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| author |   Sven Schnelle <svens@stackframe.org> | 2021-10-09 20:24:38 +0200 |
|---|---|---|
| committer |   Helge Deller <deller@gmx.de> | 2021-10-30 23:11:01 +0200 |
| commit | 1c2fb946cdb784b2f64e12b54f1e93685167049c (patch) | |
| tree | 96611984e3ad73ebfb20c5a31472df90b9145776 | |
| parent | parisc: fix preempt_count() check in entry.S (diff) | |
| download | linux-dev-1c2fb946cdb784b2f64e12b54f1e93685167049c.tar.xz linux-dev-1c2fb946cdb784b2f64e12b54f1e93685167049c.zip | |
parisc: disable preemption in send_IPI_allbutself()
Otherwise we might not stop all other CPUs.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | arch/parisc/kernel/smp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 1405b603b91b..3413e6949c87 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -219,11 +219,13 @@ static inline void send_IPI_allbutself(enum ipi_message_type op) { int i; - + + preempt_disable(); for_each_online_cpu(i) { if (i != smp_processor_id()) send_IPI_single(i, op); } + preempt_enable(); } |