Yep, a trivial change, but a nice one.
Of course, per-cpu changes needed first. Linus?
Descriptions moved up here:
Name: get_cpu_var patch
Author: Rusty Russell
Status: Cleanup
D: This makes introduces get_cpu_var()/put_cpu_var() which gets a
D: per-cpu variable and disables preemption, and renames the (unsafe
D: under preemption) "this_cpu()" macro to __get_cpu_var(). It also
D: deletes the redundant definitions in linux/smp.h.
Name: Export __per_cpu_offset so modules can use per-cpu data.
Author: Rusty Russell
Status: Trivial
D: As per Andrew Morton's request.
Name: DECLARE_PER_CPU/DEFINE_PER_CPU patch
Author: Rusty Russell
Status: Cleanup
Depends: Misc/get-percpu.patch.gz Misc/percpu-export.patch.gz
D: This old __per_cpu_data define wasn't enough if an arch wants to
D: use the gcc __thread prefix (thread local storage), which needs to
D: go *before* the type in the definition. So we have to go for a
D: DECLARE macro, and while we're there, separate DECLARE and DEFINE,
D: as definitions of per-cpu data cannot live in modules. This also
D: means that accidental direct references to per-cpu variables will
D: be caught at compile time.
Rusty.
-- Anyone who quotes me in their sig is an idiot. -- Rusty Russell.diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/arch/ia64/kernel/perfmon.c linux-2.5.29.11839.updated/arch/ia64/kernel/perfmon.c --- linux-2.5.29.11839/arch/ia64/kernel/perfmon.c Thu Jun 20 01:28:47 2002 +++ linux-2.5.29.11839.updated/arch/ia64/kernel/perfmon.c Sat Jul 27 17:35:00 2002 @@ -1762,7 +1762,7 @@ pfm_stop(struct task_struct *task, pfm_c ia64_srlz_i(); #ifdef CONFIG_SMP - this_cpu(pfm_dcr_pp) = 0; + __get_cpu_var(pfm_dcr_pp) = 0; #else pfm_tasklist_toggle_pp(0); #endif @@ -2163,7 +2163,7 @@ pfm_start(struct task_struct *task, pfm_ if (ctx->ctx_fl_system) { #ifdef CONFIG_SMP - this_cpu(pfm_dcr_pp) = 1; + __get_cpu_var(pfm_dcr_pp) = 1; #else pfm_tasklist_toggle_pp(1); #endif @@ -2218,8 +2218,8 @@ pfm_enable(struct task_struct *task, pfm ia64_srlz_i(); #ifdef CONFIG_SMP - this_cpu(pfm_syst_wide) = 1; - this_cpu(pfm_dcr_pp) = 0; + __get_cpu_var(pfm_syst_wide) = 1; + __get_cpu_var(pfm_dcr_pp) = 0; #endif } else { /* @@ -2973,9 +2973,9 @@ perfmon_proc_info(char *page) p += sprintf(p, "CPU%d syst_wide : %d\n" "CPU%d dcr_pp : %d\n", smp_processor_id(), - this_cpu(pfm_syst_wide), + __get_cpu_var(pfm_syst_wide), smp_processor_id(), - this_cpu(pfm_dcr_pp)); + __get_cpu_var(pfm_dcr_pp)); #endif LOCK_PFS(); @@ -3045,7 +3045,7 @@ pfm_syst_wide_update_task(struct task_st /* * propagate the value of the dcr_pp bit to the psr */ - ia64_psr(regs)->pp = mode ? this_cpu(pfm_dcr_pp) : 0; + ia64_psr(regs)->pp = mode ? __get_cpu_var(pfm_dcr_pp) : 0; } #endif @@ -3539,8 +3539,8 @@ pfm_flush_regs (struct task_struct *task ia64_srlz_i(); #ifdef CONFIG_SMP - this_cpu(pfm_syst_wide) = 0; - this_cpu(pfm_dcr_pp) = 0; + __get_cpu_var(pfm_syst_wide) = 0; + __get_cpu_var(pfm_dcr_pp) = 0; #else pfm_tasklist_toggle_pp(0); #endif diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/arch/ia64/kernel/process.c linux-2.5.29.11839.updated/arch/ia64/kernel/process.c --- linux-2.5.29.11839/arch/ia64/kernel/process.c Thu May 30 10:00:47 2002 +++ linux-2.5.29.11839.updated/arch/ia64/kernel/process.c Sat Jul 27 17:35:00 2002 @@ -194,7 +194,7 @@ ia64_save_extra (struct task_struct *tas pfm_save_regs(task); # ifdef CONFIG_SMP - if (this_cpu(pfm_syst_wide)) + if (__get_cpu_var(pfm_syst_wide)) pfm_syst_wide_update_task(task, 0); # endif #endif @@ -216,7 +216,7 @@ ia64_load_extra (struct task_struct *tas