Re: [RFC PATCH-tip v4 02/10] locking/rwsem: Stop active read lock ASAP

2016-10-09 Thread Christoph Hellwig
On Fri, Oct 07, 2016 at 08:47:51AM +1100, Dave Chinner wrote: > Except that it's DAX, and in 4.7-rc1 that used shared locking at the > XFS level and never took exclusive locks. > > *However*, the DAX IO path locking in XFS has changed in 4.9-rc1 to > match the buffered IO single writer POSIX

Re: [PATCHv2] hwmon: Add tc654 driver

2016-10-09 Thread Chris Packham
Hi Gunter, Thanks for the review. v3 on it's way some responses below. On 10/08/2016 07:29 AM, Guenter Roeck wrote: > On Fri, Oct 07, 2016 at 02:38:44PM +1300, Chris Packham wrote: >> Add support for the tc654 and tc655 fan controllers from Microchip. >> >>

[PATCH] locking/osq: Provide proper lock/unlock and relaxed flavors

2016-10-09 Thread Davidlohr Bueso
Because osq has only been used for mutex/rwsem spinning logic, we have gotten away with being rather flexible in any of the traditional lock/unlock ACQUIRE/RELEASE minimal guarantees. However, if wanted to be used as a _real_ lock, then it would be in trouble. To this end, this patch provides the

[PATCH v2 0/1] man/set_mempolicy.2,mbind.2: add MPOL_LOCAL NUMA memory policy documentation

2016-10-09 Thread Piotr Kwapulinski
The MPOL_LOCAL mode has been implemented by Peter Zijlstra (commit: 479e2802d09f1e18a97262c4c6f8f17ae5884bd8). Add the documentation for this mode. Signed-off-by: Piotr Kwapulinski --- This version adds more details about MPOL_LOCAL mode: 1.

[PATCHv3] hwmon: Add tc654 driver

2016-10-09 Thread Chris Packham
Add support for the tc654 and tc655 fan controllers from Microchip. http://ww1.microchip.com/downloads/en/DeviceDoc/20001734C.pdf Signed-off-by: Chris Packham --- Changes in v3: - typofix in documentation - add missing value to tc654_pwm_map, re-generate based