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-rw-r--r--mm/page-writeback.c27
1 files changed, 11 insertions, 16 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index c09ef5219cbe..e3bccac1f025 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -985,22 +985,16 @@ continue_unlock:
}
}
- if (wbc->nr_to_write > 0) {
- if (--wbc->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;
- }
+ /*
+ * We stop writing back only if we are not doing
+ * integrity sync. In case of integrity sync we have to
+ * keep going until we have written all the pages
+ * we tagged for writeback prior to entering this loop.
+ */
+ if (--wbc->nr_to_write <= 0 &&
+ wbc->sync_mode == WB_SYNC_NONE) {
+ done = 1;
+ break;
}
}
pagevec_release(&pvec);
@@ -1132,6 +1126,7 @@ void account_page_dirtied(struct page *page, struct address_space *mapping)
task_io_account_write(PAGE_CACHE_SIZE);
}
}
+EXPORT_SYMBOL(account_page_dirtied);
/*
* For address_spaces which do not use buffers. Just tag the page as dirty in