From: Thomas Gleixner Date: Wed, 13 Sep 2017 21:29:26 +0000 (+0200) Subject: x86/vector: Rename used_vectors to system_vectors X-Git-Tag: v4.15~455^2~38 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=7854f82293e99f6bb3df793a2f579db4670ba71b;p=mirror_ubuntu-bionic-kernel.git x86/vector: Rename used_vectors to system_vectors used_vectors is a nisnomer as it only has the system vectors which are excluded from the regular vector allocation marked. It's not what the name suggests storage for the actually used vectors. Signed-off-by: Thomas Gleixner Tested-by: Juergen Gross Tested-by: Yu Chen Acked-by: Juergen Gross Cc: Boris Ostrovsky Cc: Tony Luck Cc: Marc Zyngier Cc: Alok Kataria Cc: Joerg Roedel Cc: "Rafael J. Wysocki" Cc: Steven Rostedt Cc: Christoph Hellwig Cc: Peter Zijlstra Cc: Borislav Petkov Cc: Paolo Bonzini Cc: Rui Zhang Cc: "K. Y. Srinivasan" Cc: Arjan van de Ven Cc: Dan Williams Cc: Len Brown Link: https://lkml.kernel.org/r/20170913213154.150209009@linutronix.de --- diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h index 9d0e13738ed3..c474bf4971d9 100644 --- a/arch/x86/include/asm/desc.h +++ b/arch/x86/include/asm/desc.h @@ -392,7 +392,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit) void update_intr_gate(unsigned int n, const void *addr); void alloc_intr_gate(unsigned int n, const void *addr); -extern unsigned long used_vectors[]; +extern unsigned long system_vectors[]; #ifdef CONFIG_X86_64 DECLARE_PER_CPU(u32, debug_idt_ctr); diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index b6b963e42028..67d20ee60e33 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -175,7 +175,7 @@ next: if (unlikely(current_vector == vector)) goto next_cpu; - if (test_bit(vector, used_vectors)) + if (test_bit(vector, system_vectors)) goto next; for_each_cpu(new_cpu, vector_searchmask) { diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index 6107ee1cb8d5..723fa9782186 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -225,7 +225,7 @@ idt_setup_from_table(gate_desc *idt, const struct idt_data *t, int size, bool sy idt_init_desc(&desc, t); write_idt_entry(idt, t->vector, &desc); if (sys) - set_bit(t->vector, used_vectors); + set_bit(t->vector, system_vectors); } } @@ -313,14 +313,14 @@ void __init idt_setup_apic_and_irq_gates(void) idt_setup_from_table(idt_table, apic_idts, ARRAY_SIZE(apic_idts), true); - for_each_clear_bit_from(i, used_vectors, FIRST_SYSTEM_VECTOR) { + for_each_clear_bit_from(i, system_vectors, FIRST_SYSTEM_VECTOR) { entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR); set_intr_gate(i, entry); } - for_each_clear_bit_from(i, used_vectors, NR_VECTORS) { + for_each_clear_bit_from(i, system_vectors, NR_VECTORS) { #ifdef CONFIG_X86_LOCAL_APIC - set_bit(i, used_vectors); + set_bit(i, system_vectors); set_intr_gate(i, spurious_interrupt); #else entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR); @@ -358,7 +358,7 @@ void idt_invalidate(void *addr) void __init update_intr_gate(unsigned int n, const void *addr) { - if (WARN_ON_ONCE(!test_bit(n, used_vectors))) + if (WARN_ON_ONCE(!test_bit(n, system_vectors))) return; set_intr_gate(n, addr); } @@ -366,6 +366,6 @@ void __init update_intr_gate(unsigned int n, const void *addr) void alloc_intr_gate(unsigned int n, const void *addr) { BUG_ON(n < FIRST_SYSTEM_VECTOR); - if (!test_and_set_bit(n, used_vectors)) + if (!test_and_set_bit(n, system_vectors)) set_intr_gate(n, addr); } diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 52089c043160..188990c3a514 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -134,7 +134,7 @@ int arch_show_interrupts(struct seq_file *p, int prec) seq_puts(p, " Machine check polls\n"); #endif #if IS_ENABLED(CONFIG_HYPERV) || defined(CONFIG_XEN) - if (test_bit(HYPERVISOR_CALLBACK_VECTOR, used_vectors)) { + if (test_bit(HYPERVISOR_CALLBACK_VECTOR, system_vectors)) { seq_printf(p, "%*s: ", prec, "HYP"); for_each_online_cpu(j) seq_printf(p, "%10u ", @@ -416,7 +416,7 @@ int check_irq_vectors_for_cpu_disable(void) */ for (vector = FIRST_EXTERNAL_VECTOR; vector < FIRST_SYSTEM_VECTOR; vector++) { - if (!test_bit(vector, used_vectors) && + if (!test_bit(vector, system_vectors) && IS_ERR_OR_NULL(per_cpu(vector_irq, cpu)[vector])) { if (++count == this_count) return 0; diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 34ea3651362e..321240f712e1 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -71,7 +71,7 @@ #include #endif -DECLARE_BITMAP(used_vectors, NR_VECTORS); +DECLARE_BITMAP(system_vectors, NR_VECTORS); static inline void cond_local_irq_enable(struct pt_regs *regs) {