On Thu, 14 Dec 2023 at 06:30, Liang Chen <liangchen.linux@xxxxxxxxx> wrote: > > Up to now, we were only subtracting from the number of used page fragments > to figure out when a page could be freed or recycled. A following patch > introduces support for multiple users referencing the same fragment. So > reduce the initial page fragments value to half to avoid overflowing. > > Signed-off-by: Liang Chen <liangchen.linux@xxxxxxxxx> > Reviewed-by: Yunsheng Lin <linyunsheng@xxxxxxxxxx> > Reviewed-by: Mina Almasry <almarsymina@xxxxxxxxxx> > --- > net/core/page_pool.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/net/core/page_pool.c b/net/core/page_pool.c > index 106220b1f89c..436f7ffea7b4 100644 > --- a/net/core/page_pool.c > +++ b/net/core/page_pool.c > @@ -26,7 +26,7 @@ > #define DEFER_TIME (msecs_to_jiffies(1000)) > #define DEFER_WARN_INTERVAL (60 * HZ) > > -#define BIAS_MAX LONG_MAX > +#define BIAS_MAX (LONG_MAX >> 1) > > #ifdef CONFIG_PAGE_POOL_STATS > /* alloc_stat_inc is intended to be used in softirq context */ > -- > 2.31.1 > Reviewed-by: Ilias Apalodimas <ilias.apalodimas@xxxxxxxxxx>
