diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2019-06-28 15:33:32 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-07-02 21:39:49 +1000 |
| commit | f30a5e68f026f3214a9392391537adaa79996b24 (patch) | |
| tree | aae2e59629903f03e463e905cf59b3c2eb510288 /mm/page_alloc.c | |
| parent | d7fb34c704719d3c91455297678aa75d9da95817 (diff) | |
powerpc/tm: update comment about interrupt re-entrancy
Since the system reset interrupt began to use its own stack, and
machine check interrupts have done so for some time, r1 can be
changed without clearing MSR[RI], provided no other interrupts
(including SLB misses) are taken.
MSR[RI] does have to be cleared when using SCRATCH0, however.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'mm/page_alloc.c')
0 files changed, 0 insertions, 0 deletions