diff -urP linux-2.5.63/arch/alpha/kernel/process.c linux-2.5.63_patched/arch/alpha/kernel/process.c --- linux-2.5.63/arch/alpha/kernel/process.c Mon Feb 24 20:05:42 2003 +++ linux-2.5.63_patched/arch/alpha/kernel/process.c Mon Feb 24 23:02:43 2003 @@ -155,10 +155,7 @@ struct halt_info args; args.mode = mode; args.restart_cmd = restart_cmd; -#ifdef CONFIG_SMP - smp_call_function(common_shutdown_1, &args, 1, 0); -#endif - common_shutdown_1(&args); + on_each_cpu(common_shutdown_1, &args, 1, 0); } void diff -urP linux-2.5.63/arch/alpha/kernel/smp.c linux-2.5.63_patched/arch/alpha/kernel/smp.c --- linux-2.5.63/arch/alpha/kernel/smp.c Mon Feb 24 20:05:14 2003 +++ linux-2.5.63_patched/arch/alpha/kernel/smp.c Mon Feb 24 23:02:43 2003 @@ -899,10 +899,8 @@ smp_imb(void) { /* Must wait other processors to flush their icache before continue. */ - if (smp_call_function(ipi_imb, NULL, 1, 1)) + if (on_each_cpu(ipi_imb, NULL, 1, 1)) printk(KERN_CRIT "smp_imb: timed out\n"); - - imb(); } static void @@ -916,11 +914,9 @@ { /* Although we don't have any data to pass, we do want to synchronize with the other processors. */ - if (smp_call_function(ipi_flush_tlb_all, NULL, 1, 1)) { + if (on_each_cpu(ipi_flush_tlb_all, NULL, 1, 1)) { printk(KERN_CRIT "flush_tlb_all: timed out\n"); } - - tbia(); } #define asn_locked() (cpu_data[smp_processor_id()].asn_lock) @@ -938,6 +934,8 @@ void flush_tlb_mm(struct mm_struct *mm) { + preempt_disable(); + if (mm == current->active_mm) { flush_tlb_current(mm); if (atomic_read(&mm->mm_users) <= 1) { @@ -948,6 +946,7 @@ if (mm->context[cpu]) mm->context[cpu] = 0; } + preempt_enable(); return; } } @@ -955,6 +954,8 @@ if (smp_call_function(ipi_flush_tlb_mm, mm, 1, 1)) { printk(KERN_CRIT "flush_tlb_mm: timed out\n"); } + + preempt_enable(); } struct flush_tlb_page_struct { @@ -981,6 +982,8 @@ struct flush_tlb_page_struct data; struct mm_struct *mm = vma->vm_mm; + preempt_disable(); + if (mm == current->active_mm) { flush_tlb_current_page(mm, vma, addr); if (atomic_read(&mm->mm_users) <= 1) { @@ -991,6 +994,7 @@ if (mm->context[cpu]) mm->context[cpu] = 0; } + preempt_enable(); return; } } @@ -1002,6 +1006,8 @@ if (smp_call_function(ipi_flush_tlb_page, &data, 1, 1)) { printk(KERN_CRIT "flush_tlb_page: timed out\n"); } + + preempt_enable(); } void @@ -1030,6 +1036,8 @@ if ((vma->vm_flags & VM_EXEC) == 0) return; + preempt_disable(); + if (mm == current->active_mm) { __load_new_mm_context(mm); if (atomic_read(&mm->mm_users) <= 1) { @@ -1040,6 +1048,7 @@ if (mm->context[cpu]) mm->context[cpu] = 0; } + preempt_enable(); return; } } @@ -1047,6 +1056,8 @@ if (smp_call_function(ipi_flush_icache_page, mm, 1, 1)) { printk(KERN_CRIT "flush_icache_page: timed out\n"); } + + preempt_enable(); } #ifdef CONFIG_DEBUG_SPINLOCK diff -urP linux-2.5.63/arch/i386/kernel/io_apic.c linux-2.5.63_patched/arch/i386/kernel/io_apic.c --- linux-2.5.63/arch/i386/kernel/io_apic.c Mon Feb 24 20:05:15 2003 +++ linux-2.5.63_patched/arch/i386/kernel/io_apic.c Mon Feb 24 23:02:43 2003 @@ -1376,8 +1376,7 @@ void print_all_local_APICs (void) { - smp_call_function(print_local_APIC, NULL, 1, 1); - print_local_APIC(NULL); + on_each_cpu(print_local_APIC, NULL, 1, 1); } void /*__init*/ print_PIC(void) @@ -1843,8 +1842,7 @@ */ printk(KERN_INFO "activating NMI Watchdog ..."); - smp_call_function(enable_NMI_through_LVT0, NULL, 1, 1); - enable_NMI_through_LVT0(NULL); + on_each_cpu(enable_NMI_through_LVT0, NULL, 1, 1); printk(" done.\n"); } diff -urP linux-2.5.63/arch/i386/kernel/ldt.c linux-2.5.63_patched/arch/i386/kernel/ldt.c --- linux-2.5.63/arch/i386/kernel/ldt.c Mon Feb 24 20:05:38 2003 +++ linux-2.5.63_patched/arch/i386/kernel/ldt.c Mon Feb 24 23:02:43 2003 @@ -55,13 +55,13 @@ wmb(); if (reload) { + preempt_disable(); load_LDT(pc); #ifdef CONFIG_SMP - preempt_disable(); if (current->mm->cpu_vm_mask != (1 << smp_processor_id())) smp_call_function(flush_ldt, 0, 1, 1); - preempt_enable(); #endif + preempt_enable(); } if (oldsize) { if (oldsize*LDT_ENTRY_SIZE > PAGE_SIZE) diff -urP linux-2.5.63/arch/i386/kernel/microcode.c linux-2.5.63_patched/arch/i386/kernel/microcode.c --- linux-2.5.63/arch/i386/kernel/microcode.c Mon Feb 24 20:05:12 2003 +++ linux-2.5.63_patched/arch/i386/kernel/microcode.c Mon Feb 24 23:02:32 2003 @@ -183,11 +183,10 @@ int i, error = 0, err; struct microcode *m; - if (smp_call_function(do_update_one, NULL, 1, 1) != 0) { + if (on_each_cpu(do_update_one, NULL, 1, 1) != 0) { printk(KERN_ERR "microcode: IPI timeout, giving up\n"); return -EIO; } - do_update_one(NULL); for (i=0; iactive_mm && atomic_read(&mm->mm_users) == 1)) + { + local_finish_flush_tlb_mm(mm); return; + } /* * We could optimize this further by using mm->cpu_vm_mask to track which CPUs @@ -226,7 +226,7 @@ * anyhow, and once a CPU is interrupted, the cost of local_flush_tlb_all() is * rather trivial. */ - smp_call_function((void (*)(void *))local_finish_flush_tlb_mm, mm, 1, 1); + on_each_cpu((void (*)(void *))local_finish_flush_tlb_mm, mm, 1, 1); } /* diff -urP linux-2.5.63/arch/mips64/kernel/smp.c linux-2.5.63_patched/arch/mips64/kernel/smp.c --- linux-2.5.63/arch/mips64/kernel/smp.c Mon Feb 24 20:05:38 2003 +++ linux-2.5.63_patched/arch/mips64/kernel/smp.c Mon Feb 24 23:02:43 2003 @@ -195,8 +195,7 @@ void flush_tlb_all(void) { - smp_call_function(flush_tlb_all_ipi, 0, 1, 1); - _flush_tlb_all(); + on_each_cpu(flush_tlb_all_ipi, 0, 1, 1); } static void flush_tlb_mm_ipi(void *mm) @@ -219,6 +218,8 @@ void flush_tlb_mm(struct mm_struct *mm) { + preempt_disable(); + if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) { smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1, 1); } else { @@ -228,6 +229,8 @@ CPU_CONTEXT(i, mm) = 0; } _flush_tlb_mm(mm); + + preempt_enable(); } struct flush_tlb_data { @@ -246,6 +249,8 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { + preempt_disable(); + if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) { struct flush_tlb_data fd; @@ -260,6 +265,8 @@ CPU_CONTEXT(i, mm) = 0; } _flush_tlb_range(mm, start, end); + + preempt_enable(); } static void flush_tlb_page_ipi(void *info) @@ -271,6 +278,8 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page) { + preempt_disable(); + if ((atomic_read(&vma->vm_mm->mm_users) != 1) || (current->mm != vma->vm_mm)) { struct flush_tlb_data fd; @@ -284,5 +293,7 @@ CPU_CONTEXT(i, vma->vm_mm) = 0; } _flush_tlb_page(vma, page); + + preempt_enable(); } diff -urP linux-2.5.63/arch/parisc/kernel/cache.c linux-2.5.63_patched/arch/parisc/kernel/cache.c --- linux-2.5.63/arch/parisc/kernel/cache.c Mon Feb 24 20:05:29 2003 +++ linux-2.5.63_patched/arch/parisc/kernel/cache.c Mon Feb 24 23:02:43 2003 @@ -39,8 +39,7 @@ void flush_data_cache(void) { - smp_call_function((void (*)(void *))flush_data_cache_local, NULL, 1, 1); - flush_data_cache_local(); + on_each_cpu((void (*)(void *))flush_data_cache_local, NULL, 1, 1); } #endif diff -urP linux-2.5.63/arch/parisc/kernel/irq.c linux-2.5.63_patched/arch/parisc/kernel/irq.c --- linux-2.5.63/arch/parisc/kernel/irq.c Mon Feb 24 20:05:16 2003 +++ linux-2.5.63_patched/arch/parisc/kernel/irq.c Mon Feb 24 23:02:43 2003 @@ -61,20 +61,17 @@ static spinlock_t irq_lock = SPIN_LOCK_UNLOCKED; /* protect IRQ regions */ -#ifdef CONFIG_SMP static void cpu_set_eiem(void *info) { set_eiem((unsigned long) info); } -#endif static inline void disable_cpu_irq(void *unused, int irq) { unsigned long eirr_bit = EIEM_MASK(irq); cpu_eiem &= ~eirr_bit; - set_eiem(cpu_eiem); - smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1, 1); + on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1); } static void enable_cpu_irq(void *unused, int irq) @@ -83,8 +80,7 @@ mtctl(eirr_bit, 23); /* clear EIRR bit before unmasking */ cpu_eiem |= eirr_bit; - smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1, 1); - set_eiem(cpu_eiem); + on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1); } /* mask and disable are the same at the CPU level @@ -100,8 +96,7 @@ ** handle *any* unmasked pending interrupts. ** ie We don't need to check for pending interrupts here. */ - smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1, 1); - set_eiem(cpu_eiem); + on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1); } /* diff -urP linux-2.5.63/arch/parisc/kernel/smp.c linux-2.5.63_patched/arch/parisc/kernel/smp.c --- linux-2.5.63/arch/parisc/kernel/smp.c Mon Feb 24 20:06:01 2003 +++ linux-2.5.63_patched/arch/parisc/kernel/smp.c Mon Feb 24 23:02:43 2003 @@ -401,7 +401,7 @@ __setup("maxcpus=", maxcpus); /* - * Flush all other CPU's tlb and then mine. Do this with smp_call_function() + * Flush all other CPU's tlb and then mine. Do this with on_each_cpu() * as we want to ensure all TLB's flushed before proceeding. */ @@ -410,8 +410,7 @@ void smp_flush_tlb_all(void) { - smp_call_function((void (*)(void *))flush_tlb_all_local, NULL, 1, 1); - flush_tlb_all_local(); + on_each_cpu((void (*)(void *))flush_tlb_all_local, NULL, 1, 1); } diff -urP linux-2.5.63/arch/parisc/mm/init.c linux-2.5.63_patched/arch/parisc/mm/init.c --- linux-2.5.63/arch/parisc/mm/init.c Mon Feb 24 20:05:32 2003 +++ linux-2.5.63_patched/arch/parisc/mm/init.c Mon Feb 24 23:02:43 2003 @@ -974,8 +974,7 @@ do_recycle++; } spin_unlock(&sid_lock); - smp_call_function((void (*)(void *))flush_tlb_all_local, NULL, 1, 1); - flush_tlb_all_local(); + on_each_cpu((void (*)(void *))flush_tlb_all_local, NULL, 1, 1); if (do_recycle) { spin_lock(&sid_lock); recycle_sids(recycle_ndirty,recycle_dirty_array); diff -urP linux-2.5.63/arch/ppc/kernel/temp.c linux-2.5.63_patched/arch/ppc/kernel/temp.c --- linux-2.5.63/arch/ppc/kernel/temp.c Mon Feb 24 20:05:33 2003 +++ linux-2.5.63_patched/arch/ppc/kernel/temp.c Mon Feb 24 23:02:43 2003 @@ -194,10 +194,7 @@ /* schedule ourselves to be run again */ mod_timer(&tau_timer, jiffies + shrink_timer) ; -#ifdef CONFIG_SMP - smp_call_function(tau_timeout, NULL, 1, 0); -#endif - tau_timeout(NULL); + on_each_cpu(tau_timeout, NULL, 1, 0); } /* @@ -239,10 +236,7 @@ tau_timer.expires = jiffies + shrink_timer; add_timer(&tau_timer); -#ifdef CONFIG_SMP - smp_call_function(TAU_init_smp, NULL, 1, 0); -#endif - TAU_init_smp(NULL); + on_each_cpu(TAU_init_smp, NULL, 1, 0); printk("Thermal assist unit "); #ifdef CONFIG_TAU_INT diff -urP linux-2.5.63/arch/s390/kernel/smp.c linux-2.5.63_patched/arch/s390/kernel/smp.c --- linux-2.5.63/arch/s390/kernel/smp.c Mon Feb 24 20:05:05 2003 +++ linux-2.5.63_patched/arch/s390/kernel/smp.c Mon Feb 24 23:02:43 2003 @@ -228,8 +228,7 @@ void machine_restart_smp(char * __unused) { cpu_restart_map = cpu_online_map; - smp_call_function(do_machine_restart, NULL, 0, 0); - do_machine_restart(NULL); + on_each_cpu(do_machine_restart, NULL, 0, 0); } static void do_machine_halt(void * __unused) @@ -247,8 +246,7 @@ void machine_halt_smp(void) { - smp_call_function(do_machine_halt, NULL, 0, 0); - do_machine_halt(NULL); + on_each_cpu(do_machine_halt, NULL, 0, 0); } static void do_machine_power_off(void * __unused) @@ -266,8 +264,7 @@ void machine_power_off_smp(void) { - smp_call_function(do_machine_power_off, NULL, 0, 0); - do_machine_power_off(NULL); + on_each_cpu(do_machine_power_off, NULL, 0, 0); } /* @@ -339,8 +336,7 @@ void smp_ptlb_all(void) { - smp_call_function(smp_ptlb_callback, NULL, 0, 1); - local_flush_tlb(); + on_each_cpu(smp_ptlb_callback, NULL, 0, 1); } /* @@ -400,8 +396,7 @@ parms.end_ctl = cr; parms.orvals[cr] = 1 << bit; parms.andvals[cr] = 0xFFFFFFFF; - smp_call_function(smp_ctl_bit_callback, &parms, 0, 1); - __ctl_set_bit(cr, bit); + on_each_cpu(smp_ctl_bit_callback, &parms, 0, 1); } /* @@ -414,8 +409,7 @@ parms.end_ctl = cr; parms.orvals[cr] = 0x00000000; parms.andvals[cr] = ~(1 << bit); - smp_call_function(smp_ctl_bit_callback, &parms, 0, 1); - __ctl_clear_bit(cr, bit); + on_each_cpu(smp_ctl_bit_callback, &parms, 0, 1); } /* diff -urP linux-2.5.63/arch/s390x/kernel/smp.c linux-2.5.63_patched/arch/s390x/kernel/smp.c --- linux-2.5.63/arch/s390x/kernel/smp.c Mon Feb 24 20:05:32 2003 +++ linux-2.5.63_patched/arch/s390x/kernel/smp.c Mon Feb 24 23:02:43 2003 @@ -227,8 +227,7 @@ void machine_restart_smp(char * __unused) { cpu_restart_map = cpu_online_map; - smp_call_function(do_machine_restart, NULL, 0, 0); - do_machine_restart(NULL); + on_each_cpu(do_machine_restart, NULL, 0, 0); } static void do_machine_halt(void * __unused) @@ -246,8 +245,7 @@ void machine_halt_smp(void) { - smp_call_function(do_machine_halt, NULL, 0, 0); - do_machine_halt(NULL); + on_each_cpu(do_machine_halt, NULL, 0, 0); } static void do_machine_power_off(void * __unused) @@ -265,8 +263,7 @@ void machine_power_off_smp(void) { - smp_call_function(do_machine_power_off, NULL, 0, 0); - do_machine_power_off(NULL); + on_each_cpu(do_machine_power_off, NULL, 0, 0); } /* @@ -383,8 +380,7 @@ parms.end_ctl = cr; parms.orvals[cr] = 1 << bit; parms.andvals[cr] = -1L; - smp_call_function(smp_ctl_bit_callback, &parms, 0, 1); - __ctl_set_bit(cr, bit); + on_each_cpu(smp_ctl_bit_callback, &parms, 0, 1); } /* @@ -397,8 +393,7 @@ parms.end_ctl = cr; parms.orvals[cr] = 0; parms.andvals[cr] = ~(1L << bit); - smp_call_function(smp_ctl_bit_callback, &parms, 0, 1); - __ctl_clear_bit(cr, bit); + on_each_cpu(smp_ctl_bit_callback, &parms, 0, 1); } diff -urP linux-2.5.63/arch/x86_64/kernel/bluesmoke.c linux-2.5.63_patched/arch/x86_64/kernel/bluesmoke.c --- linux-2.5.63/arch/x86_64/kernel/bluesmoke.c Mon Feb 24 20:05:43 2003 +++ linux-2.5.63_patched/arch/x86_64/kernel/bluesmoke.c Mon Feb 24 23:02:43 2003 @@ -111,11 +111,7 @@ { u32 low, high; int i; - unsigned int *cpu = info; - BUG_ON (*cpu != smp_processor_id()); - - preempt_disable(); for (i=0; isize = mincount; wmb(); if (reload) { + preempt_disable(); load_LDT(pc); #ifdef CONFIG_SMP - preempt_disable(); if (current->mm->cpu_vm_mask != (1< PAGE_SIZE) diff -urP linux-2.5.63/arch/x86_64/kernel/smp.c linux-2.5.63_patched/arch/x86_64/kernel/smp.c --- linux-2.5.63/arch/x86_64/kernel/smp.c Mon Feb 24 20:05:13 2003 +++ linux-2.5.63_patched/arch/x86_64/kernel/smp.c Mon Feb 24 23:02:43 2003 @@ -328,7 +328,7 @@ preempt_enable(); } -static inline void do_flush_tlb_all_local(void) +static void do_flush_tlb_all(void* info) { unsigned long cpu = smp_processor_id(); @@ -337,18 +337,9 @@ leave_mm(cpu); } -static void flush_tlb_all_ipi(void* info) -{ - do_flush_tlb_all_local(); -} - void flush_tlb_all(void) { - preempt_disable(); - smp_call_function (flush_tlb_all_ipi,0,1,1); - - do_flush_tlb_all_local(); - preempt_enable(); + on_each_cpu(do_flush_tlb_all, 0, 1, 1); } void smp_kdb_stop(void) diff -urP linux-2.5.63/arch/x86_64/mm/pageattr.c linux-2.5.63_patched/arch/x86_64/mm/pageattr.c --- linux-2.5.63/arch/x86_64/mm/pageattr.c Mon Feb 24 20:05:32 2003 +++ linux-2.5.63_patched/arch/x86_64/mm/pageattr.c Mon Feb 24 23:02:43 2003 @@ -123,12 +123,7 @@ static inline void flush_map(unsigned long address) { - preempt_disable(); -#ifdef CONFIG_SMP - smp_call_function(flush_kernel_map, (void *)address, 1, 1); -#endif - flush_kernel_map((void *)address); - preempt_enable(); + on_each_cpu(flush_kernel_map, (void *)address, 1, 1); } struct deferred_page { diff -urP linux-2.5.63/drivers/char/agp/agp.h linux-2.5.63_patched/drivers/char/agp/agp.h --- linux-2.5.63/drivers/char/agp/agp.h Mon Feb 24 20:05:29 2003 +++ linux-2.5.63_patched/drivers/char/agp/agp.h Mon Feb 24 23:02:43 2003 @@ -42,9 +42,8 @@ static void __attribute__((unused)) global_cache_flush(void) { - if (smp_call_function(ipi_handler, NULL, 1, 1) != 0) + if (on_each_cpu(ipi_handler, NULL, 1, 1) != 0) panic(PFX "timed out waiting for the other CPUs!\n"); - flush_agp_cache(); } #else static inline void global_cache_flush(void) diff -urP linux-2.5.63/drivers/s390/char/sclp.c linux-2.5.63_patched/drivers/s390/char/sclp.c --- linux-2.5.63/drivers/s390/char/sclp.c Mon Feb 24 20:05:35 2003 +++ linux-2.5.63_patched/drivers/s390/char/sclp.c Mon Feb 24 23:02:43 2003 @@ -481,8 +481,7 @@ do_machine_quiesce(void) { cpu_quiesce_map = cpu_online_map; - smp_call_function(do_load_quiesce_psw, NULL, 0, 0); - do_load_quiesce_psw(NULL); + on_each_cpu(do_load_quiesce_psw, NULL, 0, 0); } #else static void diff -urP linux-2.5.63/fs/buffer.c linux-2.5.63_patched/fs/buffer.c --- linux-2.5.63/fs/buffer.c Mon Feb 24 20:05:34 2003 +++ linux-2.5.63_patched/fs/buffer.c Mon Feb 24 23:02:43 2003 @@ -1403,10 +1403,7 @@ static void invalidate_bh_lrus(void) { - preempt_disable(); - invalidate_bh_lru(NULL); - smp_call_function(invalidate_bh_lru, NULL, 1, 1); - preempt_enable(); + on_each_cpu(invalidate_bh_lru, NULL, 1, 1); } void set_bh_page(struct buffer_head *bh, diff -urP linux-2.5.63/include/asm-parisc/cacheflush.h linux-2.5.63_patched/include/asm-parisc/cacheflush.h --- linux-2.5.63/include/asm-parisc/cacheflush.h Mon Feb 24 20:05:47 2003 +++ linux-2.5.63_patched/include/asm-parisc/cacheflush.h Mon Feb 24 23:02:43 2003 @@ -25,16 +25,10 @@ extern void flush_cache_all_local(void); -#ifdef CONFIG_SMP static inline void flush_cache_all(void) { - smp_call_function((void (*)(void *))flush_cache_all_local, NULL, 1, 1); - flush_cache_all_local(); + on_each_cpu((void (*)(void *))flush_cache_all_local, NULL, 1, 1); } -#else -#define flush_cache_all flush_cache_all_local -#endif - /* The following value needs to be tuned and probably scaled with the * cache size. diff -urP linux-2.5.63/include/linux/smp.h linux-2.5.63_patched/include/linux/smp.h --- linux-2.5.63/include/linux/smp.h Mon Feb 24 20:05:33 2003 +++ linux-2.5.63_patched/include/linux/smp.h Mon Feb 24 23:02:44 2003 @@ -10,9 +10,10 @@ #ifdef CONFIG_SMP +#include #include #include -#include +#include #include #include @@ -54,6 +55,25 @@ int retry, int wait); /* + * Call a function on all processors + */ +static inline int on_each_cpu(void (*func) (void *info), void *info, + int retry, int wait) +{ + int ret = 0; + + preempt_disable(); + + if(num_online_cpus() > 1) + ret = smp_call_function(func, info, retry, wait); + func(info); + + preempt_enable(); + + return ret; +} + +/* * True once the per process idle is forked */ extern int smp_threads_ready; @@ -96,6 +116,7 @@ #define hard_smp_processor_id() 0 #define smp_threads_ready 1 #define smp_call_function(func,info,retry,wait) ({ 0; }) +#define on_each_cpu(func,info,retry,wait) ({ func(info); 0; }) static inline void smp_send_reschedule(int cpu) { } static inline void smp_send_reschedule_all(void) { } #define cpu_online_map 1 diff -urP linux-2.5.63/mm/slab.c linux-2.5.63_patched/mm/slab.c --- linux-2.5.63/mm/slab.c Mon Feb 24 20:05:39 2003 +++ linux-2.5.63_patched/mm/slab.c Mon Feb 24 23:02:44 2003 @@ -1116,12 +1116,16 @@ static void smp_call_function_all_cpus(void (*func) (void *arg), void *arg) { check_irq_on(); + preempt_disable(); + local_irq_disable(); func(arg); local_irq_enable(); if (smp_call_function(func, arg, 1, 1)) BUG(); + + preempt_enable(); } static void free_block (kmem_cache_t* cachep, void** objpp, int len);