tree 575ba01f32418345f60b1b96718144e4b7c54fc3
parent f322980b74a15e08f8c70a34a5864ecdbf957251
parent 0197e41ce70511dc3b71f7fefa1a676e2b5cd60b
author David S. Miller <davem@davemloft.net> 1496781948 -0700
committer David S. Miller <davem@davemloft.net> 1496781948 -0700

Merge branch 'sparc64-context-wrap-fixes'

Pavel Tatashin says:

====================
sparc64: context wrap fixes

This patch series contains fixes for context wrap: when we are out of
context ids, and need to get a new version.

It fixes memory corruption issues which happen when more than number of
context ids (currently set to 8K) number of processes are started
simultaneously, and processes can get a wrong context.

sparc64: new context wrap:
- contains explanation of new wrap method, and also explanation of races
  that it solves
sparc64: reset mm cpumask after wrap
- explains issue of not reseting cpu mask on a wrap
====================

Signed-off-by: David S. Miller <davem@davemloft.net>