From: zijun_hu <zijun_hu@xxxxxxx>
correct lazy_max_pages() return value if the number of online
CPUs is power of 2
Signed-off-by: zijun_hu <zijun_hu@xxxxxxx>
---
mm/vmalloc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index a125ae8..2804224 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -594,7 +594,9 @@ static unsigned long lazy_max_pages(void)
{
unsigned int log;
- log = fls(num_online_cpus());
+ log = num_online_cpus();
+ if (log > 1)
+ log = (unsigned int)get_count_order(log);
return log * (32UL * 1024 * 1024 / PAGE_SIZE);
}
--
1.9.1
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