diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2018-06-03 16:41:02 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2018-07-31 08:11:12 +1000 |
| commit | c2f53119b410047e5d97de2a5ec74157d2e58986 (patch) | |
| tree | 1902f04ef82f53d5061814ecee670fea0589f095 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | 58cba7c222e8c87bb6b61fcba21d1536145221b0 (diff) | |
udl-kms: use spin_lock_irq instead of spin_lock_irqsave
spin_lock_irqsave and spin_unlock_irqrestore is inteded to be called from
a context where it is unknown if interrupts are enabled or disabled (such
as interrupt handlers). From a process context, we should call
spin_lock_irq and spin_unlock_irq, that avoids the costly pushf and popf
instructions.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions