[lkml]   [2019]   [Oct]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v11 0/6] mm / virtio: Provide support for unused page reporting

On 10/1/19 4:51 PM, Dave Hansen wrote:
> On 10/1/19 1:49 PM, Alexander Duyck wrote:
>> So it looks like v12 still has issues. I'm pretty sure you should be using
>> spin_lock_irq(), not spin_lock() in page_reporting.c to avoid the
>> possibility of an IRQ firing and causing lock recursion on the zone lock.
> Lockdep should make all of this a lot easier to find. Is it being used?

I do have it in the function which returns the pages to the buddy but I missed
it in the function that isolates the pages.
I will correct this.


 \ /
  Last update: 2019-10-02 17:06    [W:0.061 / U:4.628 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site