lkml.org 
[lkml]   [2017]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] nvme: make controller 'state' sysfs attribute pollable
From
Date


On 2017/9/20 22:59, Christoph Hellwig wrote:
> On Wed, Sep 20, 2017 at 12:40:32PM +0200, Johannes Thumshirn wrote:
>> Notify sysfs about changes of a nvme controller so user-space can watch the
>> file via poll() or select() in order to react to a state change.
>
> Userspace has no business polling for the state.
>

Please consider this patch. At least upstream multipath-tools is using the sysfs state now:
[1] https://git.opensvc.com/gitweb.cgi?p=multipath-tools/.git;a=commitdiff;h=29c3b0446c4d919859f9e87b291563d483aab594
[2] https://git.opensvc.com/gitweb.cgi?p=multipath-tools/.git;a=commitdiff;h=d2561442cc0b444e8a728bac2c1466468816ee9d

> _______________________________________________
> Linux-nvme mailing list
> Linux-nvme@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-nvme
>
>

\
 
 \ /
  Last update: 2017-09-21 19:32    [W:7.113 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site