diff options
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 46 |
1 files changed, 21 insertions, 25 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index dc32dae01e5f..74dc57c74349 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -209,7 +209,7 @@ int dirty_bytes_handler(struct ctl_table *table, int write, struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos) { - int old_bytes = vm_dirty_bytes; + unsigned long old_bytes = vm_dirty_bytes; int ret; ret = proc_doulongvec_minmax(table, write, filp, buffer, lenp, ppos); @@ -240,7 +240,7 @@ void bdi_writeout_inc(struct backing_dev_info *bdi) } EXPORT_SYMBOL_GPL(bdi_writeout_inc); -static inline void task_dirty_inc(struct task_struct *tsk) +void task_dirty_inc(struct task_struct *tsk) { prop_inc_single(&vm_dirties, &tsk->dirties); } @@ -1051,20 +1051,23 @@ continue_unlock: } } - if (nr_to_write > 0) + if (nr_to_write > 0) { nr_to_write--; - else if (wbc->sync_mode == WB_SYNC_NONE) { - /* - * We stop writing back only if we are not - * doing integrity sync. In case of integrity - * sync we have to keep going because someone - * may be concurrently dirtying pages, and we - * might have synced a lot of newly appeared - * dirty pages, but have not synced all of the - * old dirty pages. - */ - done = 1; - break; + if (nr_to_write == 0 && + wbc->sync_mode == WB_SYNC_NONE) { + /* + * We stop writing back only if we are + * not doing integrity sync. In case of + * integrity sync we have to keep going + * because someone may be concurrently + * dirtying pages, and we might have + * synced a lot of newly appeared dirty + * pages, but have not synced all of the + * old dirty pages. + */ + done = 1; + break; + } } if (wbc->nonblocking && bdi_write_congested(bdi)) { @@ -1076,7 +1079,7 @@ continue_unlock: pagevec_release(&pvec); cond_resched(); } - if (!cycled) { + if (!cycled && !done) { /* * range_cyclic: * We hit the last page and there is more work to be done: wrap @@ -1227,6 +1230,7 @@ int __set_page_dirty_nobuffers(struct page *page) __inc_zone_page_state(page, NR_FILE_DIRTY); __inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); + task_dirty_inc(current); task_io_account_write(PAGE_CACHE_SIZE); } radix_tree_tag_set(&mapping->page_tree, @@ -1259,7 +1263,7 @@ EXPORT_SYMBOL(redirty_page_for_writepage); * If the mapping doesn't provide a set_page_dirty a_op, then * just fall through and assume that it wants buffer_heads. */ -static int __set_page_dirty(struct page *page) +int set_page_dirty(struct page *page) { struct address_space *mapping = page_mapping(page); @@ -1277,14 +1281,6 @@ static int __set_page_dirty(struct page *page) } return 0; } - -int set_page_dirty(struct page *page) -{ - int ret = __set_page_dirty(page); - if (ret) - task_dirty_inc(current); - return ret; -} EXPORT_SYMBOL(set_page_dirty); /* |