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| author |   Thomas Gleixner <tglx@linutronix.de> | 2021-09-24 18:12:45 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2021-09-27 12:28:32 +0200 |
| commit | 441e90369344d229c0f04024ea5d4d51f06b137d (patch) | |
| tree | a66979eafb0fc79d3a9d393835e22aeb9ab553b9 /kernel/irq | |
| parent | genirq: Disable irqfixup/poll on PREEMPT_RT. (diff) | |
| download | linux-dev-441e90369344d229c0f04024ea5d4d51f06b137d.tar.xz linux-dev-441e90369344d229c0f04024ea5d4d51f06b137d.zip | |
x86/softirq: Disable softirq stacks on PREEMPT_RT
PREEMPT_RT preempts softirqs and the current implementation avoids
do_softirq_own_stack() and only uses __do_softirq().
Disable the unused softirqs stacks on PREEMPT_RT to safe some memory and
ensure that do_softirq_own_stack() is not used which is not expected.
[ bigeasy: commit description. ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210924161245.2357247-1-bigeasy@linutronix.de
Diffstat (limited to 'kernel/irq')
0 files changed, 0 insertions, 0 deletions