Commit 468e6a20afaccb67e2a7d7f60d301f90e1c6f301
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1df647197c
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writeback: remove vm_dirties and task->dirties
They are not used any more. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Showing 4 changed files with 0 additions and 16 deletions Side-by-side Diff
include/linux/init_task.h
include/linux/sched.h
| ... | ... | @@ -1521,7 +1521,6 @@ |
| 1521 | 1521 | #ifdef CONFIG_FAULT_INJECTION |
| 1522 | 1522 | int make_it_fail; |
| 1523 | 1523 | #endif |
| 1524 | - struct prop_local_single dirties; | |
| 1525 | 1524 | /* |
| 1526 | 1525 | * when (nr_dirtied >= nr_dirtied_pause), it's time to call |
| 1527 | 1526 | * balance_dirty_pages() for some dirty throttling pause |
kernel/fork.c
| ... | ... | @@ -162,7 +162,6 @@ |
| 162 | 162 | |
| 163 | 163 | void free_task(struct task_struct *tsk) |
| 164 | 164 | { |
| 165 | - prop_local_destroy_single(&tsk->dirties); | |
| 166 | 165 | account_kernel_stack(tsk->stack, -1); |
| 167 | 166 | free_thread_info(tsk->stack); |
| 168 | 167 | rt_mutex_debug_task_free(tsk); |
| ... | ... | @@ -273,10 +272,6 @@ |
| 273 | 272 | goto out; |
| 274 | 273 | |
| 275 | 274 | tsk->stack = ti; |
| 276 | - | |
| 277 | - err = prop_local_init_single(&tsk->dirties); | |
| 278 | - if (err) | |
| 279 | - goto out; | |
| 280 | 275 | |
| 281 | 276 | setup_thread_stack(tsk, orig); |
| 282 | 277 | clear_user_return_notifier(tsk); |
mm/page-writeback.c
| ... | ... | @@ -128,7 +128,6 @@ |
| 128 | 128 | * |
| 129 | 129 | */ |
| 130 | 130 | static struct prop_descriptor vm_completions; |
| 131 | -static struct prop_descriptor vm_dirties; | |
| 132 | 131 | |
| 133 | 132 | /* |
| 134 | 133 | * couple the period to the dirty_ratio: |
| ... | ... | @@ -154,7 +153,6 @@ |
| 154 | 153 | { |
| 155 | 154 | int shift = calc_period_shift(); |
| 156 | 155 | prop_change_shift(&vm_completions, shift); |
| 157 | - prop_change_shift(&vm_dirties, shift); | |
| 158 | 156 | |
| 159 | 157 | writeback_set_ratelimit(); |
| 160 | 158 | } |
| ... | ... | @@ -235,11 +233,6 @@ |
| 235 | 233 | } |
| 236 | 234 | EXPORT_SYMBOL_GPL(bdi_writeout_inc); |
| 237 | 235 | |
| 238 | -void task_dirty_inc(struct task_struct *tsk) | |
| 239 | -{ | |
| 240 | - prop_inc_single(&vm_dirties, &tsk->dirties); | |
| 241 | -} | |
| 242 | - | |
| 243 | 236 | /* |
| 244 | 237 | * Obtain an accurate fraction of the BDI's portion. |
| 245 | 238 | */ |
| ... | ... | @@ -1395,7 +1388,6 @@ |
| 1395 | 1388 | |
| 1396 | 1389 | shift = calc_period_shift(); |
| 1397 | 1390 | prop_descriptor_init(&vm_completions, shift); |
| 1398 | - prop_descriptor_init(&vm_dirties, shift); | |
| 1399 | 1391 | } |
| 1400 | 1392 | |
| 1401 | 1393 | /** |
| ... | ... | @@ -1724,7 +1716,6 @@ |
| 1724 | 1716 | __inc_zone_page_state(page, NR_DIRTIED); |
| 1725 | 1717 | __inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); |
| 1726 | 1718 | __inc_bdi_stat(mapping->backing_dev_info, BDI_DIRTIED); |
| 1727 | - task_dirty_inc(current); | |
| 1728 | 1719 | task_io_account_write(PAGE_CACHE_SIZE); |
| 1729 | 1720 | } |
| 1730 | 1721 | } |