diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sched.h | 25 |
1 files changed, 6 insertions, 19 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index b0ad6f30679e..7da33619d5d0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h | |||
| @@ -254,25 +254,12 @@ extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long); | |||
| 254 | * The mm counters are not protected by its page_table_lock, | 254 | * The mm counters are not protected by its page_table_lock, |
| 255 | * so must be incremented atomically. | 255 | * so must be incremented atomically. |
| 256 | */ | 256 | */ |
| 257 | #ifdef ATOMIC64_INIT | 257 | #define set_mm_counter(mm, member, value) atomic_long_set(&(mm)->_##member, value) |
| 258 | #define set_mm_counter(mm, member, value) atomic64_set(&(mm)->_##member, value) | 258 | #define get_mm_counter(mm, member) ((unsigned long)atomic_long_read(&(mm)->_##member)) |
| 259 | #define get_mm_counter(mm, member) ((unsigned long)atomic64_read(&(mm)->_##member)) | 259 | #define add_mm_counter(mm, member, value) atomic_long_add(value, &(mm)->_##member) |
| 260 | #define add_mm_counter(mm, member, value) atomic64_add(value, &(mm)->_##member) | 260 | #define inc_mm_counter(mm, member) atomic_long_inc(&(mm)->_##member) |
| 261 | #define inc_mm_counter(mm, member) atomic64_inc(&(mm)->_##member) | 261 | #define dec_mm_counter(mm, member) atomic_long_dec(&(mm)->_##member) |
| 262 | #define dec_mm_counter(mm, member) atomic64_dec(&(mm)->_##member) | 262 | typedef atomic_long_t mm_counter_t; |
| 263 | typedef atomic64_t mm_counter_t; | ||
| 264 | #else /* !ATOMIC64_INIT */ | ||
| 265 | /* | ||
| 266 | * The counters wrap back to 0 at 2^32 * PAGE_SIZE, | ||
| 267 | * that is, at 16TB if using 4kB page size. | ||
| 268 | */ | ||
| 269 | #define set_mm_counter(mm, member, value) atomic_set(&(mm)->_##member, value) | ||
| 270 | #define get_mm_counter(mm, member) ((unsigned long)atomic_read(&(mm)->_##member)) | ||
| 271 | #define add_mm_counter(mm, member, value) atomic_add(value, &(mm)->_##member) | ||
| 272 | #define inc_mm_counter(mm, member) atomic_inc(&(mm)->_##member) | ||
| 273 | #define dec_mm_counter(mm, member) atomic_dec(&(mm)->_##member) | ||
| 274 | typedef atomic_t mm_counter_t; | ||
| 275 | #endif /* !ATOMIC64_INIT */ | ||
| 276 | 263 | ||
| 277 | #else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ | 264 | #else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ |
| 278 | /* | 265 | /* |
