swap space - 预读readahead

mm/fault.c

static int handle_page_fault(struct pt_regs *regs,

    int fault_num,

    int is_page_fault,

    unsigned long address,

    int write)

mm/memory.c

int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,

unsigned long address, unsigned int flags)

mm/memory.c

int handle_pte_fault(struct mm_struct *mm,

    struct vm_area_struct *vma, unsigned long address,

    pte_t *pte, pmd_t *pmd, unsigned int flags)

mm/memory.c

static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,

unsigned long address, pte_t *page_table, pmd_t *pmd,

unsigned int flags, pte_t orig_pte)

mm/swap_state.c

struct page *swapin_readahead(swp_entry_t entry, gfp_t gfp_mask,

struct vm_area_struct *vma, unsigned long addr)