diff options
Diffstat (limited to 'debian/patches-rt/0004-tasklets-Use-spin-wait-in-tasklet_disable-temporaril.patch')
| -rw-r--r-- | debian/patches-rt/0004-tasklets-Use-spin-wait-in-tasklet_disable-temporaril.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/debian/patches-rt/0004-tasklets-Use-spin-wait-in-tasklet_disable-temporaril.patch b/debian/patches-rt/0004-tasklets-Use-spin-wait-in-tasklet_disable-temporaril.patch new file mode 100644 index 000000000..6179dd2d2 --- /dev/null +++ b/debian/patches-rt/0004-tasklets-Use-spin-wait-in-tasklet_disable-temporaril.patch @@ -0,0 +1,27 @@ +From: Thomas Gleixner <tglx@linutronix.de> +Date: Tue, 9 Mar 2021 09:42:07 +0100 +Subject: [PATCH 04/20] tasklets: Use spin wait in tasklet_disable() + temporarily +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.21-rt34.tar.xz + +To ease the transition use spin waiting in tasklet_disable() until all +usage sites from atomic context have been cleaned up. + +Signed-off-by: Thomas Gleixner <tglx@linutronix.de> +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + include/linux/interrupt.h | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/include/linux/interrupt.h ++++ b/include/linux/interrupt.h +@@ -724,7 +724,8 @@ static inline void tasklet_disable_in_at + static inline void tasklet_disable(struct tasklet_struct *t) + { + tasklet_disable_nosync(t); +- tasklet_unlock_wait(t); ++ /* Spin wait until all atomic users are converted */ ++ tasklet_unlock_spin_wait(t); + smp_mb(); + } + |