Re: [GIT PULL 00/19] LightNVM patches for 4.12.

On 04/15/2017 12:55 PM, Matias Bjørling wrote: > Hi Jens, > > With this merge window, we like to push pblk upstream. It is a new > host-side translation layer that implements support for exposing > Open-Channel SSDs as block devices. > > We have described pblk in the LightNVM paper "LightNVM:

Re: [PATCH 0/4] blk-mq-sched: allow to use hw tag for sched

On Sat, Apr 15, 2017 at 08:38:21PM +0800, Ming Lei wrote: > The 1st patch enhances BLK_MQ_F_NO_SCHED so that we can't change/ > show available io schedulers on devices which don't support io > scheduler. > > The 2nd patch passes BLK_MQ_F_NO_SCHED for avoiding one regression > on mtip32xx, which

[GIT PULL] A few small fixes for 4.11-rc

Hi Linus, Four small fixes. Three of them fix the same error in NVMe, in loop, fc, and rdma respectively. The last one fix from Ming fixes a regression in this series, where our bvec gap logic was wrong and causes an oops on NVMe for certain conditions. Please pull!

Kernel Oops: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050; IP is at blk_mq_poll+0xa0/0x2e0

Hi All As part of my testing of IO polling [1] I am seeing a NULL pointer dereference oops that seems to have been introduced in the preparation for 4.11. The kernel oops output is below and this seems to be due to blk_mq_tag_to_rq returning NULL in blk_mq_poll in blk-mq.c. I have not had a

Re: [PATCH v4 6/6] dm rq: Avoid that request processing stalls sporadically

On Fri, Apr 14, 2017 at 05:12:50PM +, Bart Van Assche wrote: > On Fri, 2017-04-14 at 09:13 +0800, Ming Lei wrote: > > On Thu, Apr 13, 2017 at 09:59:57AM -0700, Bart Van Assche wrote: > > > On 04/12/17 19:20, Ming Lei wrote: > > > > On Wed, Apr 12, 2017 at 06:38:07PM +, Bart Van Assche

[PATCH 4.4 13/18] blk-mq: Avoid memory reclaim when remapping queues

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Gabriel Krisman Bertazi commit 36e1f3d107867b25c616c2fd294f5a1c9d4e5d09 upstream. While stressing memory and IO at the same time we changed SMT settings, we were

[PATCH 4.9 26/31] blk-mq: Avoid memory reclaim when remapping queues

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Gabriel Krisman Bertazi commit 36e1f3d107867b25c616c2fd294f5a1c9d4e5d09 upstream. While stressing memory and IO at the same time we changed SMT settings, we were

Re: [PATCH V3 00/16] Introduce the BFQ I/O scheduler

On 11.04.2017, Paolo Valente wrote: > new patch series, addressing (both) issues raised by Bart [1]. I'm doing a lot of automatic video transcoding in order to get my collection of homemade videos down to an acceptable size (mainly landscapes and boats all over the Norwegian west coast, taken