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authorIngo Molnar <mingo@elte.hu>2007-11-26 21:21:49 +0100
committerIngo Molnar <mingo@elte.hu>2007-11-26 21:21:49 +0100
commit08e4570a4a393bcc241f78dfc444cb0b07995fc0 (patch)
treee151f5d5ae0e9cb361e91a08c4d0fb8a7171b8ce /kernel/acct.c
parent5e8869bb699d50be5c0733edfc71cfcd5b43e10a (diff)
sched: fix prev_stime calculation
Srivatsa Vaddagiri noticed occasionally incorrect CPU usage values in top and tracked it down to stime going below 0 in task_stime(). Negative values are possible there due to the sampled nature of stime/utime. Fix suggested by Balbir Singh. Signed-off-by: Ingo Molnar <mingo@elte.hu> Tested-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> Reviewed-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/acct.c')
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