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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-06 10:31:36 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-06 10:31:36 -0800
commit8dcd175bc3d50b78413c56d5b17d4bddd77412ef (patch)
tree2c2fb25759b43f2e73830f07ef3b444d76825280 /arch
parentMerge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc (diff)
parenttools/testing/selftests/proc/proc-self-syscall.c: remove duplicate include (diff)
downloadlinux-dev-8dcd175bc3d50b78413c56d5b17d4bddd77412ef.tar.xz
linux-dev-8dcd175bc3d50b78413c56d5b17d4bddd77412ef.zip
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: - a few misc things - ocfs2 updates - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (159 commits) tools/testing/selftests/proc/proc-self-syscall.c: remove duplicate include proc: more robust bulk read test proc: test /proc/*/maps, smaps, smaps_rollup, statm proc: use seq_puts() everywhere proc: read kernel cpu stat pointer once proc: remove unused argument in proc_pid_lookup() fs/proc/thread_self.c: code cleanup for proc_setup_thread_self() fs/proc/self.c: code cleanup for proc_setup_self() proc: return exit code 4 for skipped tests mm,mremap: bail out earlier in mremap_to under map pressure mm/sparse: fix a bad comparison mm/memory.c: do_fault: avoid usage of stale vm_area_struct writeback: fix inode cgroup switching comment mm/huge_memory.c: fix "orig_pud" set but not used mm/hotplug: fix an imbalance with DEBUG_PAGEALLOC mm/memcontrol.c: fix bad line in comment mm/cma.c: cma_declare_contiguous: correct err handling mm/page_ext.c: fix an imbalance with kmemleak mm/compaction: pass pgdat to too_many_isolated() instead of zone mm: remove zone_lru_lock() function, access ->lru_lock directly ...
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/include/asm/topology.h3
-rw-r--r--arch/arm64/Kconfig4
-rw-r--r--arch/arm64/include/asm/hugetlb.h5
-rw-r--r--arch/arm64/include/asm/memory.h4
-rw-r--r--arch/arm64/kernel/machine_kexec.c3
-rw-r--r--arch/arm64/mm/hugetlbpage.c20
-rw-r--r--arch/arm64/mm/init.c27
-rw-r--r--arch/arm64/mm/numa.c2
-rw-r--r--arch/ia64/kernel/numa.c2
-rw-r--r--arch/ia64/kernel/perfmon.c59
-rw-r--r--arch/ia64/mm/discontig.c6
-rw-r--r--arch/m68k/mm/memory.c2
-rw-r--r--arch/powerpc/include/asm/book3s/64/hugetlb.h12
-rw-r--r--arch/powerpc/include/asm/book3s/64/pgtable.h18
-rw-r--r--arch/powerpc/include/asm/book3s/64/radix.h4
-rw-r--r--arch/powerpc/include/asm/pci-bridge.h3
-rw-r--r--arch/powerpc/kernel/paca.c3
-rw-r--r--arch/powerpc/kernel/pci-common.c3
-rw-r--r--arch/powerpc/kernel/vdso.c2
-rw-r--r--arch/powerpc/mm/hugetlbpage-hash64.c25
-rw-r--r--arch/powerpc/mm/hugetlbpage-radix.c17
-rw-r--r--arch/powerpc/mm/mmu_context_iommu.c145
-rw-r--r--arch/powerpc/mm/numa.c16
-rw-r--r--arch/powerpc/mm/pgtable-book3s64.c25
-rw-r--r--arch/powerpc/mm/pgtable-radix.c18
-rw-r--r--arch/powerpc/platforms/powernv/memtrace.c5
-rw-r--r--arch/riscv/kernel/vdso.c1
-rw-r--r--arch/s390/include/asm/pgtable.h5
-rw-r--r--arch/s390/kernel/vdso.c2
-rw-r--r--arch/s390/mm/pgtable.c8
-rw-r--r--arch/sh/kernel/syscalls/syscalltbl.sh4
-rw-r--r--arch/sh/kernel/syscalls_32.S2
-rw-r--r--arch/sparc/kernel/pci_fire.c3
-rw-r--r--arch/sparc/kernel/pci_schizo.c3
-rw-r--r--arch/sparc/kernel/psycho_common.c3
-rw-r--r--arch/sparc/kernel/sbus.c3
-rw-r--r--arch/sparc/mm/init_64.c6
-rw-r--r--arch/x86/include/asm/paravirt.h13
-rw-r--r--arch/x86/include/asm/paravirt_types.h5
-rw-r--r--arch/x86/include/asm/pci.h3
-rw-r--r--arch/x86/include/asm/uaccess.h24
-rw-r--r--arch/x86/kernel/apic/x2apic_uv_x.c7
-rw-r--r--arch/x86/kernel/setup_percpu.c2
-rw-r--r--arch/x86/kernel/smpboot.c3
-rw-r--r--arch/x86/lib/usercopy_32.c8
-rw-r--r--arch/x86/mm/numa.c4
-rw-r--r--arch/x86/xen/mmu.h4
-rw-r--r--arch/x86/xen/mmu_pv.c8
48 files changed, 286 insertions, 268 deletions
diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h
index e6e13a85796a..5a77a40567fa 100644
--- a/arch/alpha/include/asm/topology.h
+++ b/arch/alpha/include/asm/topology.h
@@ -4,6 +4,7 @@
#include <linux/smp.h>
#include <linux/threads.h>
+#include <linux/numa.h>
#include <asm/machvec.h>
#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/arm64/Kconfig b/arch/arm64/Kconfig
index a4168d366127..cfbf307d6dc4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1467,6 +1467,10 @@ config SYSVIPC_COMPAT
def_bool y
depends on COMPAT && SYSVIPC
+config ARCH_ENABLE_HUGEPAGE_MIGRATION
+ def_bool y
+ depends on HUGETLB_PAGE && MIGRATION
+
menu "Power management options"
source "kernel/power/Kconfig"
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index fb6609875455..c6a07a3b433e 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -20,6 +20,11 @@
#include <asm/page.h>
+#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
+#define arch_hugetlb_migration_supported arch_hugetlb_migration_supported
+extern bool arch_hugetlb_migration_supported(struct hstate *h);
+#endif
+
#define __HAVE_ARCH_HUGE_PTEP_GET
static inline pte_t huge_ptep_get(pte_t *ptep)
{
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 0c656850eeea..b01ef0180a03 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -80,11 +80,7 @@
*/
#ifdef CONFIG_KASAN
#define KASAN_SHADOW_SIZE (UL(1) << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT))
-#ifdef CONFIG_KASAN_EXTRA
-#define KASAN_THREAD_SHIFT 2
-#else
#define KASAN_THREAD_SHIFT 1
-#endif /* CONFIG_KASAN_EXTRA */
#else
#define KASAN_SHADOW_SIZE (0)
#define KASAN_THREAD_SHIFT 0
diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index aa9c94113700..66b5d697d943 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -321,7 +321,7 @@ void crash_post_resume(void)
* but does not hold any data of loaded kernel image.
*
* Note that all the pages in crash dump kernel memory have been initially
- * marked as Reserved in kexec_reserve_crashkres_pages().
+ * marked as Reserved as memory was allocated via memblock_reserve().
*
* In hibernation, the pages which are Reserved and yet "nosave" are excluded
* from the hibernation iamge. crash_is_nosave() does thich check for crash
@@ -361,7 +361,6 @@ void crash_free_reserved_phys_range(unsigned long begin, unsigned long end)
for (addr = begin; addr < end; addr += PAGE_SIZE) {
page = phys_to_page(addr);
- ClearPageReserved(page);
free_reserved_page(page);
}
}
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 28cbc22d7e30..6b4a47b3adf4 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -27,6 +27,26 @@
#include <asm/tlbflush.h>
#include <asm/pgalloc.h>
+#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
+bool arch_hugetlb_migration_supported(struct hstate *h)
+{
+ size_t pagesize = huge_page_size(h);
+
+ switch (pagesize) {
+#ifdef CONFIG_ARM64_4K_PAGES
+ case PUD_SIZE:
+#endif
+ case PMD_SIZE:
+ case CONT_PMD_SIZE:
+ case CONT_PTE_SIZE:
+ return true;
+ }
+ pr_warn("%s: unrecognized huge page size 0x%lx\n",
+ __func__, pagesize);
+ return false;
+}
+#endif
+
int pmd_huge(pmd_t pmd)
{
return pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT);
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 7205a9085b4d..c38976b70069 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -118,35 +118,10 @@ static void __init reserve_crashkernel(void)
crashk_res.start = crash_base;
crashk_res.end = crash_base + crash_size - 1;
}
-
-static void __init kexec_reserve_crashkres_pages(void)
-{
-#ifdef CONFIG_HIBERNATION
- phys_addr_t addr;
- struct page *page;
-
- if (!crashk_res.end)
- return;
-
- /*
- * To reduce the size of hibernation image, all the pages are
- * marked as Reserved initially.
- */
- for (addr = crashk_res.start; addr < (crashk_res.end + 1);
- addr += PAGE_SIZE) {
- page = phys_to_page(addr);
- SetPageReserved(page);
- }
-#endif
-}
#else
static void __init reserve_crashkernel(void)
{
}
-
-static void __init kexec_reserve_crashkres_pages(void)
-{
-}
#endif /* CONFIG_KEXEC_CORE */
#ifdef CONFIG_CRASH_DUMP
@@ -586,8 +561,6 @@ void __init mem_init(void)
/* this will put all unused low memory onto the freelists */
memblock_free_all();
- kexec_reserve_crashkres_pages();
-
mem_init_print_info(NULL);
/*
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index ae34e3a1cef1..7a0a555b366a 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -120,7 +120,7 @@ static void __init setup_node_to_cpumask_map(void)
}
/* cpumask_of_node() will now work */
- pr_debug("Node to cpumask map for %d nodes\n", nr_node_ids);
+ pr_debug("Node to cpumask map for %u nodes\n", nr_node_ids);
}
/*
diff --git a/arch/ia64/kernel/numa.c b/arch/ia64/kernel/numa.c
index 92c376279c6d..1315da6c7aeb 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/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 46bff1661836..7a969f4c3534 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -583,17 +583,6 @@ pfm_put_task(struct task_struct *task)
if (task != current) put_task_struct(task);
}
-static inline void
-pfm_reserve_page(unsigned long a)
-{
- SetPageReserved(vmalloc_to_page((void *)a));
-}
-static inline void
-pfm_unreserve_page(unsigned long a)
-{
- ClearPageReserved(vmalloc_to_page((void*)a));
-}
-
static inline unsigned long
pfm_protect_ctx_ctxsw(pfm_context_t *x)
{
@@ -816,44 +805,6 @@ pfm_reset_msgq(pfm_context_t *ctx)
DPRINT(("ctx=%p msgq reset\n", ctx));
}
-static void *
-pfm_rvmalloc(unsigned long size)
-{
- void *mem;
- unsigned long addr;
-
- size = PAGE_ALIGN(size);
- mem = vzalloc(size);
- if (mem) {
- //printk("perfmon: CPU%d pfm_rvmalloc(%ld)=%p\n", smp_processor_id(), size, mem);
- addr = (unsigned long)mem;
- while (size > 0) {
- pfm_reserve_page(addr);
- addr+=PAGE_SIZE;
- size-=PAGE_SIZE;
- }
- }
- return mem;
-}
-
-static void
-pfm_rvfree(void *mem, unsigned long size)
-{
- unsigned long addr;
-
- if (mem) {
- DPRINT(("freeing physical buffer @%p size=%lu\n", mem, size));
- addr = (unsigned long) mem;
- while ((long) size > 0) {
- pfm_unreserve_page(addr);
- addr+=PAGE_SIZE;
- size-=PAGE_SIZE;
- }
- vfree(mem);
- }
- return;
-}
-
static pfm_context_t *
pfm_context_alloc(int ctx_flags)
{
@@ -1498,7 +1449,7 @@ pfm_free_smpl_buffer(pfm_context_t *ctx)
/*
* free the buffer
*/
- pfm_rvfree(ctx->ctx_smpl_hdr, ctx->ctx_smpl_size);
+ vfree(ctx->ctx_smpl_hdr);
ctx->ctx_smpl_hdr = NULL;
ctx->ctx_smpl_size = 0UL;
@@ -2137,7 +2088,7 @@ doit:
* All memory free operations (especially for vmalloc'ed memory)
* MUST be done with interrupts ENABLED.
*/
- if (smpl_buf_addr) pfm_rvfree(smpl_buf_addr, smpl_buf_size);
+ vfree(smpl_buf_addr);
/*
* return the memory used by the context
@@ -2266,10 +2217,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
/*
* We do the easy to undo allocations first.
- *
- * pfm_rvmalloc(), clears the buffer, so there is no leak
*/
- smpl_buf = pfm_rvmalloc(size);
+ smpl_buf = vzalloc(size);
if (smpl_buf == NULL) {
DPRINT(("Can't allocate sampling buffer\n"));
return -ENOMEM;
@@ -2346,7 +2295,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
error:
vm_area_free(vma);
error_kmem:
- pfm_rvfree(smpl_buf, size);
+ vfree(smpl_buf);
return -ENOMEM;
}
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 8a965784340c..f9c36750c6a4 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/m68k/mm/memory.c b/arch/m68k/mm/memory.c
index b86a2e21693b..227c04fe60d2 100644
--- a/arch/m68k/mm/memory.c
+++ b/arch/m68k/mm/memory.c
@@ -51,7 +51,7 @@ void __init init_pointer_table(unsigned long ptable)
pr_debug("init_pointer_table: %lx, %x\n", ptable, PD_MARKBITS(dp));
/* unreserve the page so it's possible to free that page */
- PD_PAGE(dp)->flags &= ~(1 << PG_reserved);
+ __ClearPageReserved(PD_PAGE(dp));
init_page_count(PD_PAGE(dp));
return;
diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h
index 5b0177733994..66c1e4f88d65 100644
--- a/arch/powerpc/include/asm/book3s/64/hugetlb.h
+++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h
@@ -13,6 +13,10 @@ radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags);
+extern void radix__huge_ptep_modify_prot_commit(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ pte_t old_pte, pte_t pte);
+
static inline int hstate_get_psize(struct hstate *hstate)
{
unsigned long shift;
@@ -42,4 +46,12 @@ static inline bool gigantic_page_supported(void)
/* hugepd entry valid bit */
#define HUGEPD_VAL_BITS (0x8000000000000000UL)
+#define huge_ptep_modify_prot_start huge_ptep_modify_prot_start
+extern pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep);
+
+#define huge_ptep_modify_prot_commit huge_ptep_modify_prot_commit
+extern void huge_ptep_modify_prot_commit(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ pte_t old_pte, pte_t new_pte);
#endif
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index d8c8d7c9df15..868fcaf56f6b 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1306,6 +1306,24 @@ static inline int pud_pfn(pud_t pud)
BUILD_BUG();
return 0;
}
+#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
+pte_t ptep_modify_prot_start(struct vm_area_struct *, unsigned long, pte_t *);
+void ptep_modify_prot_commit(struct vm_area_struct *, unsigned long,
+ pte_t *, pte_t, pte_t);
+
+/*
+ * Returns true for a R -> RW upgrade of pte
+ */
+static inline bool is_pte_rw_upgrade(unsigned long old_val, unsigned long new_val)
+{
+ if (!(old_val & _PAGE_READ))
+ return false;
+
+ if ((!(old_val & _PAGE_WRITE)) && (new_val & _PAGE_WRITE))
+ return true;
+
+ return false;
+}
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ */
diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h
index 7d1a3d1543fc..5ab134eeed20 100644
--- a/arch/powerpc/include/asm/book3s/64/radix.h
+++ b/arch/powerpc/include/asm/book3s/64/radix.h
@@ -127,6 +127,10 @@ extern void radix__ptep_set_access_flags(struct vm_area_struct *vma, pte_t *ptep
pte_t entry, unsigned long address,
int psize);
+extern void radix__ptep_modify_prot_commit(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ pte_t old_pte, pte_t pte);
+
static inline unsigned long __radix_pte_update(pte_t *ptep, unsigned long clr,
unsigned long set)
{
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index aee4fcc24990..77fc21278fa2 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -10,6 +10,7 @@
#include <linux/pci.h>
#include <linux/list.h>
#include <linux/ioport.h>
+#include <linux/numa.h>
struct device_node;
@@ -265,7 +266,7 @@ 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 913bfca09c4f..b8480127793d 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -11,6 +11,7 @@
#include <linux/export.h>
#include <linux/memblock.h>
#include <linux/sched/task.h>
+#include <linux/numa.h>
#include <asm/lppaca.h>
#include <asm/paca.h>
@@ -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 88e4f69a09e5..4538e8ddde80 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -32,6 +32,7 @@
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/vgaarb.h>
+#include <linux/numa.h>
#include <asm/processor.h>
#include <asm/io.h>
@@ -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/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 7725a9714736..a31b6234fcd7 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -798,7 +798,6 @@ static int __init vdso_init(void)
BUG_ON(vdso32_pagelist == NULL);
for (i = 0; i < vdso32_pages; i++) {
struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
- ClearPageReserved(pg);
get_page(pg);
vdso32_pagelist[i] = pg;
}
@@ -812,7 +811,6 @@ static int __init vdso_init(void)
BUG_ON(vdso64_pagelist == NULL);
for (i = 0; i < vdso64_pages; i++) {
struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
- ClearPageReserved(pg);
get_page(pg);
vdso64_pagelist[i] = pg;
}
diff --git a/arch/powerpc/mm/hugetlbpage-hash64.c b/arch/powerpc/mm/hugetlbpage-hash64.c
index 2e6a8f9345d3..367ce3a4a503 100644
--- a/arch/powerpc/mm/hugetlbpage-hash64.c
+++ b/arch/powerpc/mm/hugetlbpage-hash64.c
@@ -121,3 +121,28 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
*ptep = __pte(new_pte & ~H_PAGE_BUSY);
return 0;
}
+
+pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep)
+{
+ unsigned long pte_val;
+ /*
+ * Clear the _PAGE_PRESENT so that no hardware parallel update is
+ * possible. Also keep the pte_present true so that we don't take
+ * wrong fault.
+ */
+ pte_val = pte_update(vma->vm_mm, addr, ptep,
+ _PAGE_PRESENT, _PAGE_INVALID, 1);
+
+ return __pte(pte_val);
+}
+
+void huge_ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
+ pte_t *ptep, pte_t old_pte, pte_t pte)
+{
+
+ if (radix_enabled())
+ return radix__huge_ptep_modify_prot_commit(vma, addr, ptep,
+ old_pte, pte);
+ set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+}
diff --git a/arch/powerpc/mm/hugetlbpage-radix.c b/arch/powerpc/mm/hugetlbpage-radix.c
index 2486bee0f93e..11d9ea28a816 100644
--- a/arch/powerpc/mm/hugetlbpage-radix.c
+++ b/arch/powerpc/mm/hugetlbpage-radix.c
@@ -90,3 +90,20 @@ radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
return vm_unmapped_area(&info);
}
+
+void radix__huge_ptep_modify_prot_commit(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ pte_t old_pte, pte_t pte)
+{
+ struct mm_struct *mm = vma->vm_mm;
+
+ /*
+ * To avoid NMMU hang while relaxing access we need to flush the tlb before
+ * we set the new value.
+ */
+ if (is_pte_rw_upgrade(pte_val(old_pte), pte_val(pte)) &&
+ (atomic_read(&mm->context.copros) > 0))
+ radix__flush_hugetlb_page(vma, addr);
+
+ set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+}
diff --git a/arch/powerpc/mm/mmu_context_iommu.c b/arch/powerpc/mm/mmu_context_iommu.c
index a712a650a8b6..e7a9c4f6bfca 100644
--- a/arch/powerpc/mm/mmu_context_iommu.c
+++ b/arch/powerpc/mm/mmu_context_iommu.c
@@ -21,6 +21,7 @@
#include <linux/sizes.h>
#include <asm/mmu_context.h>
#include <asm/pte-walk.h>
+#include <linux/mm_inline.h>
static DEFINE_MUTEX(mem_list_mutex);
@@ -34,8 +35,18 @@ struct mm_iommu_table_group_mem_t {
atomic64_t mapped;
unsigned int pageshift;
u64 ua; /* userspace address */
- u64 entries; /* number of entries in hpas[] */
- u64 *hpas; /* vmalloc'ed */
+ u64 entries; /* number of entries in hpas/hpages[] */
+ /*
+ * in mm_iommu_get we temporarily use this to store
+ * struct page address.
+ *
+ * We need to convert ua to hpa in real mode. Make it
+ * simpler by storing physical address.
+ */
+ union {
+ struct page **hpages; /* vmalloc'ed */
+ phys_addr_t *hpas;
+ };
#define MM_IOMMU_TABLE_INVALID_HPA ((uint64_t)-1)
u64 dev_hpa; /* Device memory base address */
};
@@ -80,64 +91,13 @@ bool mm_iommu_preregistered(struct mm_struct *mm)
}
EXPORT_SYMBOL_GPL(mm_iommu_preregistered);
-/*
- * Taken from alloc_migrate_target with changes to remove CMA allocations
- */
-struct page *new_iommu_non_cma_page(struct page *page, unsigned long private)
-{
- gfp_t gfp_mask = GFP_USER;
- struct page *new_page;
-
- if (PageCompound(page))
- return NULL;
-
- if (PageHighMem(page))
- gfp_mask |= __GFP_HIGHMEM;
-
- /*
- * We don't want the allocation to force an OOM if possibe
- */
- new_page = alloc_page(gfp_mask | __GFP_NORETRY | __GFP_NOWARN);
- return new_page;
-}
-
-static int mm_iommu_move_page_from_cma(struct page *page)
-{
- int ret = 0;
- LIST_HEAD(cma_migrate_pages);
-
- /* Ignore huge pages for now */
- if (PageCompound(page))
- return -EBUSY;
-
- lru_add_drain();
- ret = isolate_lru_page(page);
- if (ret)
- return ret;
-
- list_add(&page->lru, &cma_migrate_pages);
- put_page(page); /* Drop the gup reference */
-
- ret = migrate_pages(&cma_migrate_pages, new_iommu_non_cma_page,
- NULL, 0, MIGRATE_SYNC, MR_CONTIG_RANGE);
- if (ret) {
- if (!list_empty(&cma_migrate_pages))
- putback_movable_pages(&cma_migrate_pages);
- }
-
- return 0;
-}
-
static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua,
- unsigned long entries, unsigned long dev_hpa,
- struct mm_iommu_table_group_mem_t **pmem)
+ unsigned long entries, unsigned long dev_hpa,
+ struct mm_iommu_table_group_mem_t **pmem)
{
struct mm_iommu_table_group_mem_t *mem;
- long i, j, ret = 0, locked_entries = 0;
+ long i, ret, locked_entries = 0;
unsigned int pageshift;
- unsigned long flags;
- unsigned long cur_ua;
- struct page *page = NULL;
mutex_lock(&mem_list_mutex);
@@ -187,62 +147,43 @@ static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua,
goto unlock_exit;
}
+ down_read(&mm->mmap_sem);
+ ret = get_user_pages_longterm(ua, entries, FOLL_WRITE, mem->hpages, NULL);
+ up_read(&mm->mmap_sem);
+ if (ret != entries) {
+ /* free the reference taken */
+ for (i = 0; i < ret; i++)
+ put_page(mem->hpages[i]);
+
+ vfree(mem->hpas);
+ kfree(mem);
+ ret = -EFAULT;
+ goto unlock_exit;
+ }
+
+ pageshift = PAGE_SHIFT;
for (i = 0; i < entries; ++i) {
- cur_ua = ua + (i << PAGE_SHIFT);
- if (1 != get_user_pages_fast(cur_ua,
- 1/* pages */, 1/* iswrite */, &page)) {
- ret = -EFAULT;
- for (j = 0; j < i; ++j)
- put_page(pfn_to_page(mem->hpas[j] >>
- PAGE_SHIFT));
- vfree(mem->hpas);
- kfree(mem);
- goto unlock_exit;
- }
+ struct page *page = mem->hpages[i];
+
/*
- * If we get a page from the CMA zone, since we are going to
- * be pinning these entries, we might as well move them out
- * of the CMA zone if possible. NOTE: faulting in + migration
- * can be expensive. Batching can be considered later
+ * Allow to use larger than 64k IOMMU pages. Only do that
+ * if we are backed by hugetlb.
*/
- if (is_migrate_cma_page(page)) {
- if (mm_iommu_move_page_from_cma(page))
- goto populate;
- if (1 != get_user_pages_fast(cur_ua,
- 1/* pages */, 1/* iswrite */,
- &page)) {
- ret = -EFAULT;
- for (j = 0; j < i; ++j)
- put_page(pfn_to_page(mem->hpas[j] >>
- PAGE_SHIFT));
- vfree(mem->hpas);
- kfree(mem);
- goto unlock_exit;
- }
- }
-populate:
- pageshift = PAGE_SHIFT;
- if (mem->pageshift > PAGE_SHIFT && PageCompound(page)) {
- pte_t *pte;
+ if ((mem->pageshift > PAGE_SHIFT) && PageHuge(page)) {
struct page *head = compound_head(page);
- unsigned int compshift = compound_order(head);
- unsigned int pteshift;
-
- local_irq_save(flags); /* disables as well */
- pte = find_linux_pte(mm->pgd, cur_ua, NULL, &pteshift);
-
- /* Double check it is still the same pinned page */
- if (pte && pte_page(*pte) == head &&
- pteshift == compshift + PAGE_SHIFT)
- pageshift = max_t(unsigned int, pteshift,
- PAGE_SHIFT);
- local_irq_restore(flags);
+
+ pageshift = compound_order(head) + PAGE_SHIFT;
}
mem->pageshift = min(mem->pageshift, pageshift);
+ /*
+ * We don't need struct page reference any more, switch
+ * to physical address.
+ */
mem->hpas[i] = page_to_pfn(page) << PAGE_SHIFT;
}
good_exit:
+ ret = 0;
atomic64_set(&mem->mapped, 1);
mem->used = 1;
mem->ua = ua;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 87f0dd004295..df1e11ebbabb 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -84,7 +84,7 @@ static void __init setup_node_to_cpumask_map(void)
alloc_bootmem_cpumask_var(&node_to_cpumask_map[node]);
/* cpumask_of_node() will now work */
- dbg("Node to cpumask map for %d nodes\n", nr_node_ids);
+ dbg("Node to cpumask map for %u nodes\n", nr_node_ids);
}
static int __init fake_numa_create_new_node(unsigned long end_pfn,
@@ -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 @@ out:
*/
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/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index ecd31569a120..e7da590c7a78 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -401,6 +401,31 @@ void arch_report_meminfo(struct seq_file *m)
}
#endif /* CONFIG_PROC_FS */
+pte_t ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr,
+ pte_t *ptep)
+{
+ unsigned long pte_val;
+
+ /*
+ * Clear the _PAGE_PRESENT so that no hardware parallel update is
+ * possible. Also keep the pte_present true so that we don't take
+ * wrong fault.
