cpuacct: add a branch prediction

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cpuacct_charge() is in fast-path, and checking of !cpuacct_susys.active
always returns false after cpuacct has been initialized at system boot.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Menage <menage@google.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Li Zefan 2009-02-26 15:40:15 +08:00 • committed by Ingo Molnar

parent 4434e51564

commit c40c6f85a7

1 changed files with 1 additions and 1 deletions

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kernel/sched.c

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