Re: [PATCH v3 4/7] sched/fair: Introduce a CPU capacity comparison helper

2021-03-31 Thread Chandra Sekhar Lingutla
Hi Valentin, The reduced margin is helping our platforms, Please feel free to add my tested-by tag: Tested-by:  Lingutla Chandrasekhar On 3/11/2021 5:35 PM, Valentin Schneider wrote: During load-balance, groups classified as group_misfit_task are filtered out if they do not pass group_s

Re: [PATCH v3 5/7] sched/fair: Employ capacity_greater() throughout load_balance()

2021-03-31 Thread Chandra Sekhar Lingutla
Hi Valentin, The reduced margin is helping our platforms, Please feel free to add my tested-by tag: Tested-by:  Lingutla Chandrasekhar On 3/11/2021 5:35 PM, Valentin Schneider wrote: While at it, replace group_smaller_{min, max}_cpu_capacity() with comparisons of the source group's min/max

Re: [PATCH v3 1/7] sched/fair: Ignore percpu threads for imbalance pulls

2021-03-16 Thread Chandra Sekhar Lingutla
Hi Dietmar, On 3/16/2021 9:19 PM, Dietmar Eggemann wrote: On 11/03/2021 13:05, Valentin Schneider wrote: From: Lingutla Chandrasekhar In load balancing, when balancing group is unable to pull task due to ->cpus_ptr constraints from busy group, then it sets LBF_SOME_PINNED to lb env flags, as

Re: [PATCH] kernel: time: forward timer base before migrating timers

2018-01-17 Thread Chandra Sekhar Lingutla
Hi, Sorry for the basic mistakes, posted new patch V1. On 1/17/2018 5:39 PM, Thomas Gleixner wrote: On Wed, 17 Jan 2018, Thomas Gleixner wrote: On Wed, 17 Jan 2018, Lingutla Chandrasekhar wrote: And please fix the subject line: kernel: time: is not the proper subsystem prefix. git log

Re: [PATCH] driver core: fix race between creating/querying glue dir and its cleanup

2016-05-09 Thread Chandra Sekhar Lingutla
Hi Ming/ Greg Curious to know your comments on this patch. On 04/26/2016 10:57 PM, Chandra Sekhar Lingutla wrote: Hi Ming, On 03/28/2016 01:57 PM, Ming Lei wrote: The global mutex of 'gdp_mutex' is used to serialize creating/querying glue dir and its cleanup. Turns out it isn'

Re: [PATCH] driver core: fix race between creating/querying glue dir and its cleanup

2016-04-26 Thread Chandra Sekhar Lingutla
of the glue dir kobject. That means gdp_mutex has to be held before releasing the last reference count of the glue dir kobject. This patch moves glue dir's cleanup after kobject_del() in device_del() for avoiding the race. Cc: Yijing Wang Reported-by: Chandra Sekhar Lingutla Signed-off-by: Min

Re: Possible race at user mode helper in request_firmware

2016-03-19 Thread Chandra Sekhar Lingutla
Hi Ming, On 03/16/2016 03:55 PM, Ming Lei wrote: On Wed, 16 Mar 2016 15:21:24 +0530 Chandra Sekhar Lingutla wrote: Hi Ming, On 03/16/2016 02:34 PM, Chandra Sekhar Lingutla wrote: On 03/16/2016 02:28 PM, Ming Lei wrote: On Wed, Mar 16, 2016 at 4:48 PM, Chandra Sekhar Lingutla wrote: On

Re: Possible race at user mode helper in request_firmware

2016-03-16 Thread Chandra Sekhar Lingutla
Hi Ming, On 03/16/2016 02:34 PM, Chandra Sekhar Lingutla wrote: On 03/16/2016 02:28 PM, Ming Lei wrote: On Wed, Mar 16, 2016 at 4:48 PM, Chandra Sekhar Lingutla wrote: On 03/16/2016 02:12 PM, Ming Lei wrote: On Wed, Mar 16, 2016 at 3:02 PM, Chandra Sekhar Lingutla wrote: Hi Ming, On

Re: Possible race at user mode helper in request_firmware

2016-03-16 Thread Chandra Sekhar Lingutla
On 03/16/2016 02:28 PM, Ming Lei wrote: On Wed, Mar 16, 2016 at 4:48 PM, Chandra Sekhar Lingutla wrote: On 03/16/2016 02:12 PM, Ming Lei wrote: On Wed, Mar 16, 2016 at 3:02 PM, Chandra Sekhar Lingutla wrote: Hi Ming, On 03/16/2016 07:36 AM, Ming Lei wrote: On Tue, Mar 15, 2016 at 11

Re: Possible race at user mode helper in request_firmware

2016-03-16 Thread Chandra Sekhar Lingutla
On 03/16/2016 02:12 PM, Ming Lei wrote: On Wed, Mar 16, 2016 at 3:02 PM, Chandra Sekhar Lingutla wrote: Hi Ming, On 03/16/2016 07:36 AM, Ming Lei wrote: On Tue, Mar 15, 2016 at 11:09 PM, Ming Lei wrote: Hi, On Mon, Mar 14, 2016 at 8:00 PM, wrote: Hello, I see possible race in

Re: Possible race at user mode helper in request_firmware

2016-03-16 Thread Chandra Sekhar Lingutla
Hi Ming, On 03/16/2016 07:36 AM, Ming Lei wrote: On Tue, Mar 15, 2016 at 11:09 PM, Ming Lei wrote: Hi, On Mon, Mar 14, 2016 at 8:00 PM, wrote: Hello, I see possible race in _request_firmware_load function, on which I wanted to take your opinion. When system is going to low power mode, de