CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN (not configurable)
configname: CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN
Linux Kernel Configuration
└─>General architecture-dependent options
└─>HAVE_VIRT_CPU_ACCOUNTING_GEN
In linux kernel since version 3.13 (release Date: 2014-01-19)
With VIRT_CPU_ACCOUNTING_GEN, cputime_t becomes 64-bit.
Before enabling this option, arch code must be audited
to ensure there are no races in concurrent read/write of
cputime_t. For example, reading/writing 64-bit cputime_t on
some 32-bit arches may require multiple accesses, so proper
locking is needed to protect against concurrent accesses.
Before enabling this option, arch code must be audited
to ensure there are no races in concurrent read/write of
cputime_t. For example, reading/writing 64-bit cputime_t on
some 32-bit arches may require multiple accesses, so proper
locking is needed to protect against concurrent accesses.