+ */
+ pte_val = pte_update(vma->vm_mm, addr, ptep, _PAGE_PRESENT, _PAGE_INVALID, 0);
+
+ return __pte(pte_val);
+
+}
+
+void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
+ pte_t *ptep, pte_t old_pte, pte_t pte)
+{
+ if (radix_enabled())
+ return radix__ptep_modify_prot_commit(vma, addr,
+ ptep, old_pte, pte);
+ set_pte_at(vma->vm_mm, addr, ptep, pte);
+}
+
/*
* For hash translation mode, we use the deposited table to store hash slot
* information and they are stored at PTRS_PER_PMD offset from related pmd
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index 931156069a81..dced3cd241c2 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -1063,3 +1063,21 @@ void radix__ptep_set_access_flags(struct vm_area_struct *vma, pte_t *ptep,
}
/* See ptesync comment in radix__set_pte_at */
}
+
+void radix__ptep_modify_prot_commit(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ pte_t old_pte, pte_t pte)
+{
+ struct mm_struct *mm = vma->vm_mm;
+
+ /*
+ * To avoid NMMU hang while relaxing access we need to flush the tlb before
+ * we set the new value. We need to do this only for radix, because hash
+ * translation does flush when updating the linux pte.
+ */
+ if (is_pte_rw_upgrade(pte_val(old_pte), pte_val(pte)) &&
+ (atomic_read(&mm->context.copros) > 0))
+ radix__flush_tlb_page(vma, addr);
+
+ set_pte_at(mm, addr, ptep, pte);
+}
diff --git a/arch/powerpc/platforms/powernv/memtrace.c b/arch/powerpc/platforms/powernv/memtrace.c
index 84d038ed3882..248a38ad25c7 100644
--- a/arch/powerpc/platforms/powernv/memtrace.c
+++ b/arch/powerpc/platforms/powernv/memtrace.c
@@ -20,6 +20,7 @@
#include <linux/slab.h>
#include <linux/memory.h>
#include <linux/memory_hotplug.h>
+#include <linux/numa.h>
#include <asm/machdep.h>
#include <asm/debugfs.h>
@@ -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/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c
index 582cb153eb24..0cd044122234 100644
--- a/arch/riscv/kernel/vdso.c
+++ b/arch/riscv/kernel/vdso.c
@@ -54,7 +54,6 @@ static int __init vdso_init(void)
struct page *pg;
pg = virt_to_page(vdso_start + (i << PAGE_SHIFT));
- ClearPageReserved(pg);
vdso_pagelist[i] = pg;
}
vdso_pagelist[i] = virt_to_page(vdso_data);
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 063732414dfb..76dc344edb8c 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1069,8 +1069,9 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
}
#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
-pte_t ptep_modify_prot_start(struct mm_struct *, unsigned long, pte_t *);
-void ptep_modify_prot_commit(struct mm_struct *, unsigned long, pte_t *, pte_t);
+pte_t ptep_modify_prot_start(struct vm_area_struct *, unsigned long, pte_t *);
+void ptep_modify_prot_commit(struct vm_area_struct *, unsigned long,
+ pte_t *, pte_t, pte_t);
#define __HAVE_ARCH_PTEP_CLEAR_FLUSH
static inline pte_t ptep_clear_flush(struct vm_area_struct *vma,
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 4ff354887db4..e7920a68a12e 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -291,7 +291,6 @@ static int __init vdso_init(void)
BUG_ON(vdso32_pagelist == NULL);
for (i = 0; i < vdso32_pages - 1; i++) {
struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
- ClearPageReserved(pg);
get_page(pg);
vdso32_pagelist[i] = pg;
}
@@ -309,7 +308,6 @@ static int __init vdso_init(void)
BUG_ON(vdso64_pagelist == NULL);
for (i = 0; i < vdso64_pages - 1; i++) {
struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
- ClearPageReserved(pg);
get_page(pg);
vdso64_pagelist[i] = pg;
}
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 689b66f29fc6..8485d6dc2754 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -301,12 +301,13 @@ pte_t ptep_xchg_lazy(struct mm_struct *mm, unsigned long addr,
}
EXPORT_SYMBOL(ptep_xchg_lazy);
-pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
+pte_t ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep)
{
pgste_t pgste;
pte_t old;
int nodat;
+ struct mm_struct *mm = vma->vm_mm;
preempt_disable();
pgste = ptep_xchg_start(mm, addr, ptep);
@@ -319,10 +320,11 @@ pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
return old;
}
-void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
+void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
+ pte_t *ptep, pte_t old_pte, pte_t pte)
{
pgste_t pgste;
+ struct mm_struct *mm = vma->vm_mm;
if (!MACHINE_HAS_NX)
pte_val(pte) &= ~_PAGE_NOEXEC;
diff --git a/arch/sh/kernel/syscalls/syscalltbl.sh b/arch/sh/kernel/syscalls/syscalltbl.sh
index 85d78d9309ad..904b8e6e625d 100644
--- a/arch/sh/kernel/syscalls/syscalltbl.sh
+++ b/arch/sh/kernel/syscalls/syscalltbl.sh
@@ -13,10 +13,10 @@ emit() {
t_entry="$3"
while [ $t_nxt -lt $t_nr ]; do
- printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
+ printf "__SYSCALL(%s,sys_ni_syscall)\n" "${t_nxt}"
t_nxt=$((t_nxt+1))
done
- printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
+ printf "__SYSCALL(%s,%s)\n" "${t_nxt}" "${t_entry}"
}
grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index 96e9c54a07f5..bd1a9c544767 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -10,7 +10,7 @@
#include <linux/sys.h>
#include <linux/linkage.h>
-#define __SYSCALL(nr, entry, nargs) .long entry
+#define __SYSCALL(nr, entry) .long entry
.data
ENTRY(sys_call_table)
#include <asm/syscall_table.h>
diff --git a/arch/sparc/kernel/pci_fire.c b/arch/sparc/kernel/pci_fire.c
index be71ae086622..0ca08d455e80 100644
--- a/arch/sparc/kernel/pci_fire.c
