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| author | Pingfan Liu <kernelfans@gmail.com> | 2022-04-22 18:02:12 +0800 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2022-04-27 12:53:34 +0200 |
| commit | 6260f6427c944279f8aca108140db900699a30de (patch) | |
| tree | fd36fe1dd1204ba09ac42c14acfe821c09665fdc /tools/perf/scripts/python | |
| parent | s390: add KCSAN instrumentation to barriers and spinlocks (diff) | |
| download | linux-6260f6427c944279f8aca108140db900699a30de.tar.gz linux-6260f6427c944279f8aca108140db900699a30de.zip | |
s390/irq: utilize RCU instead of irq_lock_sparse() in show_msi_interrupt()
As demonstrated by commit 74bdf7815dfb ("genirq: Speedup
show_interrupts()"), irq_desc can be accessed safely in RCU read section.
Hence here resorting to rcu read lock to get rid of irq_lock_sparse().
Signed-off-by: Pingfan Liu <kernelfans@gmail.com>
Link: https://lore.kernel.org/r/20220422100212.22666-1-kernelfans@gmail.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions