Force weak per-cpu definitions
configname: CONFIG_DEBUG_FORCE_WEAK_PER_CPU
Linux Kernel Configuration
└─>Kernel hacking
└─>Compile-time checks and compiler options
└─>Force weak per-cpu definitions
In linux kernel since version 2.6.32 (release Date: 2009-12-02)
s390 and alpha require percpu variables in modules to be
defined weak to work around addressing range issue which
puts the following two restrictions on percpu variable
definitions.
1. percpu symbols must be unique whether static or not
2. percpu variables can't be defined inside a function
To ensure that generic code follows the above rules, this
option forces all percpu variables to be defined as weak.
defined weak to work around addressing range issue which
puts the following two restrictions on percpu variable
definitions.
1. percpu symbols must be unique whether static or not
2. percpu variables can't be defined inside a function
To ensure that generic code follows the above rules, this
option forces all percpu variables to be defined as weak.