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| author |   Julia Cartwright <julia@ni.com> | 2017-03-21 17:43:03 -0500 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-01-27 21:12:04 +1100 |
| commit | 77720c82915a8b7797e0041af95707d7485b4a40 (patch) | |
| tree | 7157efd278a769a3691adf125fb12df89ed227a2 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | macintosh/adb: Properly mark continued kernel messages (diff) | |
| download | linux-dev-77720c82915a8b7797e0041af95707d7485b4a40.tar.xz linux-dev-77720c82915a8b7797e0041af95707d7485b4a40.zip | |
powerpc/mpc52xx_gpt: make use of raw_spinlock variants
The mpc52xx_gpt code currently implements an irq_chip for handling
interrupts; due to how irq_chip handling is done, it's necessary for
the irq_chip methods to be invoked from hardirq context, even on a a
real-time kernel. Because the spinlock_t type becomes a "sleeping"
spinlock w/ RT kernels, it is not suitable to be used with irq_chips.
A quick audit of the operations under the lock reveal that they do
only minimal, bounded work, and are therefore safe to do under a raw
spinlock.
Signed-off-by: Julia Cartwright <julia@ni.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions