lkml.org 
[lkml]   [2020]   [Jun]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Subject[PATCH RFC 0/3] block: allow REQ_NOWAIT to some bio-based/stacked devices
From
Date
Here is pretty straight forward attempt of handling REQ_NOWAIT for
bio-based and stacked devices.

They are marked with flag queue->limits.nowait_requests which tells that
queue method make_request() handles REQ_NOWAIT or doesn't delay requests,
and all backend devices do the same.

As a example second/third patches add support into md-raid0 and dm-linear.

---

Konstantin Khlebnikov (3):
block: add flag 'nowait_requests' into queue limits
md/raid0: enable REQ_NOWAIT
dm: add support for REQ_NOWAIT and enable for target dm-linear


drivers/md/dm-linear.c | 5 +++--
drivers/md/dm-table.c | 3 +++
drivers/md/dm.c | 4 +++-
drivers/md/raid0.c | 3 +++
include/linux/device-mapper.h | 6 ++++++
5 files changed, 18 insertions(+), 3 deletions(-)

--
Signature

\
 
 \ /
  Last update: 2020-06-01 14:38    [W:0.116 / U:0.424 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site