.c

+ 2 - 2
arch/sparc64/mm/fault.c

@@ -413,12 +413,12 @@ good_area:
 #ifdef CONFIG_HUGETLB_PAGE
 	mm_rss -= (mm->context.huge_pte_count * (HPAGE_SIZE / PAGE_SIZE));
 #endif
-	if (unlikely(mm_rss >=
+	if (unlikely(mm_rss >
 		     mm->context.tsb_block[MM_TSB_BASE].tsb_rss_limit))
 		tsb_grow(mm, MM_TSB_BASE, mm_rss);
 #ifdef CONFIG_HUGETLB_PAGE
 	mm_rss = mm->context.huge_pte_count;
-	if (unlikely(mm_rss >=
+	if (unlikely(mm_rss >
 		     mm->context.tsb_block[MM_TSB_HUGE].tsb_rss_limit))
 		tsb_grow(mm, MM_TSB_HUGE, mm_rss);
 #endif