arch/sh/include/asm/pgalloc_nopmd.h

   1 #ifndef __ASM_SH_PGALLOC_NOPMD_H
   2 #define __ASM_SH_PGALLOC_NOPMD_H
   3
   4 #define QUICK_PGD 0     /* We preserve special mappings over free */
   5
   6 static inline void pgd_ctor(void *x)
   7 {
   8         pgd_t *pgd = x;
   9
  10         memcpy(pgd + USER_PTRS_PER_PGD,
  11                swapper_pg_dir + USER_PTRS_PER_PGD,
  12                (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
  13 }
  14
  15 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
  16 {
  17         return quicklist_alloc(QUICK_PGD, GFP_KERNEL | __GFP_REPEAT, pgd_ctor);
  18 }
  19
  20 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
  21 {
  22         quicklist_free(QUICK_PGD, NULL, pgd);
  23 }
  24
  25 static inline void __check_pgt_cache(void)
  26 {
  27         quicklist_trim(QUICK_PGD, NULL, 25, 16);
  28 }
  29
  30 #endif /* __ASM_SH_PGALLOC_NOPMD_H */