oprofile: hotplug cpu fix

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This patch addresses problems when hotplugging cpus while
profiling. Instead of allocating only online cpus, all possible cpu
buffers are allocated, which allows cpus to be onlined during
operation. If a cpu is offlined before profiling is shutdown
wq_sync_buffer checks for this condition then cancels this work and
does not sync this buffer.

Signed-off-by: Chris J Arges <arges@linux.vnet.ibm.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>

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Chris J Arges 2008-10-15 11:03:39 -05:00 • committed by Robert Richter

parent 0f019cc477

commit 4bd9b9dc97

1 changed files with 7 additions and 2 deletions

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drivers/oprofile/cpu_buffer.c

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