pfm_load_regs(task); # ifdef CONFIG_SMP - if (this_cpu(pfm_syst_wide)) pfm_syst_wide_update_task(task, 1); + if (__get_cpu_var(pfm_syst_wide)) pfm_syst_wide_update_task(task, 1); # endif #endif diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/arch/ia64/kernel/smp.c linux-2.5.29.11839.updated/arch/ia64/kernel/smp.c --- linux-2.5.29.11839/arch/ia64/kernel/smp.c Thu Jul 25 10:13:01 2002 +++ linux-2.5.29.11839.updated/arch/ia64/kernel/smp.c Sat Jul 27 17:35:00 2002 @@ -99,7 +99,7 @@ void handle_IPI (int irq, void *dev_id, struct pt_regs *regs) { int this_cpu = smp_processor_id(); - unsigned long *pending_ipis = &this_cpu(ipi_operation); + unsigned long *pending_ipis = &__get_cpu_var(ipi_operation); unsigned long ops; /* Count this now; we may make a call that never returns. */ diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/include/asm-generic/percpu.h linux-2.5.29.11839.updated/include/asm-generic/percpu.h --- linux-2.5.29.11839/include/asm-generic/percpu.h Mon Apr 15 11:47:44 2002 +++ linux-2.5.29.11839.updated/include/asm-generic/percpu.h Sat Jul 27 17:35:00 2002 @@ -8,6 +8,6 @@ extern unsigned long __per_cpu_offset[NR /* var is in discarded region: offset to particular copy we want */ #define per_cpu(var, cpu) (*RELOC_HIDE(&var, __per_cpu_offset[cpu])) -#define this_cpu(var) per_cpu(var, smp_processor_id()) +#define __get_cpu_var(var) per_cpu(var, smp_processor_id()) #endif /* _ASM_GENERIC_PERCPU_H_ */ diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/include/asm-ia64/percpu.h linux-2.5.29.11839.updated/include/asm-ia64/percpu.h --- linux-2.5.29.11839/include/asm-ia64/percpu.h Tue Apr 23 11:39:38 2002 +++ linux-2.5.29.11839.updated/include/asm-ia64/percpu.h Sat Jul 27 17:35:00 2002 @@ -17,7 +17,7 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; #define per_cpu(var, cpu) (*(__typeof__(&(var))) ((void *) &(var) + __per_cpu_offset[cpu])) -#define this_cpu(var) (var) +#define __get_cpu_var(var) (var) #endif /* !__ASSEMBLY__ */ diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/include/asm-ia64/processor.h linux-2.5.29.11839.updated/include/asm-ia64/processor.h --- linux-2.5.29.11839/include/asm-ia64/processor.h Fri Jun 21 09:41:55 2002 +++ linux-2.5.29.11839.updated/include/asm-ia64/processor.h Sat Jul 27 17:35:00 2002 @@ -181,7 +181,7 @@ extern struct cpuinfo_ia64 { * The "local" data pointer. It points to the per-CPU data of the currently executing * CPU, much like "current" points to the per-task data of the currently executing task. */ -#define local_cpu_data (&this_cpu(cpu_info)) +#define local_cpu_data (&__get_cpu_var(cpu_info)) #define cpu_data(cpu) (&per_cpu(cpu_info, cpu)) extern void identify_cpu (struct cpuinfo_ia64 *); diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/include/asm-x86_64/percpu.h linux-2.5.29.11839.updated/include/asm-x86_64/percpu.h --- linux-2.5.29.11839/include/asm-x86_64/percpu.h Mon Jun 17 23:19:25 2002 +++ linux-2.5.29.11839.updated/include/asm-x86_64/percpu.h Sat Jul 27 17:35:00 2002 @@ -4,7 +4,7 @@ #include <asm/pda.h> /* var is in discarded region: offset to particular copy we want */ -#define this_cpu(var) (*RELOC_HIDE(&var, read_pda(cpudata_offset))) +#define __get_cpu_var(var) (*RELOC_HIDE(&var, read_pda(cpudata_offset))) #define per_cpu(var, cpu) (*RELOC_HIDE(&var, per_cpu_pda[cpu])) void setup_per_cpu_areas(void); diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/include/linux/percpu.h linux-2.5.29.11839.updated/include/linux/percpu.h --- linux-2.5.29.11839/include/linux/percpu.h Mon Jun 24 