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| author | Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> | 2017-11-28 13:39:43 -0600 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-27 20:54:57 +1100 |
| commit | 384dfd627f1ee67d028e6f14c6e9bf5a1e2a7a24 (patch) | |
| tree | 2d75e570ecca643bef1eaca852215898d134b3a5 /tools/perf/scripts/python | |
| parent | 902bdc57451c2c64aa139bbe24067f70a186db0a (diff) | |
powerpc/kernel: Block interrupts when updating TIDR
clear_thread_tidr() is called in interrupt context as a part of delayed
put of the task structure (i.e as a part of timer interrupt). To prevent
a deadlock, block interrupts when holding vas_thread_id_lock to set/
clear TIDR for a task.
Fixes: ec233ede4c86 ("powerpc: Add support for setting SPRN_TIDR")
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions