diff options
Diffstat (limited to 'debian/patches-rt/0136-tasklets-Replace-spin-wait-in-tasklet_unlock_wait.patch')
| -rw-r--r-- | debian/patches-rt/0136-tasklets-Replace-spin-wait-in-tasklet_unlock_wait.patch | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/debian/patches-rt/0136-tasklets-Replace-spin-wait-in-tasklet_unlock_wait.patch b/debian/patches-rt/0136-tasklets-Replace-spin-wait-in-tasklet_unlock_wait.patch index c244c4010..06678b89f 100644 --- a/debian/patches-rt/0136-tasklets-Replace-spin-wait-in-tasklet_unlock_wait.patch +++ b/debian/patches-rt/0136-tasklets-Replace-spin-wait-in-tasklet_unlock_wait.patch @@ -1,8 +1,8 @@ -From 1e2be8ee6d91630326a3a3bc32925205b41d73a5 Mon Sep 17 00:00:00 2001 +From f90cb17ba85876d41e375928685a9190586dbd65 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra <peterz@infradead.org> Date: Tue, 9 Mar 2021 09:42:08 +0100 Subject: [PATCH 136/323] tasklets: Replace spin wait in tasklet_unlock_wait() -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.215-rt107.tar.xz tasklet_unlock_wait() spin waits for TASKLET_STATE_RUN to be cleared. This is wasting CPU cycles in a tight loop which is especially painful in a @@ -26,7 +26,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> 2 files changed, 20 insertions(+), 11 deletions(-) diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h -index fe085c46f210..c4fafbfa28a6 100644 +index fe085c46f2107..c4fafbfa28a6f 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -664,17 +664,8 @@ static inline int tasklet_trylock(struct tasklet_struct *t) @@ -50,7 +50,7 @@ index fe085c46f210..c4fafbfa28a6 100644 /* * Do not use in new code. Waiting for tasklets from atomic contexts is diff --git a/kernel/softirq.c b/kernel/softirq.c -index d5bfd5e661fc..06bca024ce45 100644 +index d5bfd5e661fcd..06bca024ce45b 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -25,6 +25,7 @@ @@ -86,5 +86,5 @@ index d5bfd5e661fc..06bca024ce45 100644 { int cpu; -- -2.43.0 +2.44.0 |