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| author | Soren Brinkmann <soren.brinkmann@xilinx.com> | 2015-12-26 02:43:50 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-06 22:52:09 -0800 |
| commit | f0f54a806b2df97485519a7c4ebc45feed08a306 (patch) | |
| tree | e3bc29f241716265548140ef3b6f6fed016b6537 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | e3538c37ee383228cb9f89fb9312c417f5eb3bfc (diff) | |
| download | linux-f0f54a806b2df97485519a7c4ebc45feed08a306.tar.gz linux-f0f54a806b2df97485519a7c4ebc45feed08a306.zip | |
tty: xuartps: Use spinlock to serialize HW access
Instead of disabling the IRQ, use the spin lock to serialize accesses to
the HW. This protects the driver from interference of non-IRQ callbacks
with each other and makes the driver more consistent in its
serialization method.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions