From patchwork Tue Dec 18 10:12:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 10735341 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 365481399 for ; Tue, 18 Dec 2018 10:13:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2841C2A670 for ; Tue, 18 Dec 2018 10:13:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2602E2A800; Tue, 18 Dec 2018 10:13:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4470D2A670 for ; Tue, 18 Dec 2018 10:13:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726682AbeLRKMV (ORCPT ); Tue, 18 Dec 2018 05:12:21 -0500 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:42564 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726487AbeLRKMU (ORCPT ); Tue, 18 Dec 2018 05:12:20 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D98CFA78; Tue, 18 Dec 2018 02:12:18 -0800 (PST) Received: from p8cg001049571a15.blr.arm.com (p8cg001049571a15.blr.arm.com [10.162.41.146]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id BC0153F5C0; Tue, 18 Dec 2018 02:12:10 -0800 (PST) From: Anshuman Khandual To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: ocfs2-devel@oss.oracle.com, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-media@vger.kernel.org, iommu@lists.linux-foundation.org, linux-rdma@vger.kernel.org, dmaengine@vger.kernel.org, linux-block@vger.kernel.org, sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-ia64@vger.kernel.org, linux-alpha@vger.kernel.org, akpm@linux-foundation.org, jiangqi903@gmail.com, hverkuil@xs4all.nl, vkoul@kernel.org, sfr@canb.auug.org.au, dledford@redhat.com, mpe@ellerman.id.au, axboe@kernel.dk, jeffrey.t.kirsher@intel.com, david@redhat.com Subject: [PATCH V3 1/2] mm: Replace all open encodings for NUMA_NO_NODE Date: Tue, 18 Dec 2018 15:42:12 +0530 Message-Id: <1545127933-10711-2-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1545127933-10711-1-git-send-email-anshuman.khandual@arm.com> References: <1545127933-10711-1-git-send-email-anshuman.khandual@arm.com> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP At present there are multiple places where invalid node number is encoded as -1. Even though implicitly understood it is always better to have macros in there. Replace these open encodings for an invalid node number with the global macro NUMA_NO_NODE. This helps remove NUMA related assumptions like 'invalid node' from various places redirecting them to a common definition. Reviewed-by: David Hildenbrand Acked-by: Jeff Kirsher [ixgbe] Acked-by: Jens Axboe [mtip32xx] Acked-by: Vinod Koul [dmaengine.c] Acked-by: Michael Ellerman [powerpc] Acked-by: Doug Ledford [drivers/infiniband] Signed-off-by: Anshuman Khandual --- arch/alpha/include/asm/topology.h | 3 ++- arch/ia64/kernel/numa.c | 2 +- arch/ia64/mm/discontig.c | 6 +++--- arch/powerpc/include/asm/pci-bridge.h | 3 ++- arch/powerpc/kernel/paca.c | 3 ++- arch/powerpc/kernel/pci-common.c | 3 ++- arch/powerpc/mm/numa.c | 14 +++++++------- arch/powerpc/platforms/powernv/memtrace.c | 5 +++-- arch/sparc/kernel/pci_fire.c | 3 ++- arch/sparc/kernel/pci_schizo.c | 3 ++- arch/sparc/kernel/psycho_common.c | 3 ++- arch/sparc/kernel/sbus.c | 3 ++- arch/sparc/mm/init_64.c | 6 +++--- arch/x86/include/asm/pci.h | 3 ++- arch/x86/kernel/apic/x2apic_uv_x.c | 7 ++++--- arch/x86/kernel/smpboot.c | 3 ++- drivers/block/mtip32xx/mtip32xx.c | 5 +++-- drivers/dma/dmaengine.c | 4 +++- drivers/infiniband/hw/hfi1/affinity.c | 3 ++- drivers/infiniband/hw/hfi1/init.c | 3 ++- drivers/iommu/dmar.c | 5 +++-- drivers/iommu/intel-iommu.c | 3 ++- drivers/misc/sgi-xp/xpc_uv.c | 3 ++- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 5 +++-- include/linux/device.h | 2 +- init/init_task.c | 3 ++- kernel/kthread.c | 3 ++- kernel/sched/fair.c | 15 ++++++++------- lib/cpumask.c | 3 ++- mm/huge_memory.c | 13 +++++++------ mm/hugetlb.c | 3 ++- mm/ksm.c | 2 +- mm/memory.c | 7 ++++--- mm/memory_hotplug.c | 12 ++++++------ mm/mempolicy.c | 2 +- mm/page_alloc.c | 4 ++-- mm/page_ext.c | 2 +- net/core/pktgen.c | 3 ++- net/qrtr/qrtr.c | 3 ++- 39 files changed, 104 insertions(+), 74 deletions(-) diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h index e6e13a8..5a77a40 100644 --- a/arch/alpha/include/asm/topology.h +++ b/arch/alpha/include/asm/topology.h @@ -4,6 +4,7 @@ #include #include +#include #include #ifdef CONFIG_NUMA @@ -29,7 +30,7 @@ static const struct cpumask *cpumask_of_node(int node) { int cpu; - if (node == -1) + if (node == NUMA_NO_NODE) return cpu_all_mask; cpumask_clear(&node_to_cpumask_map[node]); diff --git a/arch/ia64/kernel/numa.c b/arch/ia64/kernel/numa.c index 92c3762..1315da6 100644 --- a/arch/ia64/kernel/numa.c +++ b/arch/ia64/kernel/numa.c @@ -74,7 +74,7 @@ void __init build_cpu_to_node_map(void) cpumask_clear(&node_to_cpu_mask[node]); for_each_possible_early_cpu(cpu) { - node = -1; + node = NUMA_NO_NODE; for (i = 0; i < NR_CPUS; ++i) if (cpu_physical_id(cpu) == node_cpuid[i].phys_id) { node = node_cpuid[i].nid; diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index 8a96578..f9c3675 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -227,7 +227,7 @@ void __init setup_per_cpu_areas(void) * CPUs are put into groups according to node. Walk cpu_map * and create new groups at node boundaries. */ - prev_node = -1; + prev_node = NUMA_NO_NODE; ai->nr_groups = 0; for (unit = 0; unit < nr_units; unit++) { cpu = cpu_map[unit]; @@ -435,7 +435,7 @@ static void __init *memory_less_node_alloc(int nid, unsigned long pernodesize) { void *ptr = NULL; u8 best = 0xff; - int bestnode = -1, node, anynode = 0; + int bestnode = NUMA_NO_NODE, node, anynode = 0; for_each_online_node(node) { if (node_isset(node, memory_less_mask)) @@ -447,7 +447,7 @@ static void __init *memory_less_node_alloc(int nid, unsigned long pernodesize) anynode = node; } - if (bestnode == -1) + if (bestnode == NUMA_NO_NODE) bestnode = anynode; ptr = memblock_alloc_try_nid(pernodesize, PERCPU_PAGE_SIZE, diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 94d4490..97bf4b1 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -10,6 +10,7 @@ #include #include #include +#include struct device_node; @@ -264,7 +265,7 @@ extern int pcibios_map_io_space(struct pci_bus *bus); #ifdef CONFIG_NUMA #define PHB_SET_NODE(PHB, NODE) ((PHB)->node = (NODE)) #else -#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = -1) +#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = NUMA_NO_NODE) #endif #endif /* CONFIG_PPC64 */ diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index 913bfca..b848012 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -36,7 +37,7 @@ static void *__init alloc_paca_data(unsigned long size, unsigned long align, * which will put its paca in the right place. */ if (cpu == boot_cpuid) { - nid = -1; + nid = NUMA_NO_NODE; memblock_set_bottom_up(true); } else { nid = early_cpu_to_node(cpu); diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 88e4f69..4538e8d 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -132,7 +133,7 @@ struct pci_controller *pcibios_alloc_controller(struct device_node *dev) int nid = of_node_to_nid(dev); if (nid < 0 || !node_online(nid)) - nid = -1; + nid = NUMA_NO_NODE; PHB_SET_NODE(phb, nid); } diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index ce28ae5..84ad8c9 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -215,7 +215,7 @@ static void initialize_distance_lookup_table(int nid, */ static int associativity_to_nid(const __be32 *associativity) { - int nid = -1; + int nid = NUMA_NO_NODE; if (min_common_depth == -1) goto out; @@ -225,7 +225,7 @@ static int associativity_to_nid(const __be32 *associativity) /* POWER4 LPAR uses 0xffff as invalid node */ if (nid == 0xffff || nid >= MAX_NUMNODES) - nid = -1; + nid = NUMA_NO_NODE; if (nid > 0 && of_read_number(associativity, 1) >= distance_ref_points_depth) { @@ -244,7 +244,7 @@ static int associativity_to_nid(const __be32 *associativity) */ static int of_node_to_nid_single(struct device_node *device) { - int nid = -1; + int nid = NUMA_NO_NODE; const __be32 *tmp; tmp = of_get_associativity(device); @@ -256,7 +256,7 @@ static int of_node_to_nid_single(struct device_node *device) /* Walk the device tree upwards, looking for an associativity id */ int of_node_to_nid(struct device_node *device) { - int nid = -1; + int nid = NUMA_NO_NODE; of_node_get(device); while (device) { @@ -454,7 +454,7 @@ static int of_drconf_to_nid_single(struct drmem_lmb *lmb) */ static int numa_setup_cpu(unsigned long lcpu) { - int nid = -1; + int nid = NUMA_NO_NODE; struct device_node *cpu; /* @@ -930,7 +930,7 @@ static int hot_add_drconf_scn_to_nid(unsigned long scn_addr) { struct drmem_lmb *lmb; unsigned long lmb_size; - int nid = -1; + int nid = NUMA_NO_NODE; lmb_size = drmem_lmb_size(); @@ -960,7 +960,7 @@ static int hot_add_drconf_scn_to_nid(unsigned long scn_addr) static int hot_add_node_scn_to_nid(unsigned long scn_addr) { struct device_node *memory; - int nid = -1; + int nid = NUMA_NO_NODE; for_each_node_by_type(memory, "memory") { unsigned long start, size; diff --git a/arch/powerpc/platforms/powernv/memtrace.c b/arch/powerpc/platforms/powernv/memtrace.c index 84d038e..248a38a 100644 --- a/arch/powerpc/platforms/powernv/memtrace.c +++ b/arch/powerpc/platforms/powernv/memtrace.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -223,7 +224,7 @@ static int memtrace_online(void) ent = &memtrace_array[i]; /* We have onlined this chunk previously */ - if (ent->nid == -1) + if (ent->nid == NUMA_NO_NODE) continue; /* Remove from io mappings */ @@ -257,7 +258,7 @@ static int memtrace_online(void) */ debugfs_remove_recursive(ent->dir); pr_info("Added trace memory back to node %d\n", ent->nid); - ent->size = ent->start = ent->nid = -1; + ent->size = ent->start = ent->nid = NUMA_NO_NODE; } if (ret) return ret; diff --git a/arch/sparc/kernel/pci_fire.c b/arch/sparc/kernel/pci_fire.c index be71ae0..0ca08d4 100644 --- a/arch/sparc/kernel/pci_fire.c +++ b/arch/sparc/kernel/pci_fire.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -416,7 +417,7 @@ static int pci_fire_pbm_init(struct pci_pbm_info *pbm, struct device_node *dp = op->dev.of_node; int err; - pbm->numa_node = -1; + pbm->numa_node = NUMA_NO_NODE; pbm->pci_ops = &sun4u_pci_ops; pbm->config_space_reg_bits = 12; diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c index 934b97c..421aba0 100644 --- a/arch/sparc/kernel/pci_schizo.c +++ b/arch/sparc/kernel/pci_schizo.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -1347,7 +1348,7 @@ static int schizo_pbm_init(struct pci_pbm_info *pbm, pbm->next = pci_pbm_root; pci_pbm_root = pbm; - pbm->numa_node = -1; + pbm->numa_node = NUMA_NO_NODE; pbm->pci_ops = &sun4u_pci_ops; pbm->config_space_reg_bits = 8; diff --git a/arch/sparc/kernel/psycho_common.c b/arch/sparc/kernel/psycho_common.c index 81aa91e..e90bcb6 100644 --- a/arch/sparc/kernel/psycho_common.c +++ b/arch/sparc/kernel/psycho_common.c @@ -5,6 +5,7 @@ */ #include #include +#include #include @@ -454,7 +455,7 @@ void psycho_pbm_init_common(struct pci_pbm_info *pbm, struct platform_device *op struct device_node *dp = op->dev.of_node; pbm->name = dp->full_name; - pbm->numa_node = -1; + pbm->numa_node = NUMA_NO_NODE; pbm->chip_type = chip_type; pbm->chip_version = of_getintprop_default(dp, "version#", 0); pbm->chip_revision = of_getintprop_default(dp, "module-revision#", 0); diff --git a/arch/sparc/kernel/sbus.c b/arch/sparc/kernel/sbus.c index c133dfc..e6fd924 100644 --- a/arch/sparc/kernel/sbus.c +++ b/arch/sparc/kernel/sbus.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -561,7 +562,7 @@ static void __init sbus_iommu_init(struct platform_device *op) op->dev.archdata.iommu = iommu; op->dev.archdata.stc = strbuf; - op->dev.archdata.numa_node = -1; + op->dev.archdata.numa_node = NUMA_NO_NODE; reg_base = regs + SYSIO_IOMMUREG_BASE; iommu->iommu_control = reg_base + IOMMU_CONTROL; diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 3c8aac2..cb1bed1 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -976,13 +976,13 @@ static u64 __init memblock_nid_range_sun4u(u64 start, u64 end, int *nid) { int prev_nid, new_nid; - prev_nid = -1; + prev_nid = NUMA_NO_NODE; for ( ; start < end; start += PAGE_SIZE) { for (new_nid = 0; new_nid < num_node_masks; new_nid++) { struct node_mem_mask *p = &node_masks[new_nid]; if ((start & p->mask) == p->match) { - if (prev_nid == -1) + if (prev_nid == NUMA_NO_NODE) prev_nid = new_nid; break; } @@ -1208,7 +1208,7 @@ int of_node_to_nid(struct device_node *dp) md = mdesc_grab(); count = 0; - nid = -1; + nid = NUMA_NO_NODE; mdesc_for_each_node_by_name(md, grp, "group") { if (!scan_arcs_for_cfg_handle(md, grp, cfg_handle)) { nid = count; diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index 6629636..e662f98 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -141,7 +142,7 @@ cpumask_of_pcibus(const struct pci_bus *bus) int node; node = __pcibus_to_node(bus); - return (node == -1) ? cpu_online_mask : + return (node == NUMA_NO_NODE) ? cpu_online_mask : cpumask_of_node(node); } #endif diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 391f358..1ff658f 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include @@ -1390,7 +1391,7 @@ static void __init build_socket_tables(void) } /* Set socket -> node values: */ - lnid = -1; + lnid = NUMA_NO_NODE; for_each_present_cpu(cpu) { int nid = cpu_to_node(cpu); int apicid, sockid; @@ -1521,7 +1522,7 @@ static void __init uv_system_init_hub(void) new_hub->pnode = 0xffff; new_hub->numa_blade_id = uv_node_to_blade_id(nodeid); - new_hub->memory_nid = -1; + new_hub->memory_nid = NUMA_NO_NODE; new_hub->nr_possible_cpus = 0; new_hub->nr_online_cpus = 0; } @@ -1538,7 +1539,7 @@ static void __init uv_system_init_hub(void) uv_cpu_info_per(cpu)->p_uv_hub_info = uv_hub_info_list(nodeid); uv_cpu_info_per(cpu)->blade_cpu_id = uv_cpu_hub_info(cpu)->nr_possible_cpus++; - if (uv_cpu_hub_info(cpu)->memory_nid == -1) + if (uv_cpu_hub_info(cpu)->memory_nid == NUMA_NO_NODE) uv_cpu_hub_info(cpu)->memory_nid = cpu_to_node(cpu); /* Init memoryless node: */ diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index a9134d1..0e1ff8f 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -56,6 +56,7 @@ #include #include #include +#include #include #include @@ -841,7 +842,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip) /* reduce the number of lines printed when booting a large cpu count system */ static void announce_cpu(int cpu, int apicid) { - static int current_node = -1; + static int current_node = NUMA_NO_NODE; int node = early_cpu_to_node(cpu); static int width, node_width; diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index a7daa8a..bbe3871 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -40,6 +40,7 @@ #include #include #include +#include #include "mtip32xx.h" #define HW_CMD_SLOT_SZ (MTIP_MAX_COMMAND_SLOTS * 32) @@ -4084,9 +4085,9 @@ static int get_least_used_cpu_on_node(int node) /* Helper for selecting a node in round robin mode */ static inline int mtip_get_next_rr_node(void) { - static int next_node = -1; + static int next_node = NUMA_NO_NODE; - if (next_node == -1) { + if (next_node == NUMA_NO_NODE) { next_node = first_online_node; return next_node; } diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index f1a441ab..3a11b10 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -63,6 +63,7 @@ #include #include #include +#include static DEFINE_MUTEX(dma_list_mutex); static DEFINE_IDA(dma_ida); @@ -386,7 +387,8 @@ EXPORT_SYMBOL(dma_issue_pending_all); static bool dma_chan_is_local(struct dma_chan *chan, int cpu) { int node = dev_to_node(chan->device->dev); - return node == -1 || cpumask_test_cpu(cpu, cpumask_of_node(node)); + return node == NUMA_NO_NODE || + cpumask_test_cpu(cpu, cpumask_of_node(node)); } /** diff --git a/drivers/infiniband/hw/hfi1/affinity.c b/drivers/infiniband/hw/hfi1/affinity.c index 2baf38c..4fe662c 100644 --- a/drivers/infiniband/hw/hfi1/affinity.c +++ b/drivers/infiniband/hw/hfi1/affinity.c @@ -48,6 +48,7 @@ #include #include #include +#include #include "hfi.h" #include "affinity.h" @@ -777,7 +778,7 @@ void hfi1_dev_affinity_clean_up(struct hfi1_devdata *dd) _dev_comp_vect_cpu_mask_clean_up(dd, entry); unlock: mutex_unlock(&node_affinity.lock); - dd->node = -1; + dd->node = NUMA_NO_NODE; } /* diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c index 0904490..c25c402 100644 --- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -54,6 +54,7 @@ #include #include #include +#include #include #include "hfi.h" @@ -1303,7 +1304,7 @@ static struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev, dd->unit = ret; list_add(&dd->list, &hfi1_dev_list); } - dd->node = -1; + dd->node = NUMA_NO_NODE; spin_unlock_irqrestore(&hfi1_devs_lock, flags); idr_preload_end(); diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index d9c748b..01b967a 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include @@ -477,7 +478,7 @@ static int dmar_parse_one_rhsa(struct acpi_dmar_header *header, void *arg) int node = acpi_map_pxm_to_node(rhsa->proximity_domain); if (!node_online(node)) - node = -1; + node = NUMA_NO_NODE; drhd->iommu->node = node; return 0; } @@ -1062,7 +1063,7 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd) iommu->msagaw = msagaw; iommu->segment = drhd->segment; - iommu->node = -1; + iommu->node = NUMA_NO_NODE; ver = readl(iommu->reg + DMAR_VER_REG); pr_info("%s: reg_base_addr %llx ver %d:%d cap %llx ecap %llx\n", diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 41a4b88..9ca9794 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -47,6 +47,7 @@ #include #include #include +#include #include #include #include @@ -1772,7 +1773,7 @@ static struct dmar_domain *alloc_domain(int flags) return NULL; memset(domain, 0, sizeof(*domain)); - domain->nid = -1; + domain->nid = NUMA_NO_NODE; domain->flags = flags; domain->has_iotlb_device = false; INIT_LIST_HEAD(&domain->devices); diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index 0441abe..9e443df 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #if defined CONFIG_X86_64 #include @@ -61,7 +62,7 @@ static struct xpc_heartbeat_uv *xpc_heartbeat_uv; XPC_NOTIFY_MSG_SIZE_UV) #define XPC_NOTIFY_IRQ_NAME "xpc_notify" -static int xpc_mq_node = -1; +static int xpc_mq_node = NUMA_NO_NODE; static struct xpc_gru_mq_uv *xpc_activate_mq_uv; static struct xpc_gru_mq_uv *xpc_notify_mq_uv; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 113b38e..e33928c 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include #include @@ -6414,7 +6415,7 @@ int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring) { struct device *dev = tx_ring->dev; int orig_node = dev_to_node(dev); - int ring_node = -1; + int ring_node = NUMA_NO_NODE; int size; size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; @@ -6508,7 +6509,7 @@ int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter, { struct device *dev = rx_ring->dev; int orig_node = dev_to_node(dev); - int ring_node = -1; + int ring_node = NUMA_NO_NODE; int size; size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; diff --git a/include/linux/device.h b/include/linux/device.h index 1b25c7a..4921a61 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -1085,7 +1085,7 @@ static inline void set_dev_node(struct device *dev, int node) #else static inline int dev_to_node(struct device *dev) { - return -1; + return NUMA_NO_NODE; } static inline void set_dev_node(struct device *dev, int node) { diff --git a/init/init_task.c b/init/init_task.c index 5aebe3b..26131e7 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include @@ -154,7 +155,7 @@ struct task_struct init_task .vtime.state = VTIME_SYS, #endif #ifdef CONFIG_NUMA_BALANCING - .numa_preferred_nid = -1, + .numa_preferred_nid = NUMA_NO_NODE, .numa_group = NULL, .numa_faults = NULL, #endif diff --git a/kernel/kthread.c b/kernel/kthread.c index 087d18d..ebebbcf 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -20,6 +20,7 @@ #include #include #include +#include #include static DEFINE_SPINLOCK(kthread_create_lock); @@ -675,7 +676,7 @@ __kthread_create_worker(int cpu, unsigned int flags, { struct kthread_worker *worker; struct task_struct *task; - int node = -1; + int node = NUMA_NO_NODE; worker = kzalloc(sizeof(*worker), GFP_KERNEL); if (!worker) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index ac855b2..2ef0db2 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1161,7 +1161,7 @@ void init_numa_balancing(unsigned long clone_flags, struct task_struct *p) /* New address space, reset the preferred nid */ if (!(clone_flags & CLONE_VM)) { - p->numa_preferred_nid = -1; + p->numa_preferred_nid = NUMA_NO_NODE; return; } @@ -1181,13 +1181,13 @@ void init_numa_balancing(unsigned long clone_flags, struct task_struct *p) static void account_numa_enqueue(struct rq *rq, struct task_struct *p) { - rq->nr_numa_running += (p->numa_preferred_nid != -1); + rq->nr_numa_running += (p->numa_preferred_nid != NUMA_NO_NODE); rq->nr_preferred_running += (p->numa_preferred_nid == task_node(p)); } static void account_numa_dequeue(struct rq *rq, struct task_struct *p) { - rq->nr_numa_running -= (p->numa_preferred_nid != -1); + rq->nr_numa_running -= (p->numa_preferred_nid != NUMA_NO_NODE); rq->nr_preferred_running -= (p->numa_preferred_nid == task_node(p)); } @@ -1401,7 +1401,7 @@ bool should_numa_migrate_memory(struct task_struct *p, struct page * page, * two full passes of the "multi-stage node selection" test that is * executed below. */ - if ((p->numa_preferred_nid == -1 || p->numa_scan_seq <= 4) && + if ((p->numa_preferred_nid == NUMA_NO_NODE || p->numa_scan_seq <= 4) && (cpupid_pid_unset(last_cpupid) || cpupid_match_pid(p, last_cpupid))) return true; @@ -1849,7 +1849,7 @@ static void numa_migrate_preferred(struct task_struct *p) unsigned long interval = HZ; /* This task has no NUMA fault statistics yet */ - if (unlikely(p->numa_preferred_nid == -1 || !p->numa_faults)) + if (unlikely(p->numa_preferred_nid == NUMA_NO_NODE || !p->numa_faults)) return; /* Periodically retry migrating the task to the preferred node */ @@ -2096,7 +2096,7 @@ static int preferred_group_nid(struct task_struct *p, int nid) static void task_numa_placement(struct task_struct *p) { - int seq, nid, max_nid = -1; + int seq, nid, max_nid = NUMA_NO_NODE; unsigned long max_faults = 0; unsigned long fault_types[2] = { 0, 0 }; unsigned long total_faults; @@ -2639,7 +2639,8 @@ static void update_scan_period(struct task_struct *p, int new_cpu) * the preferred node. */ if (dst_nid == p->numa_preferred_nid || - (p->numa_preferred_nid != -1 && src_nid != p->numa_preferred_nid)) + (p->numa_preferred_nid != NUMA_NO_NODE && + src_nid != p->numa_preferred_nid)) return; } diff --git a/lib/cpumask.c b/lib/cpumask.c index 8d666ab..087a3e9 100644 --- a/lib/cpumask.c +++ b/lib/cpumask.c @@ -5,6 +5,7 @@ #include #include #include +#include /** * cpumask_next - get the next cpu in a cpumask @@ -206,7 +207,7 @@ unsigned int cpumask_local_spread(unsigned int i, int node) /* Wrap: we always want a cpu. */ i %= num_online_cpus(); - if (node == -1) { + if (node == NUMA_NO_NODE) { for_each_cpu(cpu, cpu_online_mask) if (i-- == 0) return cpu; diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 5da55b3..b29a01e 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -1469,7 +1470,7 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd) struct anon_vma *anon_vma = NULL; struct page *page; unsigned long haddr = vmf->address & HPAGE_PMD_MASK; - int page_nid = -1, this_nid = numa_node_id(); + int page_nid = NUMA_NO_NODE, this_nid = numa_node_id(); int target_nid, last_cpupid = -1; bool page_locked; bool migrated = false; @@ -1515,7 +1516,7 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd) */ page_locked = trylock_page(page); target_nid = mpol_misplaced(page, vma, haddr); - if (target_nid == -1) { + if (target_nid == NUMA_NO_NODE) { /* If the page was locked, there are no parallel migrations */ if (page_locked) goto clear_pmdnuma; @@ -1523,7 +1524,7 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd) /* Migration could have started since the pmd_trans_migrating check */ if (!page_locked) { - page_nid = -1; + page_nid = NUMA_NO_NODE; if (!get_page_unless_zero(page)) goto out_unlock; spin_unlock(vmf->ptl); @@ -1545,14 +1546,14 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd) if (unlikely(!pmd_same(pmd, *vmf->pmd))) { unlock_page(page); put_page(page); - page_nid = -1; + page_nid = NUMA_NO_NODE; goto out_unlock; } /* Bail if we fail to protect against THP splits for any reason */ if (unlikely(!anon_vma)) { put_page(page); - page_nid = -1; + page_nid = NUMA_NO_NODE; goto clear_pmdnuma; } @@ -1614,7 +1615,7 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd) if (anon_vma) page_unlock_anon_vma_read(anon_vma); - if (page_nid != -1) + if (page_nid != NUMA_NO_NODE) task_numa_fault(last_cpupid, page_nid, HPAGE_PMD_NR, flags); diff --git a/mm/hugetlb.c b/mm/hugetlb.c index a808324..333c819 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -887,7 +888,7 @@ static struct page *dequeue_huge_page_nodemask(struct hstate *h, gfp_t gfp_mask, struct zonelist *zonelist; struct zone *zone; struct zoneref *z; - int node = -1; + int node = NUMA_NO_NODE; zonelist = node_zonelist(nid, gfp_mask); diff --git a/mm/ksm.c b/mm/ksm.c index 5b0894b..d5f8834 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -597,7 +597,7 @@ static struct stable_node *alloc_stable_node_chain(struct stable_node *dup, chain->chain_prune_time = jiffies; chain->rmap_hlist_len = STABLE_NODE_CHAIN; #if defined (CONFIG_DEBUG_VM) && defined(CONFIG_NUMA) - chain->nid = -1; /* debug */ + chain->nid = NUMA_NO_NODE; /* debug */ #endif ksm_stable_node_chains++; diff --git a/mm/memory.c b/mm/memory.c index 4ad2d29..ed324f8 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -69,6 +69,7 @@ #include #include #include +#include #include #include @@ -3564,7 +3565,7 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct page *page = NULL; - int page_nid = -1; + int page_nid = NUMA_NO_NODE; int last_cpupid; int target_nid; bool migrated = false; @@ -3631,7 +3632,7 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf) target_nid = numa_migrate_prep(page, vma, vmf->address, page_nid, &flags); pte_unmap_unlock(vmf->pte, vmf->ptl); - if (target_nid == -1) { + if (target_nid == NUMA_NO_NODE) { put_page(page); goto out; } @@ -3645,7 +3646,7 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf) flags |= TNF_MIGRATE_FAIL; out: - if (page_nid != -1) + if (page_nid != NUMA_NO_NODE) task_numa_fault(last_cpupid, page_nid, 1, flags); return 0; } diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 2b2b3cc..70e02f8 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -688,9 +688,9 @@ static void node_states_check_changes_online(unsigned long nr_pages, { int nid = zone_to_nid(zone); - arg->status_change_nid = -1; - arg->status_change_nid_normal = -1; - arg->status_change_nid_high = -1; + arg->status_change_nid = NUMA_NO_NODE; + arg->status_change_nid_normal = NUMA_NO_NODE; + arg->status_change_nid_high = NUMA_NO_NODE; if (!node_state(nid, N_MEMORY)) arg->status_change_nid = nid; @@ -1484,9 +1484,9 @@ static void node_states_check_changes_offline(unsigned long nr_pages, unsigned long present_pages = 0; enum zone_type zt; - arg->status_change_nid = -1; - arg->status_change_nid_normal = -1; - arg->status_change_nid_high = -1; + arg->status_change_nid = NUMA_NO_NODE; + arg->status_change_nid_normal = NUMA_NO_NODE; + arg->status_change_nid_high = NUMA_NO_NODE; /* * Check whether node_states[N_NORMAL_MEMORY] will be changed. diff --git a/mm/mempolicy.c b/mm/mempolicy.c index d4496d9..649c3e3 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2304,7 +2304,7 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long unsigned long pgoff; int thiscpu = raw_smp_processor_id(); int thisnid = cpu_to_node(thiscpu); - int polnid = -1; + int polnid = NUMA_NO_NODE; int ret = -1; pol = get_vma_policy(vma, addr); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 2ec9cc4..a4e1e24 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5846,7 +5846,7 @@ int __meminit __early_pfn_to_nid(unsigned long pfn, return state->last_nid; nid = memblock_search_pfn_nid(pfn, &start_pfn, &end_pfn); - if (nid != -1) { + if (nid != NUMA_NO_NODE) { state->last_start = start_pfn; state->last_end = end_pfn; state->last_nid = nid; @@ -6607,7 +6607,7 @@ unsigned long __init node_map_pfn_alignment(void) { unsigned long accl_mask = 0, last_end = 0; unsigned long start, end, mask; - int last_nid = -1; + int last_nid = NUMA_NO_NODE; int i, nid; for_each_mem_pfn_range(i, MAX_NUMNODES, &start, &end, &nid) { diff --git a/mm/page_ext.c b/mm/page_ext.c index ae44f7a..dfb0206 100644 --- a/mm/page_ext.c +++ b/mm/page_ext.c @@ -300,7 +300,7 @@ static int __meminit online_page_ext(unsigned long start_pfn, start = SECTION_ALIGN_DOWN(start_pfn); end = SECTION_ALIGN_UP(start_pfn + nr_pages); - if (nid == -1) { + if (nid == NUMA_NO_NODE) { /* * In this case, "nid" already exists and contains valid memory. * "start_pfn" passed to us is a pfn which is an arg for diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 6ac9198..f3f5a78 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -158,6 +158,7 @@ #include #include #include +#include #include #include #include @@ -3625,7 +3626,7 @@ static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) pkt_dev->svlan_cfi = 0; pkt_dev->svlan_id = 0xffff; pkt_dev->burst = 1; - pkt_dev->node = -1; + pkt_dev->node = NUMA_NO_NODE; err = pktgen_setup_dev(t->net, pkt_dev, ifname); if (err) diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index 86e1e37..b37e6e0 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -15,6 +15,7 @@ #include #include #include /* For TIOCINQ/OUTQ */ +#include #include @@ -101,7 +102,7 @@ static inline struct qrtr_sock *qrtr_sk(struct sock *sk) return container_of(sk, struct qrtr_sock, sk); } -static unsigned int qrtr_local_nid = -1; +static unsigned int qrtr_local_nid = NUMA_NO_NODE; /* for node ids */ static RADIX_TREE(qrtr_nodes, GFP_KERNEL);