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| author |   Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-08-20 18:57:53 -0700 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-08-24 11:13:28 -0700 |
| commit | aaca49642b92c8a57d3ca5029a5a94019c7af69f (patch) | |
| tree | a86a88c11addd689a2903d21f1bb948f461c1a1d /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | Linux 2.6.36-rc2 (diff) | |
| download | linux-dev-aaca49642b92c8a57d3ca5029a5a94019c7af69f.tar.xz linux-dev-aaca49642b92c8a57d3ca5029a5a94019c7af69f.zip | |
xen: use percpu interrupts for IPIs and VIRQs
IPIs and VIRQs are inherently per-cpu event types, so treat them as such:
- use a specific percpu irq_chip implementation, and
- handle them with handle_percpu_irq
This makes the path for delivering these interrupts more efficient
(no masking/unmasking, no locks), and it avoid problems with attempts
to migrate them.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions