diff options
Diffstat (limited to 'debian/patches-rt/0032-sched-Add-support-for-lazy-preemption.patch')
| -rw-r--r-- | debian/patches-rt/0032-sched-Add-support-for-lazy-preemption.patch | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/debian/patches-rt/0032-sched-Add-support-for-lazy-preemption.patch b/debian/patches-rt/0032-sched-Add-support-for-lazy-preemption.patch index 54c21bbb9..59d1a3cba 100644 --- a/debian/patches-rt/0032-sched-Add-support-for-lazy-preemption.patch +++ b/debian/patches-rt/0032-sched-Add-support-for-lazy-preemption.patch @@ -1,8 +1,8 @@ -From 87194c420f8ef3b1a8b9b63ae640180e2414e8c4 Mon Sep 17 00:00:00 2001 +From 9ee683f4f85373204d8fd50d4ac8f6ab8154cf4b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 26 Oct 2012 18:50:54 +0100 -Subject: [PATCH 32/62] sched: Add support for lazy preemption -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.1/older/patches-6.1.69-rt21.tar.xz +Subject: [PATCH 32/64] sched: Add support for lazy preemption +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.1/older/patches-6.1.82-rt27.tar.xz It has become an obsession to mitigate the determinism vs. throughput loss of RT. Looking at the mainline semantics of preemption points @@ -69,10 +69,10 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 12 files changed, 260 insertions(+), 35 deletions(-) diff --git a/include/linux/preempt.h b/include/linux/preempt.h -index 8cfcc5d45451..9fc4c4bb320f 100644 +index 9aa6358a1a16..e9f0d08733f4 100644 --- a/include/linux/preempt.h +++ b/include/linux/preempt.h -@@ -207,6 +207,20 @@ extern void preempt_count_sub(int val); +@@ -208,6 +208,20 @@ extern void preempt_count_sub(int val); #define preempt_count_inc() preempt_count_add(1) #define preempt_count_dec() preempt_count_sub(1) @@ -93,7 +93,7 @@ index 8cfcc5d45451..9fc4c4bb320f 100644 #ifdef CONFIG_PREEMPT_COUNT #define preempt_disable() \ -@@ -215,6 +229,12 @@ do { \ +@@ -216,6 +230,12 @@ do { \ barrier(); \ } while (0) @@ -106,7 +106,7 @@ index 8cfcc5d45451..9fc4c4bb320f 100644 #define sched_preempt_enable_no_resched() \ do { \ barrier(); \ -@@ -246,6 +266,18 @@ do { \ +@@ -247,6 +267,18 @@ do { \ __preempt_schedule(); \ } while (0) @@ -125,7 +125,7 @@ index 8cfcc5d45451..9fc4c4bb320f 100644 #else /* !CONFIG_PREEMPTION */ #define preempt_enable() \ do { \ -@@ -253,6 +285,12 @@ do { \ +@@ -254,6 +286,12 @@ do { \ preempt_count_dec(); \ } while (0) @@ -138,7 +138,7 @@ index 8cfcc5d45451..9fc4c4bb320f 100644 #define preempt_enable_notrace() \ do { \ barrier(); \ -@@ -293,6 +331,9 @@ do { \ +@@ -294,6 +332,9 @@ do { \ #define preempt_enable_notrace() barrier() #define preemptible() 0 @@ -148,7 +148,7 @@ index 8cfcc5d45451..9fc4c4bb320f 100644 #endif /* CONFIG_PREEMPT_COUNT */ #ifdef MODULE -@@ -311,7 +352,7 @@ do { \ +@@ -312,7 +353,7 @@ do { \ } while (0) #define preempt_fold_need_resched() \ do { \ @@ -157,7 +157,7 @@ index 8cfcc5d45451..9fc4c4bb320f 100644 set_preempt_need_resched(); \ } while (0) -@@ -427,8 +468,15 @@ extern void migrate_enable(void); +@@ -428,8 +469,15 @@ extern void migrate_enable(void); #else @@ -557,10 +557,10 @@ index b62d53d7c264..f2577f511a41 100644 extern void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime); extern bool sched_rt_bandwidth_account(struct rt_rq *rt_rq); diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c -index 87eca95b57fb..462564d652be 100644 +index f667d6bdddda..3bc4f34507f0 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c -@@ -2616,11 +2616,19 @@ unsigned int tracing_gen_ctx_irq_test(unsigned int irqs_status) +@@ -2644,11 +2644,19 @@ unsigned int tracing_gen_ctx_irq_test(unsigned int irqs_status) if (softirq_count() >> (SOFTIRQ_SHIFT + 1)) trace_flags |= TRACE_FLAG_BH_OFF; @@ -582,7 +582,7 @@ index 87eca95b57fb..462564d652be 100644 (min_t(unsigned int, migration_disable_value(), 0xf)) << 4; } -@@ -4212,15 +4220,17 @@ unsigned long trace_total_entries(struct trace_array *tr) +@@ -4240,15 +4248,17 @@ unsigned long trace_total_entries(struct trace_array *tr) static void print_lat_help_header(struct seq_file *m) { @@ -609,7 +609,7 @@ index 87eca95b57fb..462564d652be 100644 } static void print_event_info(struct array_buffer *buf, struct seq_file *m) -@@ -4254,14 +4264,16 @@ static void print_func_help_header_irq(struct array_buffer *buf, struct seq_file +@@ -4282,14 +4292,16 @@ static void print_func_help_header_irq(struct array_buffer *buf, struct seq_file print_event_info(buf, m); @@ -647,7 +647,7 @@ index a6d2f99f847d..493c3f9cf01a 100644 return ret; } diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c -index 5cd4fb656306..3c227e2843ae 100644 +index bf1965b18099..133f15d3b886 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -442,6 +442,7 @@ int trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry) @@ -710,5 +710,5 @@ index 5cd4fb656306..3c227e2843ae 100644 trace_seq_printf(s, "%x", entry->preempt_count >> 4); else -- -2.43.0 +2.44.0 |