lkml.org 
[lkml]   [2018]   [Nov]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 03/13] blkcg: convert blkg_lookup_create() to find closest blkg
On Mon, Nov 26, 2018 at 04:19:36PM -0500, Dennis Zhou wrote:
> There are several scenarios where blkg_lookup_create() can fail such as
> the blkcg dying, request_queue is dying, or simply being OOM. Most
> handle this by simply falling back to the q->root_blkg and calling it a
> day.
>
> This patch implements the notion of closest blkg. During
> blkg_lookup_create(), if it fails to create, return the closest blkg
> found or the q->root_blkg. blkg_try_get_closest() is introduced and used
> during association so a bio is always attached to a blkg.
>
> Signed-off-by: Dennis Zhou <dennis@kernel.org>
> Acked-by: Tejun Heo <tj@kernel.org>

Reviewed-by: Josef Bacik <josef@toxicpanda.com>

Thanks,

Josef

\
 
 \ /
  Last update: 2018-11-27 22:02    [W:0.103 / U:0.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site