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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-04-30 17:55:51 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-07-24 15:09:57 +0300 |
| commit | 17cc1dd4924391b54fb179d0868b89dc96f2ee80 (patch) | |
| tree | 18aada7559529c711897037d94b316a6d26cfa63 /block/blk-mq-sched.c | |
| parent | ac4ac788fdadc6b703ff3322de07dee442e08e1c (diff) | |
| download | linux-17cc1dd4924391b54fb179d0868b89dc96f2ee80.tar.xz | |
powerpc/powernv: implement opal_put_chars_atomic
The RAW console does not need writes to be atomic, so relax
opal_put_chars to be able to do partial writes, and implement an
_atomic variant which does not take a spinlock. This API is used
in xmon, so the less locking that is used, the better chance there
is that a crash can be debugged.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'block/blk-mq-sched.c')
0 files changed, 0 insertions, 0 deletions