[RFC PATCH 5/5] treewide: Rename and trace arch-definitions of smp_send_reschedule()
From: Valentin Schneider <vschneid@redhat.com>
Date: 2022-10-07 15:47:01
Also in:
linux-alpha, linux-arm-kernel, linux-mips, linux-riscv, linux-s390, linux-sh, lkml, loongarch, sparclinux
Subsystem:
alpha port, arm port, arm64 port (aarch64 architecture), c-sky architecture, linux for powerpc (32-bit and 64-bit), loongarch, mips, openrisc architecture, parisc architecture, qualcomm hexagon architecture, risc-v architecture, s390 architecture, sparc + ultrasparc (sparc/sparc64), superh, synopsys arc architecture, tensilica xtensa port (xtensa), the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Richard Henderson, Matt Turner, Magnus Lindholm, Russell King, Catalin Marinas, Will Deacon, Guo Ren, Madhavan Srinivasan, Michael Ellerman, Huacai Chen, Thomas Bogendoerfer, Jonas Bonn, Stefan Kristiansson, Stafford Horne, "James E.J. Bottomley", Helge Deller, Brian Cain, Paul Walmsley, Palmer Dabbelt, Albert Ou, Heiko Carstens, Vasily Gorbik, Alexander Gordeev, "David S. Miller", Andreas Larsson, Yoshinori Sato, Rich Felker, John Paul Adrian Glaubitz, Vineet Gupta, Chris Zankel, Max Filippov, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
To be able to trace invocations of smp_send_reschedule(), rename the arch-specific definitions of it to arch_smp_send_reschedule() and wrap it into an smp_send_reschedule() that contains a tracepoint. Signed-off-by: Valentin Schneider <vschneid@redhat.com> --- arch/alpha/kernel/smp.c | 2 +- arch/arc/kernel/smp.c | 2 +- arch/arm/kernel/smp.c | 2 +- arch/arm64/kernel/smp.c | 2 +- arch/csky/kernel/smp.c | 2 +- arch/hexagon/kernel/smp.c | 2 +- arch/ia64/kernel/smp.c | 4 ++-- arch/loongarch/include/asm/smp.h | 2 +- arch/mips/include/asm/smp.h | 2 +- arch/openrisc/kernel/smp.c | 2 +- arch/parisc/kernel/smp.c | 4 ++-- arch/powerpc/kernel/smp.c | 4 ++-- arch/riscv/kernel/smp.c | 4 ++-- arch/s390/kernel/smp.c | 2 +- arch/sh/kernel/smp.c | 2 +- arch/sparc/kernel/smp_32.c | 2 +- arch/sparc/kernel/smp_64.c | 2 +- arch/x86/include/asm/smp.h | 2 +- arch/xtensa/kernel/smp.c | 2 +- include/linux/smp.h | 1 + kernel/smp.c | 6 ++++++ 21 files changed, 30 insertions(+), 23 deletions(-)
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index f4e20f75438f..38637eb9eebd 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c@@ -562,7 +562,7 @@ handle_ipi(struct pt_regs *regs) } void -smp_send_reschedule(int cpu) +arch_smp_send_reschedule(int cpu) { #ifdef DEBUG_IPI_MSG if (cpu == hard_smp_processor_id())
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index ab9e75e90f72..ae2e6a312361 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c@@ -292,7 +292,7 @@ static void ipi_send_msg(const struct cpumask *callmap, enum ipi_msg_type msg) ipi_send_msg_one(cpu, msg); } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { ipi_send_msg_one(cpu, IPI_RESCHEDULE); }
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 3b280d55c1c4..f216ac890b6f 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c@@ -745,7 +745,7 @@ void __init set_smp_ipi_range(int ipi_base, int n) ipi_setup(smp_processor_id()); } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); }
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 937d2623e06b..8d108edc4a89 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c@@ -976,7 +976,7 @@ void __init set_smp_ipi_range(int ipi_base, int n) ipi_setup(smp_processor_id()); } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); }
diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c
index 4b605aa2e1d6..fd7f81be16dd 100644
--- a/arch/csky/kernel/smp.c
+++ b/arch/csky/kernel/smp.c@@ -140,7 +140,7 @@ void smp_send_stop(void) on_each_cpu(ipi_stop, NULL, 1); } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE); }
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 4ba93e59370c..4e8bee25b8c6 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c@@ -217,7 +217,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) } } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { send_ipi(cpumask_of(cpu), IPI_RESCHEDULE); }
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index e2cc59db86bc..ea4f009a232b 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c@@ -220,11 +220,11 @@ kdump_smp_send_init(void) * Called with preemption disabled. */ void -smp_send_reschedule (int cpu) +arch_smp_send_reschedule (int cpu) { ia64_send_ipi(cpu, IA64_IPI_RESCHEDULE, IA64_IPI_DM_INT, 0); } -EXPORT_SYMBOL_GPL(smp_send_reschedule); +EXPORT_SYMBOL_GPL(arch_smp_send_reschedule); /* * Called with preemption disabled.
diff --git a/arch/loongarch/include/asm/smp.h b/arch/loongarch/include/asm/smp.h
index 71189b28bfb2..3fcca134dfb1 100644
--- a/arch/loongarch/include/asm/smp.h
+++ b/arch/loongarch/include/asm/smp.h@@ -83,7 +83,7 @@ extern void show_ipi_list(struct seq_file *p, int prec); * it goes straight through and wastes no time serializing * anything. Worst case is that we lose a reschedule ... */ -static inline void smp_send_reschedule(int cpu) +static inline void arch_smp_send_reschedule(int cpu) { loongson3_send_ipi_single(cpu, SMP_RESCHEDULE); }
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 5d9ff61004ca..9806e79895d9 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h@@ -66,7 +66,7 @@ extern void calculate_cpu_foreign_map(void); * it goes straight through and wastes no time serializing * anything. Worst case is that we lose a reschedule ... */ -static inline void smp_send_reschedule(int cpu) +static inline void arch_smp_send_reschedule(int cpu) { extern const struct plat_smp_ops *mp_ops; /* private */
diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c
index e1419095a6f0..0a7a059e2dff 100644
--- a/arch/openrisc/kernel/smp.c
+++ b/arch/openrisc/kernel/smp.c@@ -173,7 +173,7 @@ void handle_IPI(unsigned int ipi_msg) } } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); }
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 7dbd92cafae3..b7fc859fa87d 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c@@ -246,8 +246,8 @@ void kgdb_roundup_cpus(void) inline void smp_send_stop(void) { send_IPI_allbutself(IPI_CPU_STOP); } -void -smp_send_reschedule(int cpu) { send_IPI_single(cpu, IPI_RESCHEDULE); } +void +arch_smp_send_reschedule(int cpu) { send_IPI_single(cpu, IPI_RESCHEDULE); } void smp_send_all_nop(void)
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 169703fead57..2d7b217392f2 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c@@ -364,12 +364,12 @@ static inline void do_message_pass(int cpu, int msg) #endif } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { if (likely(smp_ops)) do_message_pass(cpu, PPC_MSG_RESCHEDULE); } -EXPORT_SYMBOL_GPL(smp_send_reschedule); +EXPORT_SYMBOL_GPL(arch_smp_send_reschedule); void arch_send_call_function_single_ipi(int cpu) {
diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c
index 760a64518c58..213602e89a8b 100644
--- a/arch/riscv/kernel/smp.c
+++ b/arch/riscv/kernel/smp.c@@ -235,8 +235,8 @@ void smp_send_stop(void) cpumask_pr_args(cpu_online_mask)); } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { send_ipi_single(cpu, IPI_RESCHEDULE); } -EXPORT_SYMBOL_GPL(smp_send_reschedule); +EXPORT_SYMBOL_GPL(arch_smp_send_reschedule);
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 30c91d565933..9d1c36571106 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c@@ -542,7 +542,7 @@ void arch_send_call_function_single_ipi(int cpu) * it goes straight through and wastes no time serializing * anything. Worst case is that we lose a reschedule ... */ -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { pcpu_ec_call(pcpu_devices + cpu, ec_schedule); }
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 65924d9ec245..5cf35a774dc7 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c@@ -256,7 +256,7 @@ void __init smp_cpus_done(unsigned int max_cpus) (bogosum / (5000/HZ)) % 100); } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { mp_ops->send_ipi(cpu, SMP_MSG_RESCHEDULE); }
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index ad8094d955eb..87eaa7719fa2 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c@@ -120,7 +120,7 @@ void cpu_panic(void) struct linux_prom_registers smp_penguin_ctable = { 0 }; -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { /* * CPU model dependent way of implementing IPI generation targeting
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index a55295d1b924..e5964d1d8b37 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c@@ -1430,7 +1430,7 @@ static unsigned long send_cpu_poke(int cpu) return hv_err; } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { if (cpu == smp_processor_id()) { WARN_ON_ONCE(preemptible());
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index a73bced40e24..5ff5815149bd 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h@@ -99,7 +99,7 @@ static inline void play_dead(void) smp_ops.play_dead(); } -static inline void smp_send_reschedule(int cpu) +static inline void arch_smp_send_reschedule(int cpu) { smp_ops.smp_send_reschedule(cpu); }
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index 4dc109dd6214..d95907b8e4d3 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c@@ -389,7 +389,7 @@ void arch_send_call_function_single_ipi(int cpu) send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC); } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE); }
diff --git a/include/linux/smp.h b/include/linux/smp.h
index a80ab58ae3f1..a67e7aad17b9 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h@@ -125,6 +125,7 @@ extern void smp_send_stop(void); /* * sends a 'reschedule' event to another CPU: */ +extern void arch_smp_send_reschedule(int cpu); extern void smp_send_reschedule(int cpu);
diff --git a/kernel/smp.c b/kernel/smp.c
index 387735180aed..9dfe057424f8 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c@@ -166,6 +166,12 @@ static inline void send_call_function_ipi_mask(const struct cpumask *mask) arch_send_call_function_ipi_mask(mask); } +void smp_send_reschedule(int cpu) +{ + trace_ipi_send_cpu(_RET_IP_, cpu); + arch_smp_send_reschedule(cpu); +} + #ifdef CONFIG_CSD_LOCK_WAIT_DEBUG static DEFINE_STATIC_KEY_FALSE(csdlock_debug_enabled);
--
2.31.1