00:53:24 2002 +++ linux-2.5.29.11839.updated/include/linux/percpu.h Sat Jul 27 17:35:00 2002 @@ -8,7 +8,9 @@ #else #define __per_cpu_data #define per_cpu(var, cpu) var -#define this_cpu(var) var +#define __get_cpu_var(var) var #endif +#define get_cpu_var(var) ({ preempt_disable(); __get_cpu_var(var); }) +#define put_cpu_var(var) preempt_enable() #endif /* __LINUX_PERCPU_H */ diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/include/linux/smp.h linux-2.5.29.11839.updated/include/linux/smp.h --- linux-2.5.29.11839/include/linux/smp.h Sat Jul 27 15:24:39 2002 +++ linux-2.5.29.11839.updated/include/linux/smp.h Sat Jul 27 17:35:30 2002 @@ -96,9 +96,6 @@ static inline void smp_send_reschedule_a #define cpu_online_map 1 #define cpu_online(cpu) ({ cpu; 1; }) #define num_online_cpus() 1 -#define __per_cpu_data -#define per_cpu(var, cpu) var -#define this_cpu(var) var /* Need to know about CPUs going up/down? */ #define register_cpu_notifier(nb) 0 diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.29.11839/kernel/softirq.c linux-2.5.29.11839.updated/kernel/softirq.c --- linux-2.5.29.11839/kernel/softirq.c Sat Jul 27 16:07:05 2002 +++ linux-2.5.29.11839.updated/kernel/softirq.c Sat Jul 27 17:35:00 2002 @@ -159,8 +159,8 @@ void __tasklet_schedule(struct tasklet_s unsigned long flags; local_irq_save(flags); - t->next = this_cpu(tasklet_vec).list; - this_cpu(tasklet_vec).list = t; + t->next = __get_cpu_var(tasklet_vec).list; + __get_cpu_var(tasklet_vec).list = t; cpu_raise_softirq(smp_processor_id(), TASKLET_SOFTIRQ); local_irq_restore(flags); } @@ -170,8 +170,8 @@ void __tasklet_hi_schedule(struct taskle unsigned long flags; local_irq_save(flags); - t->next = this_cpu(tasklet_hi_vec).list; - this_cpu(tasklet_hi_vec).list = t; + t->next = __get_cpu_var(tasklet_hi_vec).list; + __get_cpu_var(tasklet_hi_vec).list = t; cpu_raise_softirq(smp_processor_id(), HI_SOFTIRQ); local_irq_restore(flags); } @@ -181,8 +181,8 @@ static void tasklet_action(struct softir struct tasklet_struct *list; local_irq_disable(); - list = this_cpu(tasklet_vec).list; - this_cpu(tasklet_vec).list = NULL; + list = __get_cpu_var(tasklet_vec).list; + __get_cpu_var(tasklet_vec).list = NULL; local_irq_enable(); while (list) { @@ -202,8 +202,8 @@ static void tasklet_action(struct softir } local_irq_disable(); - t->next = this_cpu(tasklet_vec).list; - this_cpu(tasklet_vec).list = t; + t->next = __get_cpu_var(tasklet_vec).list; + __get_cpu_var(tasklet_vec).list = t; __cpu_raise_softirq(smp_processor_id(), TASKLET_SOFTIRQ); local_irq_enable(); } @@ -214,8 +214,8 @@ static void tasklet_hi_action(struct sof struct tasklet_struct *list; local_irq_disable(); - list = this_cpu(tasklet_hi_vec).list; - this_cpu(tasklet_hi_vec).list = NULL; + list = __get_cpu_var(tasklet_hi_vec).list; + __get_cpu_var(tasklet_hi_vec).list = NULL; local_irq_enable(); while (list) { @@ -235,8 +235,8 @@ static void tasklet_hi_action(struct sof } local_irq_disable(); - t->next = this_cpu(tasklet_hi_vec).list; - this_cpu(tasklet_hi_vec).list = t; + t->next = __get_cpu_var(tasklet_hi_vec).list; + __get_cpu_var(tasklet_hi_vec).list = t; __cpu_raise_softirq(smp_processor_id(), HI_SOFTIRQ); local_irq_enable(); }
diff -urN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.25/kernel/ksyms.c working-2.5.25-percpu/kernel/ksyms.c --- linux-2.5.25/kernel/ksyms.c Sun Jul 7 02:12:24 2002 +++ working-2.5.25-percpu/kernel/ksyms.c Fri Jul 12 16:03:47 2002 @@ -50,6 +50,7 @@ #include <linux/namei.h> #include <linux/buffer_head.h> #include <linux/root_dev.h> +#include <linux/percpu.h> #include <asm/checksum.h> #if defined(CONFIG_PROC_FS) @@ -597,3 +598,6 @@ EXPORT_SYMBOL(tasklist_lock); EXPORT_SYMBOL(pidhash); +#if defined(CONFIG_SMP) && defined(__GENERIC_PER_CPU) +EXPORT_SYMBOL(__per_cpu_offset); +#endif
diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.28.23931/arch/ia64/kernel/perfmon.c linux-2.5.28.23931.updated/arch/ia64/kernel/perfmon.c --- linux-2.5.28.23931/arch/ia64/kernel/perfmon.c Thu Jul 25 11:49:11 2002 +++ linux-2.5.28.23931.updated/arch/ia64/kernel/perfmon.c Thu Jul 25 12:07:54 2002 @@ -369,8 +369,8 @@ static pmu_config_t pmu_conf; /* PMU co static pfm_session_t pfm_sessions; /* global sessions information */ static struct proc_dir_entry *perfmon_dir; /* for debug only */ static pfm_stats_t pfm_stats; -int __per_cpu_data pfm_syst_wide; -static int __per_cpu_data pfm_dcr_pp; +DEFINE_PER_CPU(int, pfm_syst_wide); +static DEFINE_PER_CPU(int, pfm_dcr_pp); /* sysctl() controls */ static pfm_sysctl_t pfm_sysctl; diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.28.23931/arch/ia64/kernel/setup.c linux-2.5.28.23931.updated/arch/ia64/kernel/setup.c --- linux-2.5.28.23931/arch/ia64/kernel/setup.c Thu May 30 10:00:47 2002 +++ linux-2.5.28.23931.updated/arch/ia64/kernel/setup.c Thu Jul 25 12:08:02 2002 @@ -58,7 +58,7 @@ extern char _end; unsigned long __per_cpu_offset[NR_CPUS]; #endif -struct cpuinfo_ia64 cpu_info __per_cpu_data; +DECLARE_PER_CPU(struct cpuinfo_ia64, cpu_info); unsigned long ia64_phys_stacked_size_p8; unsigned long ia64_cycles_per_usec; diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.28.23931/arch/ia64/kernel/smp.c linux-2.5.28.23931.updated/arch/ia64/kernel/smp.c --- linux-2.5.28.23931/arch/ia64/kernel/smp.c Thu Jul 25 11:49:11 2002 +++ linux-2.5.28.23931.updated/arch/ia64/kernel/smp.c Thu Jul 25 12:08:08 2002 @@ -80,7 +80,7 @@ static volatile struct call_data_struct #define IPI_CPU_STOP 1 /* This needs to be cacheline aligned because it is written to by *other* CPUs. */ -static __u64 ipi_operation __per_cpu_data ____cacheline_aligned; +static DECLARE_PER_CPU(__u64, ipi_operation) ____cacheline_aligned; static void stop_this_cpu (void) diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.28.23931/include/asm-generic/percpu.h linux-2.5.28.23931.updated/include/asm-generic/percpu.h --- linux-2.5.28.23931/include/asm-generic/percpu.h Thu Jul 25 11:49:11 2002 +++ linux-2.5.28.23931.updated/include/asm-generic/percpu.h Thu Jul 25 12:01:29 2002 @@ -1,13 +1,34 @@ #ifndef _ASM_GENERIC_PERCPU_H_ #define _ASM_GENERIC_PERCPU_H_ +#include <linux/compiler.h> #define __GENERIC_PER_CPU -#include <linux/compiler.h> +#ifdef CONFIG_SMP extern unsigned long __per_cpu_offset[NR_CPUS]; +/* Separate out the type, so (int[3], foo) works. */ +#ifndef MODULE +#define DEFINE_PER_CPU(type, name) \ + __attribute__((__section__(".percpu"))) __typeof__(type) name##__per_cpu +#endif + /* var is in discarded region: offset to particular copy we want */ -#define per_cpu(var, cpu) (*RELOC_HIDE(&var, __per_cpu_offset[cpu])) +#define per_cpu(var, cpu) (*RELOC_HIDE(&var##__per_cpu, __per_cpu_offset[cpu])) #define __get_cpu_var(var) per_cpu(var, smp_processor_id()) + +#else /* ! SMP */ + +/* Can't define per-cpu variables in modules. Sorry --RR */ +#ifndef MODULE +#define DEFINE_PER_CPU(type, name) \ + __typeof__(type) name##__per_cpu +#endif + +#define per_cpu(var, cpu) var##__per_cpu +#define __get_cpu_var(var) var##__per_cpu +#endif + +#define DECLARE_PER_CPU(type, name) extern __typeof__(type) name##__per_cpu #endif /* _ASM_GENERIC_PERCPU_H_ */ diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.28.23931/include/asm-ia64/percpu.h linux-2.5.28.23931.updated/include/asm-ia64/percpu.h --- linux-2.5.28.23931/include/asm-ia64/percpu.h Thu Jul 25 11:49:10 2002 +++ linux-2.5.28.23931.updated/include/asm-ia64/percpu.h Thu Jul 25 12:04:06 2002 @@ -8,7 +8,7 @@ #ifdef __ASSEMBLY__ -#define THIS_CPU(var) (var) /* use this to mark accesses to per-CPU variables... */ +#define THIS_CPU(var) (var##__per_cpu) /* use this to mark accesses to per-CPU variables... */ #else /* !__ASSEMBLY__ */ @@ -16,8 +16,14 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; -#define per_cpu(var, cpu) (*(__typeof__(&(var))) ((void *) &(var) + __per_cpu_offset[cpu])) -#define __get_cpu_var(var) (var) +#ifndef MODULE +#define DEFINE_PER_CPU(type, name) \ + __attribute__((__section__(".data.percpu"))) __typeof__(type) name##__per_cpu +#endif +#define DECLARE_PER_CPU(type, name) extern __typeof__(type) name##__per_cpu + +#define per_cpu(var, cpu) (*RELOC_HIDE(&var##__per_cpu, __per_cpu_offset[cpu])) +#define __get_cpu_var(var) (var##__per_cpu) #endif /* !__ASSEMBLY__ */ diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.28.23931/include/asm-ia64/processor.h linux-2.5.28.23931.updated/include/asm-ia64/processor.h --- linux-2.5.28.23931/include/asm-ia64/processor.h Thu Jul 25 11:49:10 2002 +++ linux-2.5.28.23931.updated/include/asm-ia64/processor.h Thu Jul 25 12:06:55 2002 @@ -134,7 +134,7 @@ struct ia64_psr { * CPU type, hardware bug flags, and per-CPU state. Frequently used * state comes earlier: */ -extern struct cpuinfo_ia64 { +struct cpuinfo_ia64 { /* irq_stat must be 64-bit aligned */ union { struct { @@ -175,7 +175,9 @@ extern struct cpuinfo_ia64 { __u64 prof_counter; __u64 prof_multiplier; #endif -} cpu_info __per_cpu_data; +}; + +DECLARE_PER_CPU(struct cpuinfo_ia64, cpu_info); /* * The "local" data pointer. It points to the per-CPU data of the currently executing diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.28.23931/include/linux/percpu.h linux-2.5.28.23931.updated/include/linux/percpu.h --- linux-2.5.28.23931/include/linux/percpu.h Thu Jul 25 11:49:10 2002 +++ linux-2.5.28.23931.updated/include/linux/percpu.h Thu Jul 25 11:49:28 2002 @@ -1,16 +1,9 @@ #ifndef __LINUX_PERCPU_H #define __LINUX_PERCPU_H -#include <linux/config.h> - -#ifdef CONFIG_SMP -#define __per_cpu_data __attribute__((section(".data.percpu"))) +#include <linux/spinlock.h> /* For preempt_disable() */ #include <asm/percpu.h> -#else -#define __per_cpu_data -#define per_cpu(var, cpu) var -#define __get_cpu_var(var) var -#endif #define get_cpu_var(var) ({ preempt_disable(); __get_cpu_var(var); }) #define put_cpu_var(var) preempt_enable() + #endif /* __LINUX_PERCPU_H */ diff -urpN -I \$.*\$ --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.5.28.23931/kernel/softirq.c linux-2.5.28.23931.updated/kernel/softirq.c --- linux-2.5.28.23931/kernel/softirq.c Thu Jul 25 11:49:11 2002 +++ linux-2.5.28.23931.updated/kernel/softirq.c Thu Jul 25 12:05:55 2002 @@ -150,8 +150,8 @@ struct tasklet_head /* Some compilers disobey section attribute on statics when not initialized -- RR */ -static struct tasklet_head tasklet_vec __per_cpu_data = { NULL }; -static struct tasklet_head tasklet_hi_vec __per_cpu_data = { NULL }; +static DEFINE_PER_CPU(struct tasklet_head, tasklet_vec) = { NULL }; +static DEFINE_PER_CPU(struct tasklet_head, tasklet_hi_vec) = { NULL }; void __tasklet_schedule(struct tasklet_struct *t) { - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/