diff options
Diffstat (limited to 'arch/ia64/mm')
| -rw-r--r-- | arch/ia64/mm/fault.c | 8 | ||||
| -rw-r--r-- | arch/ia64/mm/numa.c | 18 |
2 files changed, 23 insertions, 3 deletions
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c index 14ef7cceb20..59f3ab93761 100644 --- a/arch/ia64/mm/fault.c +++ b/arch/ia64/mm/fault.c @@ -146,9 +146,11 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re # error File is out of sync with <linux/mm.h>. Please update. # endif + if (((isr >> IA64_ISR_R_BIT) & 1UL) && (!(vma->vm_flags & (VM_READ | VM_WRITE)))) + goto bad_area; + mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT) - | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT) - | (((isr >> IA64_ISR_R_BIT) & 1UL) << VM_READ_BIT)); + | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT)); if ((vma->vm_flags & mask) != mask) goto bad_area; @@ -278,7 +280,7 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re out_of_memory: up_read(&mm->mmap_sem); - if (current->pid == 1) { + if (is_init(current)) { yield(); down_read(&mm->mmap_sem); goto survive; diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c index 64e4c21f311..7807fc5c042 100644 --- a/arch/ia64/mm/numa.c +++ b/arch/ia64/mm/numa.c @@ -16,6 +16,7 @@ #include <linux/node.h> #include <linux/init.h> #include <linux/bootmem.h> +#include <linux/module.h> #include <asm/mmzone.h> #include <asm/numa.h> @@ -69,4 +70,21 @@ int early_pfn_to_nid(unsigned long pfn) return 0; } + +#ifdef CONFIG_MEMORY_HOTPLUG +/* + * SRAT information is stored in node_memblk[], then we can use SRAT + * information at memory-hot-add if necessary. + */ + +int memory_add_physaddr_to_nid(u64 addr) +{ + int nid = paddr_to_nid(addr); + if (nid < 0) + return 0; + return nid; +} + +EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); +#endif #endif |