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| author | Johan Hovold <johan@kernel.org> | 2020-01-30 13:06:58 +0300 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2020-02-10 12:37:11 +0300 |
| commit | 32553441569482e36e65371edb84494bcec53c03 (patch) | |
| tree | 193e5d5e115f4b49f514feb5aa4565e692ac1b4d /lib/mpi/mpiutil.c | |
| parent | bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9 (diff) | |
| download | linux-32553441569482e36e65371edb84494bcec53c03.tar.xz | |
USB: serial: relax unthrottle memory barrier
Commit a8d78d9f3856 ("USB: serial: clean up throttle handling")
converted the throttle handling to use atomic bitops. This means that we
can relax the smp_mb() in unthrottle() to smp_mb__after_atomic(), which
for example is a no-op on architectures like x86 that provide fully
ordered atomics.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions