lkml.org 
[lkml]   [2019]   [Sep]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] async: Let kfree() out of the critical area of the lock
From
Date
On 9/26/19 4:06 AM, David Sterba wrote:
> On Thu, Sep 26, 2019 at 03:58:36PM +0800, Yunfeng Ye wrote:
>> The async_lock is big global lock, I think it's good to put kfree() outside
>> to keep the critical area as short as possible.
>
> Agreed, kfree is not always cheap. We had patches in btrfs moving kfree
> out of critical section(s) after causing softlockups due to increased lock
> contention.

The above would be a great addition for the commit description. Anyway:

Reviewed-by: Bart Van Assche <bvanassche@acm.org>

\
 
 \ /
  Last update: 2019-09-26 17:19    [W:1.186 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site