[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CAOUHufZwT+x3UG9guoyheUsR6rhvqMSH-n+-zWzdFUiO4_ZtCQ@mail.gmail.com>
Date: Wed, 15 Jun 2022 16:43:03 -0600
From: Yu Zhao <yuzhao@...gle.com>
To: Mel Gorman <mgorman@...hsingularity.net>,
Andrew Morton <akpm@...ux-foundation.org>
Cc: Nicolas Saenz Julienne <nsaenzju@...hat.com>,
Marcelo Tosatti <mtosatti@...hat.com>,
Vlastimil Babka <vbabka@...e.cz>,
Michal Hocko <mhocko@...nel.org>,
Hugh Dickins <hughd@...gle.com>,
LKML <linux-kernel@...r.kernel.org>,
Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCH 7/7] mm/page_alloc: Replace local_lock with normal spinlock
On Mon, Jun 13, 2022 at 8:54 AM Mel Gorman <mgorman@...hsingularity.net> wrote:
...
> +#define pcpu_spin_trylock_irqsave(type, member, ptr, flags) \
> +({ \
> + type *_ret; \
> + pcpu_task_pin(); \
> + _ret = this_cpu_ptr(ptr); \
> + if (!spin_trylock_irqsave(&_ret->member, flags)) \
> + _ret = NULL; \
I'm getting "BUG: sleeping function called from invalid context" with
mm-everything-2022-06-14-19-05.
Perhaps missing a pcpu_task_unpin() here?
> + _ret; \
> +})
Powered by blists - more mailing lists