+++ b/arch/sparc/kernel/pci_fire.c
@@ -11,6 +11,7 @@
#include <linux/export.h>
#include <linux/irq.h>
#include <linux/of_device.h>
+#include <linux/numa.h>
#include <asm/prom.h>
#include <asm/irq.h>
@@ -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 934b97c72f7c..421aba00e6b0 100644
--- a/arch/sparc/kernel/pci_schizo.c
+++ b/arch/sparc/kernel/pci_schizo.c
@@ -12,6 +12,7 @@
#include <linux/export.h>
#include <linux/interrupt.h>
#include <linux/of_device.h>
+#include <linux/numa.h>
#include <asm/iommu.h>
#include <asm/irq.h>
@@ -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 81aa91e5c0e6..e90bcb6bad7f 100644
--- a/arch/sparc/kernel/psycho_common.c
+++ b/arch/sparc/kernel/psycho_common.c
@@ -5,6 +5,7 @@
*/
#include <linux/kernel.h>
#include <linux/interrupt.h>
+#include <linux/numa.h>
#include <asm/upa.h>
@@ -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 41c5deb581b8..32141e1006c4 100644
--- a/arch/sparc/kernel/sbus.c
+++ b/arch/sparc/kernel/sbus.c
@@ -15,6 +15,7 @@
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/numa.h>
#include <asm/page.h>
#include <asm/io.h>
@@ -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 b4221d3727d0..9e6bd868ba6f 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/paravirt.h b/arch/x86/include/asm/paravirt.h
index a97f28d914d5..c25c38a05c1c 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -422,25 +422,26 @@ static inline pgdval_t pgd_val(pgd_t pgd)
}
#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
-static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
+static inline pte_t ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep)
{
pteval_t ret;
- ret = PVOP_CALL3(pteval_t, mmu.ptep_modify_prot_start, mm, addr, ptep);
+ ret = PVOP_CALL3(pteval_t, mmu.ptep_modify_prot_start, vma, addr, ptep);
return (pte_t) { .pte = ret };
}
-static inline void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
+static inline void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
+ pte_t *ptep, pte_t old_pte, pte_t pte)
{
+
if (sizeof(pteval_t) > sizeof(long))
/* 5 arg words */
- pv_ops.mmu.ptep_modify_prot_commit(mm, addr, ptep, pte);
+ pv_ops.mmu.ptep_modify_prot_commit(vma, addr, ptep, pte);
else
PVOP_VCALL4(mmu.ptep_modify_prot_commit,
- mm, addr, ptep, pte.pte);
+ vma, addr, ptep, pte.pte);
}
static inline void set_pte(pte_t *ptep, pte_t pte)
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 488c59686a73..2474e434a6f7 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -55,6 +55,7 @@ struct task_struct;
struct cpumask;
struct flush_tlb_info;
struct mmu_gather;
+struct vm_area_struct;
/*
* Wrapper type for pointers to code which uses the non-standard
@@ -254,9 +255,9 @@ struct pv_mmu_ops {
pte_t *ptep, pte_t pteval);
void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
- pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr,
+ pte_t (*ptep_modify_prot_start)(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep);
- void (*ptep_modify_prot_commit)(struct mm_struct *mm, unsigned long addr,
+ void (*ptep_modify_prot_commit)(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep, pte_t pte);
struct paravirt_callee_save pte_val;
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 662963681ea6..e662f987dfa2 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -7,6 +7,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/scatterlist.h>
+#include <linux/numa.h>
#include <asm/io.h>
#include <asm/pat.h>
#include <asm/x86_init.h>
@@ -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/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 5e49a0acb5ee..62004d22524a 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -75,7 +75,7 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
#endif
/**
- * access_ok: - Checks if a user space pointer is valid
+ * access_ok - Checks if a user space pointer is valid
* @addr: User space pointer to start of block to check
* @size: Size of block to check
*
@@ -84,12 +84,12 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
*
* Checks if a pointer to a block of memory in user space is valid.
*
- * Returns true (nonzero) if the memory block may be valid, false (zero)
- * if it is definitely invalid.
- *
* Note that, depending on architecture, this function probably just
* checks that the pointer is in the user space range - after calling
* this function, memory access functions may still return -EFAULT.
+ *
+ * Return: true (nonzero) if the memory block may be valid, false (zero)
+ * if it is definitely invalid.
*/
#define access_ok(addr, size) \
({ \
@@ -134,7 +134,7 @@ extern int __get_user_bad(void);
__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
/**
- * get_user: - Get a simple variable from user space.
+ * get_user - Get a simple variable from user space.
* @x: Variable to store result.
* @ptr: Source address, in user space.
*
@@ -148,7 +148,7 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
* @ptr must have pointer-to-simple-variable type, and the result of
* dereferencing @ptr must be assignable to @x without a cast.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
* On error, the variable @x is set to zero.
*/
/*
@@ -226,7 +226,7 @@ extern void __put_user_4(void);
extern void __put_user_8(void);
/**
- * put_user: - Write a simple value into user space.
+ * put_user - Write a simple value into user space.
* @x: Value to copy to user space.
* @ptr: Destination address, in user space.
*
@@ -240,7 +240,7 @@ extern void __put_user_8(void);
* @ptr must have pointer-to-simple-variable type, and @x must be assignable
* to the result of dereferencing @ptr.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
*/
#define put_user(x, ptr) \
({ \
@@ -502,7 +502,7 @@ struct __large_struct { unsigned long buf[100]; };
} while (0)
/**
- * __get_user: - Get a simple variable from user space, with less checking.
+ * __get_user - Get a simple variable from user space, with less checking.
* @x: Variable to store result.
* @ptr: Source address, in user space.
*
@@ -519,7 +519,7 @@ struct __large_struct { unsigned long buf[100]; };
* Caller must check the pointer with access_ok() before calling this
* function.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
* On error, the variable @x is set to zero.
*/
@@ -527,7 +527,7 @@ struct __large_struct { unsigned long buf[100]; };
__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
/**
- * __put_user: - Write a simple value into user space, with less checking.
+ * __put_user - Write a simple value into user space, with less checking.
* @x: Value to copy to user space.
* @ptr: Destination address, in user space.
*
@@ -544,7 +544,7 @@ struct __large_struct { unsigned long buf[100]; };
* Caller must check the pointer with access_ok() before calling this
* function.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
*/
#define __put_user(x, ptr) \
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index a555da094157..1e225528f0d7 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -27,6 +27,7 @@
#include <linux/crash_dump.h>
#include <linux/reboot.h>
#include <linux/memory.h>
+#include <linux/numa.h>
#include <asm/uv/uv_mmrs.h>
#include <asm/uv/uv_hub.h>
@@ -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/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index e8796fcd7e5a..13af08827eef 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -171,7 +171,7 @@ void __init setup_per_cpu_areas(void)
unsigned long delta;
int rc;
- pr_info("NR_CPUS:%d nr_cpumask_bits:%d nr_cpu_ids:%u nr_node_ids:%d\n",
+ pr_info("NR_CPUS:%d nr_cpumask_bits:%d nr_cpu_ids:%u nr_node_ids:%u\n",
NR_CPUS, nr_cpumask_bits, nr_cpu_ids, nr_node_ids);
/*
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index ccd1f2a8e557..c91ff9f9fe8a 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -56,6 +56,7 @@
#include <linux/stackprotector.h>
#include <linux/gfp.h>
#include <linux/cpuidle.h>
+#include <linux/numa.h>
#include <asm/acpi.h>
#include <asm/desc.h>
@@ -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/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index bfd94e7812fc..7d290777246d 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -54,13 +54,13 @@ do { \
} while (0)
/**
- * clear_user: - Zero a block of memory in user space.
+ * clear_user - Zero a block of memory in user space.
* @to: Destination address, in user space.
* @n: Number of bytes to zero.
*
* Zero a block of memory in user space.
*
- * Returns number of bytes that could not be cleared.
+ * Return: number of bytes that could not be cleared.
* On success, this will be zero.
*/
unsigned long
@@ -74,14 +74,14 @@ clear_user(void __user *to, unsigned long n)
EXPORT_SYMBOL(clear_user);
/**
- * __clear_user: - Zero a block of memory in user space, with less checking.
+ * __clear_user - Zero a block of memory in user space, with less checking.
* @to: Destination address, in user space.
* @n: Number of bytes to zero.
*
* Zero a block of memory in user space. Caller must check
* the specified block with access_ok() before calling this function.
*
- * Returns number of bytes that could not be cleared.
+ * Return: number of bytes that could not be cleared.
* On success, this will be zero.
*/
unsigned long
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 1308f5408bf7..12c1b7a83ed7 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -123,7 +123,7 @@ void __init setup_node_to_cpumask_map(void)
alloc_bootmem_cpumask_var(&node_to_cpumask_map[node]);
/* cpumask_of_node() will now work */
- pr_debug("Node to cpumask map for %d nodes\n", nr_node_ids);
+ pr_debug("Node to cpumask map for %u nodes\n", nr_node_ids);
}
static int __init numa_add_memblk_to(int nid, u64 start, u64 end,
@@ -866,7 +866,7 @@ const struct cpumask *cpumask_of_node(int node)
{
if (node >= nr_node_ids) {
printk(KERN_WARNING
- "cpumask_of_node(%d): node > nr_node_ids(%d)\n",
+ "cpumask_of_node(%d): node > nr_node_ids(%u)\n",
node, nr_node_ids);
dump_stack();
return cpu_none_mask;
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h
index a7e47cf7ec6c..6e4c6bd62203 100644
--- a/arch/x86/xen/mmu.h
+++ b/arch/x86/xen/mmu.h
@@ -17,8 +17,8 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn);
void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
-pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
-void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
+pte_t xen_ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep);
+void xen_ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep, pte_t pte);
unsigned long xen_read_cr2_direct(void);
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 0f4fe206dcc2..856a85814f00 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -306,20 +306,20 @@ static void xen_set_pte_at(struct mm_struct *mm, unsigned long addr,
__xen_set_pte(ptep, pteval);
}
-pte_t xen_ptep_modify_prot_start(struct mm_struct *mm,
+pte_t xen_ptep_modify_prot_start(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
/* Just return the pte as-is. We preserve the bits on commit */
- trace_xen_mmu_ptep_modify_prot_start(mm, addr, ptep, *ptep);
+ trace_xen_mmu_ptep_modify_prot_start(vma->vm_mm, addr, ptep, *ptep);
return *ptep;
}
-void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
+void xen_ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep, pte_t pte)
{
struct mmu_update u;
- trace_xen_mmu_ptep_modify_prot_commit(mm, addr, ptep, pte);
+ trace_xen_mmu_ptep_modify_prot_commit(vma->vm_mm, addr, ptep, pte);
xen_mc_batch();
u.ptr = virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD;