diff options
Diffstat (limited to 'arch/cris/mm')
| -rw-r--r-- | arch/cris/mm/fault.c | 6 | ||||
| -rw-r--r-- | arch/cris/mm/init.c | 51 |
2 files changed, 9 insertions, 48 deletions
diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c index 73312ab6c69..1790f22e71a 100644 --- a/arch/cris/mm/fault.c +++ b/arch/cris/mm/fault.c @@ -58,8 +58,7 @@ do_page_fault(unsigned long address, struct pt_regs *regs, struct vm_area_struct * vma; siginfo_t info; int fault; - unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE | - ((writeaccess & 1) ? FAULT_FLAG_WRITE : 0); + unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE; D(printk(KERN_DEBUG "Page fault for %lX on %X at %lX, prot %d write %d\n", @@ -117,6 +116,8 @@ do_page_fault(unsigned long address, struct pt_regs *regs, if (in_atomic() || !mm) goto no_context; + if (user_mode(regs)) + flags |= FAULT_FLAG_USER; retry: down_read(&mm->mmap_sem); vma = find_vma(mm, address); @@ -155,6 +156,7 @@ retry: } else if (writeaccess == 1) { if (!(vma->vm_flags & VM_WRITE)) goto bad_area; + flags |= FAULT_FLAG_WRITE; } else { if (!(vma->vm_flags & (VM_READ | VM_EXEC))) goto bad_area; diff --git a/arch/cris/mm/init.c b/arch/cris/mm/init.c index d72ab58fd83..c81af5bd916 100644 --- a/arch/cris/mm/init.c +++ b/arch/cris/mm/init.c @@ -12,18 +12,13 @@ #include <linux/init.h> #include <linux/bootmem.h> #include <asm/tlb.h> +#include <asm/sections.h> unsigned long empty_zero_page; -extern char _stext, _edata, _etext; /* From linkerscript */ -extern char __init_begin, __init_end; - void __init mem_init(void) { - int codesize, reservedpages, datasize, initsize; - unsigned long tmp; - BUG_ON(!mem_map); /* max/min_low_pfn was set by setup.c @@ -31,35 +26,9 @@ mem_init(void) * * high_memory was also set in setup.c */ - - max_mapnr = num_physpages = max_low_pfn - min_low_pfn; - - /* this will put all memory onto the freelists */ - totalram_pages = free_all_bootmem(); - - reservedpages = 0; - for (tmp = 0; tmp < max_mapnr; tmp++) { - /* - * Only count reserved RAM pages - */ - if (PageReserved(mem_map + tmp)) - reservedpages++; - } - - codesize = (unsigned long) &_etext - (unsigned long) &_stext; - datasize = (unsigned long) &_edata - (unsigned long) &_etext; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - printk(KERN_INFO - "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, " - "%dk init)\n" , - nr_free_pages() << (PAGE_SHIFT-10), - max_mapnr << (PAGE_SHIFT-10), - codesize >> 10, - reservedpages << (PAGE_SHIFT-10), - datasize >> 10, - initsize >> 10 - ); + max_mapnr = max_low_pfn - min_low_pfn; + free_all_bootmem(); + mem_init_print_info(NULL); } /* free the pages occupied by initialization code */ @@ -67,15 +36,5 @@ mem_init(void) void free_initmem(void) { - unsigned long addr; - - addr = (unsigned long)(&__init_begin); - for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - printk (KERN_INFO "Freeing unused kernel memory: %luk freed\n", - (unsigned long)((&__init_end - &__init_begin) >> 10)); + free_initmem_default(-1); } |