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| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-03-19 11:35:58 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-20 13:28:39 -0400 |
| commit | 8fdc929f5727d999d11ba3763b92f6eeacc096f9 (patch) | |
| tree | 8046d7dbd13f091d31245806a2802a2f4808f4cf /tools | |
| parent | 7fa6f34081f168975af72be51715bdc6601931f7 (diff) | |
| download | linux-8fdc929f5727d999d11ba3763b92f6eeacc096f9.tar.gz linux-8fdc929f5727d999d11ba3763b92f6eeacc096f9.tar.bz2 linux-8fdc929f5727d999d11ba3763b92f6eeacc096f9.zip | |
dynticks: avoid flow_cache_flush() interrupting every core
Previously, if you did an "ifconfig down" or similar on one core, and
the kernel had CONFIG_XFRM enabled, every core would be interrupted to
check its percpu flow list for items that could be garbage collected.
With this change, we generate a mask of cores that actually have any
percpu items, and only interrupt those cores. When we are trying to
isolate a set of cpus from interrupts, this is important to do.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions