From 68ca406930d6380b3be7ada5f15fcf85bfcbd552 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Fri, 19 Feb 2010 00:09:22 -0500 Subject: ACPI: delete the "acpi=ht" boot option acpi=ht was important in 2003 -- before ACPI was universally deployed and enabled by default in the major Linux distributions. At that time, there were a fair number of people who or chose to, or needed to, run with acpi=off, yet also wanted access to Hyper-threading. Today we find that many invocations of "acpi=ht" are accidental, and thus is it possible that it is doing more harm than good. In 2.6.34, we warn on invocation of acpi=ht. In 2.6.35, we delete the boot option. Signed-off-by: Len Brown --- arch/ia64/include/asm/acpi.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h index 21adbd7f90f8..837dc82a013e 100644 --- a/arch/ia64/include/asm/acpi.h +++ b/arch/ia64/include/asm/acpi.h @@ -94,7 +94,6 @@ ia64_acpi_release_global_lock (unsigned int *lock) #define acpi_noirq 0 /* ACPI always enabled on IA64 */ #define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */ #define acpi_strict 1 /* no ACPI spec workarounds on IA64 */ -#define acpi_ht 0 /* no HT-only mode on IA64 */ #endif #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */ static inline void disable_acpi(void) { } -- cgit v1.2.3 From 57283776b2b821ba4d592f61cad04d0293412740 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 11 Mar 2010 12:20:11 -0700 Subject: ACPI: pci_root: pass acpi_pci_root to arch-specific scan The acpi_pci_root structure contains all the individual items (acpi_device, domain, bus number) we pass to pci_acpi_scan_root(), so just pass the single acpi_pci_root pointer directly. This will make it easier to add _CBA support later. For _CBA, we need the entire downstream bus range, not just the base bus number. We have that in the acpi_pci_root structure, so passing the pointer makes it available to the arch-specific code. Signed-off-by: Bjorn Helgaas Reviewed-by: Kenji Kaneshige Signed-off-by: Len Brown --- arch/ia64/pci/pci.c | 5 ++++- arch/x86/pci/acpi.c | 5 ++++- drivers/acpi/pci_root.c | 2 +- include/acpi/acpi_drivers.h | 3 +-- 4 files changed, 10 insertions(+), 5 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 64aff520b899..aa2533ae7e9e 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -335,8 +335,11 @@ pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl) } struct pci_bus * __devinit -pci_acpi_scan_root(struct acpi_device *device, int domain, int bus) +pci_acpi_scan_root(struct acpi_pci_root *root) { + struct acpi_device *device = root->device; + int domain = root->segment; + int bus = root->secondary.start; struct pci_controller *controller; unsigned int windows = 0; struct pci_bus *pbus; diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index e31160216efb..0b7882dbe784 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -229,8 +229,11 @@ res_alloc_fail: return; } -struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum) +struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) { + struct acpi_device *device = root->device; + int domain = root->segment; + int busnum = root->secondary.start; struct pci_bus *bus; struct pci_sysdata *sd; int node; diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index bf476fea97ab..680450c905b3 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -498,7 +498,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) * PCI namespace does not get created until this call is made (and * thus the root bridge's pci_dev does not exist). */ - root->bus = pci_acpi_scan_root(device, segment, root->secondary.start); + root->bus = pci_acpi_scan_root(root); if (!root->bus) { printk(KERN_ERR PREFIX "Bus %04x:%02x not present in PCI namespace\n", diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h index 4f7b44866b76..23d78b4d088b 100644 --- a/include/acpi/acpi_drivers.h +++ b/include/acpi/acpi_drivers.h @@ -104,8 +104,7 @@ int acpi_pci_bind_root(struct acpi_device *device); /* Arch-defined function to add a bus to the system */ -struct pci_bus *pci_acpi_scan_root(struct acpi_device *device, int domain, - int bus); +struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root); void pci_acpi_crs_quirks(void); /* -------------------------------------------------------------------------- -- cgit v1.2.3 From ffdf91856c812646aa276711fa7e3ad80b00764a Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Wed, 26 May 2010 14:43:14 -0700 Subject: ia64: ptrace_attach_sync_user_rbs: avoid "task->signal != NULL" checks Preparation to make task->signal immutable, no functional changes. It doesn't matter which pointer we check under tasklist to ensure the task was not released, ->signal or ->sighand. But we are going to make ->signal refcountable, change the code to use ->sighand. Note: this code doesn't need this check and tasklist_lock at all, it should be converted to use lock_task_sighand(). And, the code under SIGNAL_STOP_STOPPED check looks wrong. Signed-off-by: Oleg Nesterov Cc: Fenghua Yu Cc: Roland McGrath Cc: Stanislaw Gruszka Cc: Tony Luck Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/kernel/ptrace.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 0dec7f702448..7c7909f9bc93 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -638,7 +638,7 @@ ptrace_attach_sync_user_rbs (struct task_struct *child) */ read_lock(&tasklist_lock); - if (child->signal) { + if (child->sighand) { spin_lock_irq(&child->sighand->siglock); if (child->state == TASK_STOPPED && !test_and_set_tsk_thread_flag(child, TIF_RESTORE_RSE)) { @@ -662,7 +662,7 @@ ptrace_attach_sync_user_rbs (struct task_struct *child) * job control stop, so that SIGCONT can be used to wake it up. */ read_lock(&tasklist_lock); - if (child->signal) { + if (child->sighand) { spin_lock_irq(&child->sighand->siglock); if (child->state == TASK_TRACED && (child->signal->flags & SIGNAL_STOP_STOPPED)) { -- cgit v1.2.3 From 8aee5c89e181fb30076febae1c8eafc0f75493ca Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Wed, 26 May 2010 14:44:15 -0700 Subject: ia64: remove unnecessary sync_single_range_* in swiotlb_dma_ops sync_single_range_for_cpu and sync_single_range_for_device hooks in swiotlb_dma_ops are unnecessary because sync_single_for_cpu and sync_single_for_device are used there. Signed-off-by: FUJITA Tomonori Cc: Tony Luck Cc: Fenghua Yu Reviewed-by: Konrad Rzeszutek Wilk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/kernel/pci-swiotlb.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c index 3095654f9ab3..d9485d952ed0 100644 --- a/arch/ia64/kernel/pci-swiotlb.c +++ b/arch/ia64/kernel/pci-swiotlb.c @@ -31,8 +31,6 @@ struct dma_map_ops swiotlb_dma_ops = { .unmap_sg = swiotlb_unmap_sg_attrs, .sync_single_for_cpu = swiotlb_sync_single_for_cpu, .sync_single_for_device = swiotlb_sync_single_for_device, - .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu, - .sync_single_range_for_device = swiotlb_sync_single_range_for_device, .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, .sync_sg_for_device = swiotlb_sync_sg_for_device, .dma_supported = swiotlb_dma_supported, -- cgit v1.2.3 From 18e98307de0d746cb0845ebf66535ce2184c25a2 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Wed, 26 May 2010 14:44:32 -0700 Subject: asm-generic: add NEED_SG_DMA_LENGTH to define sg_dma_len() There are only two ways to define sg_dma_len(); use sg->dma_length or sg->length. This patch introduces NEED_SG_DMA_LENGTH that enables architectures to choose sg->dma_length or sg->length. Signed-off-by: FUJITA Tomonori Cc: Arnd Bergmann Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Russell King Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/Kconfig | 3 +++ arch/sh/Kconfig | 3 +++ arch/sparc/Kconfig | 3 +++ arch/sparc/include/asm/scatterlist.h | 2 -- arch/x86/Kconfig | 3 +++ include/asm-generic/scatterlist.h | 13 +++++-------- 6 files changed, 17 insertions(+), 10 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 9676100b83ee..f8afdd271f3d 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -56,6 +56,9 @@ config MMU config NEED_DMA_MAP_STATE def_bool y +config NEED_SG_DMA_LENGTH + def_bool y + config SWIOTLB bool diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 0e318c905eea..c5ee4ce60b57 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -186,6 +186,9 @@ config DMA_NONCOHERENT config NEED_DMA_MAP_STATE def_bool DMA_NONCOHERENT +config NEED_SG_DMA_LENGTH + def_bool y + source "init/Kconfig" source "kernel/Kconfig.freezer" diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index d6781ce687e2..6f1470baa314 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -133,6 +133,9 @@ config ZONE_DMA config NEED_DMA_MAP_STATE def_bool y +config NEED_SG_DMA_LENGTH + def_bool y + config GENERIC_ISA_DMA bool default y if SPARC32 diff --git a/arch/sparc/include/asm/scatterlist.h b/arch/sparc/include/asm/scatterlist.h index 0fa0d6da2107..69d21bb052f1 100644 --- a/arch/sparc/include/asm/scatterlist.h +++ b/arch/sparc/include/asm/scatterlist.h @@ -1,8 +1,6 @@ #ifndef _SPARC_SCATTERLIST_H #define _SPARC_SCATTERLIST_H -#define sg_dma_len(sg) ((sg)->dma_length) - #define ISA_DMA_THRESHOLD (~0UL) #include diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e0c619c55b4e..5bdc143b1228 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -109,6 +109,9 @@ config SBUS config NEED_DMA_MAP_STATE def_bool (X86_64 || DMAR || DMA_API_DEBUG) +config NEED_SG_DMA_LENGTH + def_bool X86_64 + config GENERIC_ISA_DMA def_bool y diff --git a/include/asm-generic/scatterlist.h b/include/asm-generic/scatterlist.h index 51a7a43ab0ce..5e087944a659 100644 --- a/include/asm-generic/scatterlist.h +++ b/include/asm-generic/scatterlist.h @@ -11,7 +11,9 @@ struct scatterlist { unsigned int offset; unsigned int length; dma_addr_t dma_address; +#ifdef CONFIG_NEED_SG_DMA_LENGTH unsigned int dma_length; +#endif }; /* @@ -22,17 +24,12 @@ struct scatterlist { * is 0. */ #define sg_dma_address(sg) ((sg)->dma_address) -#ifndef sg_dma_len -/* - * Normally, you have an iommu on 64 bit machines, but not on 32 bit - * machines. Architectures that are differnt should override this. - */ -#if __BITS_PER_LONG == 64 + +#ifdef CONFIG_NEED_SG_DMA_LENGTH #define sg_dma_len(sg) ((sg)->dma_length) #else #define sg_dma_len(sg) ((sg)->length) -#endif /* 64 bit */ -#endif /* sg_dma_len */ +#endif #define ARCH_HAS_SG_CHAIN -- cgit v1.2.3 From 1ef04370d823a811d2cca9f237097559a6b99b12 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Wed, 26 May 2010 14:44:34 -0700 Subject: asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h There are more architectures that don't support ARCH_HAS_SG_CHAIN than those that support it. This removes removes ARCH_HAS_SG_CHAIN in asm-generic/scatterlist.h and lets arhictectures to define it. It's clearer than defining ARCH_HAS_SG_CHAIN asm-generic/scatterlist.h and undefing it in arhictectures that don't support it. Signed-off-by: FUJITA Tomonori Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/scatterlist.h | 4 +--- arch/arm/include/asm/scatterlist.h | 3 --- arch/ia64/include/asm/scatterlist.h | 4 ++-- arch/microblaze/include/asm/scatterlist.h | 4 ++-- arch/powerpc/include/asm/scatterlist.h | 1 + arch/sparc/include/asm/scatterlist.h | 5 +++-- arch/x86/include/asm/scatterlist.h | 5 +++-- include/asm-generic/scatterlist.h | 2 -- 8 files changed, 12 insertions(+), 16 deletions(-) (limited to 'arch/ia64') diff --git a/arch/alpha/include/asm/scatterlist.h b/arch/alpha/include/asm/scatterlist.h index 85a0ef25516b..5728c52a7412 100644 --- a/arch/alpha/include/asm/scatterlist.h +++ b/arch/alpha/include/asm/scatterlist.h @@ -1,10 +1,8 @@ #ifndef _ALPHA_SCATTERLIST_H #define _ALPHA_SCATTERLIST_H -#define ISA_DMA_THRESHOLD (~0UL) - #include -#undef ARCH_HAS_SG_CHAIN +#define ISA_DMA_THRESHOLD (~0UL) #endif /* !(_ALPHA_SCATTERLIST_H) */ diff --git a/arch/arm/include/asm/scatterlist.h b/arch/arm/include/asm/scatterlist.h index bcda59f39941..2f87870d9347 100644 --- a/arch/arm/include/asm/scatterlist.h +++ b/arch/arm/include/asm/scatterlist.h @@ -3,9 +3,6 @@ #include #include - #include -#undef ARCH_HAS_SG_CHAIN - #endif /* _ASMARM_SCATTERLIST_H */ diff --git a/arch/ia64/include/asm/scatterlist.h b/arch/ia64/include/asm/scatterlist.h index d8e98961dec7..f299a4fb25c8 100644 --- a/arch/ia64/include/asm/scatterlist.h +++ b/arch/ia64/include/asm/scatterlist.h @@ -1,6 +1,7 @@ #ifndef _ASM_IA64_SCATTERLIST_H #define _ASM_IA64_SCATTERLIST_H +#include /* * It used to be that ISA_DMA_THRESHOLD had something to do with the * DMA-limits of ISA-devices. Nowadays, its only remaining use (apart @@ -10,7 +11,6 @@ * that's 4GB - 1. */ #define ISA_DMA_THRESHOLD 0xffffffff - -#include +#define ARCH_HAS_SG_CHAIN #endif /* _ASM_IA64_SCATTERLIST_H */ diff --git a/arch/microblaze/include/asm/scatterlist.h b/arch/microblaze/include/asm/scatterlist.h index be44d94cba54..dc4a8900cc80 100644 --- a/arch/microblaze/include/asm/scatterlist.h +++ b/arch/microblaze/include/asm/scatterlist.h @@ -1,3 +1,3 @@ -#define ISA_DMA_THRESHOLD (~0UL) - #include + +#define ISA_DMA_THRESHOLD (~0UL) diff --git a/arch/powerpc/include/asm/scatterlist.h b/arch/powerpc/include/asm/scatterlist.h index 4ae35da4975e..34cc78fd0ef4 100644 --- a/arch/powerpc/include/asm/scatterlist.h +++ b/arch/powerpc/include/asm/scatterlist.h @@ -15,5 +15,6 @@ #ifdef __powerpc64__ #define ISA_DMA_THRESHOLD (~0UL) #endif +#define ARCH_HAS_SG_CHAIN #endif /* _ASM_POWERPC_SCATTERLIST_H */ diff --git a/arch/sparc/include/asm/scatterlist.h b/arch/sparc/include/asm/scatterlist.h index 69d21bb052f1..433e45f05fd4 100644 --- a/arch/sparc/include/asm/scatterlist.h +++ b/arch/sparc/include/asm/scatterlist.h @@ -1,8 +1,9 @@ #ifndef _SPARC_SCATTERLIST_H #define _SPARC_SCATTERLIST_H -#define ISA_DMA_THRESHOLD (~0UL) - #include +#define ISA_DMA_THRESHOLD (~0UL) +#define ARCH_HAS_SG_CHAIN + #endif /* !(_SPARC_SCATTERLIST_H) */ diff --git a/arch/x86/include/asm/scatterlist.h b/arch/x86/include/asm/scatterlist.h index 75af592677ec..fb0b1874396f 100644 --- a/arch/x86/include/asm/scatterlist.h +++ b/arch/x86/include/asm/scatterlist.h @@ -1,8 +1,9 @@ #ifndef _ASM_X86_SCATTERLIST_H #define _ASM_X86_SCATTERLIST_H -#define ISA_DMA_THRESHOLD (0x00ffffff) - #include +#define ISA_DMA_THRESHOLD (0x00ffffff) +#define ARCH_HAS_SG_CHAIN + #endif /* _ASM_X86_SCATTERLIST_H */ diff --git a/include/asm-generic/scatterlist.h b/include/asm-generic/scatterlist.h index 5e087944a659..5de07355fad4 100644 --- a/include/asm-generic/scatterlist.h +++ b/include/asm-generic/scatterlist.h @@ -31,6 +31,4 @@ struct scatterlist { #define sg_dma_len(sg) ((sg)->length) #endif -#define ARCH_HAS_SG_CHAIN - #endif /* __ASM_GENERIC_SCATTERLIST_H */ -- cgit v1.2.3 From 3bccd996276b108c138e8176793a26ecef54d573 Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Wed, 26 May 2010 14:44:59 -0700 Subject: numa: ia64: use generic percpu var numa_node_id() implementation ia64: Use generic percpu implementation of numa_node_id() + intialize per cpu 'numa_node' + remove ia64 cpu_to_node() macro; use generic + define CONFIG_USE_PERCPU_NUMA_NODE_ID when NUMA configured Signed-off-by: Lee Schermerhorn Reviewed-by: Christoph Lameter Cc: Tejun Heo Cc: Mel Gorman Cc: Christoph Lameter Cc: Nick Piggin Cc: David Rientjes Cc: Eric Whitney Cc: KAMEZAWA Hiroyuki Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: "Luck, Tony" Cc: Pekka Enberg Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/Kconfig | 4 ++++ arch/ia64/include/asm/topology.h | 5 ----- arch/ia64/kernel/smpboot.c | 6 ++++++ 3 files changed, 10 insertions(+), 5 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index f8afdd271f3d..00ba08708873 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -498,6 +498,10 @@ config HAVE_ARCH_NODEDATA_EXTENSION def_bool y depends on NUMA +config USE_PERCPU_NUMA_NODE_ID + def_bool y + depends on NUMA + config ARCH_PROC_KCORE_TEXT def_bool y depends on PROC_KCORE diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h index d323071d0f91..09f646753d1a 100644 --- a/arch/ia64/include/asm/topology.h +++ b/arch/ia64/include/asm/topology.h @@ -25,11 +25,6 @@ */ #define RECLAIM_DISTANCE 15 -/* - * Returns the number of the node containing CPU 'cpu' - */ -#define cpu_to_node(cpu) (int)(cpu_to_node_map[cpu]) - /* * Returns a bitmask of CPUs on Node 'node'. */ diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index e5230b2ff2c5..8aae2d9b2680 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -390,6 +390,11 @@ smp_callin (void) fix_b0_for_bsp(); + /* + * numa_node_id() works after this. + */ + set_numa_node(cpu_to_node_map[cpuid]); + ipi_call_lock_irq(); spin_lock(&vector_lock); /* Setup the per cpu irq handling data structures */ @@ -632,6 +637,7 @@ void __devinit smp_prepare_boot_cpu(void) { cpu_set(smp_processor_id(), cpu_online_map); cpu_set(smp_processor_id(), cpu_callin_map); + set_numa_node(cpu_to_node_map[smp_processor_id()]); per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; paravirt_post_smp_prepare_boot_cpu(); } -- cgit v1.2.3 From fd1197f1131a1f1d8bc192f9cfbbe17e305f17f3 Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Wed, 26 May 2010 14:45:01 -0700 Subject: numa: ia64: support numa_mem_id() for memoryless nodes Enable 'HAVE_MEMORYLESS_NODES' by default when NUMA configured on ia64. Initialize percpu 'numa_mem' variable when starting secondary cpus. Generic initialization will handle the boot cpu. Nothing uses 'numa_mem_id()' yet. Subsequent patch with modify slab to use this. Signed-off-by: Lee Schermerhorn Cc: Tejun Heo Cc: Mel Gorman Cc: Christoph Lameter Cc: Nick Piggin Cc: David Rientjes Cc: Eric Whitney Cc: KAMEZAWA Hiroyuki Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: "Luck, Tony" Cc: Pekka Enberg Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/Kconfig | 4 ++++ arch/ia64/kernel/smpboot.c | 1 + 2 files changed, 5 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 00ba08708873..95610820041e 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -502,6 +502,10 @@ config USE_PERCPU_NUMA_NODE_ID def_bool y depends on NUMA +config HAVE_MEMORYLESS_NODES + def_bool y + depends on NUMA + config ARCH_PROC_KCORE_TEXT def_bool y depends on PROC_KCORE diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 8aae2d9b2680..518e876a410d 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -394,6 +394,7 @@ smp_callin (void) * numa_node_id() works after this. */ set_numa_node(cpu_to_node_map[cpuid]); + set_numa_mem(local_memory_node(cpu_to_node_map[cpuid])); ipi_call_lock_irq(); spin_lock(&vector_lock); -- cgit v1.2.3 From 4ec37de89d8c758ee8115e0e64b3f994910789ee Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 27 May 2010 15:35:13 -0700 Subject: [IA64] Fix build breakage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In commit 0ac0c0d0f837c499afd02a802f9cf52d3027fa3b cpusets: randomize node rotor used in cpuset_mem_spread_node() Jack Steiner fixed a problem with too many small tasks being assigned to node 0. Copy his code to ia64 to avoid build error. arch/ia64/kernel/smpboot.c:641: error: ‘cpu_to_node_map’ undeclared (first use in this function) In commit 3bccd996276b108c138e8176793a26ecef54d573 numa: ia64: use generic percpu var numa_node_id() implementation Lee Schermerhorn added some set_numa_node() calls - but these only work on CONFIG_NUMA=y configurations. Surround the calls with #ifdef CONFIG_NUMA Signed-off-by: Tony Luck --- arch/ia64/kernel/smpboot.c | 4 ++++ arch/ia64/mm/numa.c | 17 +++++++++++++++++ 2 files changed, 21 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 518e876a410d..6a1380e90f87 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -390,11 +390,13 @@ smp_callin (void) fix_b0_for_bsp(); +#ifdef CONFIG_NUMA /* * numa_node_id() works after this. */ set_numa_node(cpu_to_node_map[cpuid]); set_numa_mem(local_memory_node(cpu_to_node_map[cpuid])); +#endif ipi_call_lock_irq(); spin_lock(&vector_lock); @@ -638,7 +640,9 @@ void __devinit smp_prepare_boot_cpu(void) { cpu_set(smp_processor_id(), cpu_online_map); cpu_set(smp_processor_id(), cpu_callin_map); +#ifdef CONFIG_NUMA set_numa_node(cpu_to_node_map[smp_processor_id()]); +#endif per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; paravirt_post_smp_prepare_boot_cpu(); } diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c index 3efea7d0a351..2437718bd6b1 100644 --- a/arch/ia64/mm/numa.c +++ b/arch/ia64/mm/numa.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -50,6 +51,22 @@ paddr_to_nid(unsigned long paddr) return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0); } +/* + * Return the bit number of a random bit set in the nodemask. + * (returns -1 if nodemask is empty) + */ +int __node_random(const nodemask_t *maskp) +{ + int w, bit = -1; + + w = nodes_weight(*maskp); + if (w) + bit = bitmap_ord_to_pos(maskp->bits, + get_random_int() % w, MAX_NUMNODES); + return bit; +} +EXPORT_SYMBOL(__node_random); + #if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA) /* * Because of holes evaluate on section limits. -- cgit v1.2.3 From b3f2f6cd1ff935ecac9a5346904b899d7af689fe Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 30 May 2010 10:08:03 -0700 Subject: ia64: revert __node_random addition This partially reverts commit 4ec37de89d8c758ee8115e0e64b3f994910789ee ("[IA64] Fix build breakage"), since the commit that made it necessary got reverted earlier (see commit 35926ff5fba8, 'Revert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"') Even if we ever re-introduce this, there is no reason to make __node_random be some architecture-specific function. Signed-off-by: Linus Torvalds --- arch/ia64/mm/numa.c | 17 ----------------- 1 file changed, 17 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c index 2437718bd6b1..3efea7d0a351 100644 --- a/arch/ia64/mm/numa.c +++ b/arch/ia64/mm/numa.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include @@ -51,22 +50,6 @@ paddr_to_nid(unsigned long paddr) return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0); } -/* - * Return the bit number of a random bit set in the nodemask. - * (returns -1 if nodemask is empty) - */ -int __node_random(const nodemask_t *maskp) -{ - int w, bit = -1; - - w = nodes_weight(*maskp); - if (w) - bit = bitmap_ord_to_pos(maskp->bits, - get_random_int() % w, MAX_NUMNODES); - return bit; -} -EXPORT_SYMBOL(__node_random); - #if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA) /* * Because of holes evaluate on section limits. -- cgit v1.2.3