[0/2] blk-mq: two fixes about updating hw queues

Message

jianchao.wang Sept. 27, 2018, 10:43 a.m. UTC

Hi Jens

This patch set fixes two defects during update hw queues.

1st patch refactor the blk-mq debugfs and sysfs register during
blk_mq_update_nr_hw_queues.

2nd patch should be able to fix the panic reported in follwing link
https://marc.info/?l=linux-block&m=153799465603723&w=2

Jianchao Wang (2)
blk-mq: adjust debugfs and sysfs register when updating nr_hw_queues
blk-mq: fallback to previous nr_hw_queues when updating fails

block/blk-mq.c | 79 ++++++++++++++++++++++++++++++++++------------------------
1 file changed, 47 insertions(+), 32 deletions(-)

Thanks
Jianchao

Comments

jianchao.wang Oct. 9, 2018, 1:41 a.m. UTC | #1

Would anyone please take a look at this patch ?

Thanks in advance
Jianchao

On 09/27/2018 06:43 PM, Jianchao Wang wrote:
> Hi Jens
> 
> This patch set fixes two defects during update hw queues.
> 
> 1st patch refactor the blk-mq debugfs and sysfs register during
> blk_mq_update_nr_hw_queues.
> 
> 2nd patch should be able to fix the panic reported in follwing link
> https://urldefense.proofpoint.com/v2/url?u=https-3A__marc.info_-3Fl-3Dlinux-2Dblock-26m-3D153799465603723-26w-3D2&d=DwIBAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=7WdAxUBeiTUTCy8v-7zXyr4qk7sx26ATvfo6QSTvZyQ&m=JoGIFiPF4RF8WH8rquW8Qswr2FYvPOVaTxlgmjKHsDk&s=TQn_KiIX2sfmXP_9IYy2IFFRxBj4jBKVaSSU-I1z9g8&e=
> 
> Jianchao Wang (2)
> blk-mq: adjust debugfs and sysfs register when updating nr_hw_queues
> blk-mq: fallback to previous nr_hw_queues when updating fails
> 
> block/blk-mq.c | 79 ++++++++++++++++++++++++++++++++++------------------------
> 1 file changed, 47 insertions(+), 32 deletions(-)
> 
> Thanks
> Jianchao
>