| Message ID | 20211009093724.10539-3-linyunsheng@huawei.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | some optimization for page pool | expand |
diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 9b60e4301a44..2c643b72ce16 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -24,7 +24,7 @@ #define DEFER_TIME (msecs_to_jiffies(1000)) #define DEFER_WARN_INTERVAL (60 * HZ) -#define BIAS_MAX LONG_MAX +#define BIAS_MAX (LONG_MAX / 2) static int page_pool_init(struct page_pool *pool, const struct page_pool_params *params)
As the page->pp_frag_count need incrementing for pp page frag tracking support, so change BIAS_MAX to (LONG_MAX / 2) to avoid overflowing. Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> --- net/core/page_pool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)