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| author | Eli Cohen <eli@mellanox.com> | 2018-09-02 12:01:53 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2018-09-17 15:12:31 -0700 |
| commit | 250ae0d46d857ed61f3e0abf584901e46bd2c638 (patch) | |
| tree | 90669b3d9c209a0204386385e39825610736da24 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | c73480910e9686a5c25155cb4d418d594b678196 (diff) | |
net/mlx5: Fix read from coherent memory
Use accessor function READ_ONCE to read from coherent memory modified
by the device and read by the driver. This becomes most important in
preemptive kernels where cond_resched implementation does not have the
side effect which guaranteed the updated value.
Fixes: 269d26f47f6f ("net/mlx5: Reduce command polling interval")
Change-Id: Ie6deeb565ffaf76777b07448c7fbcce3510bbb8a
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions