diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page-writeback.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 0166ea15c9e..5240e426c1f 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -550,11 +550,17 @@ void __init page_writeback_init(void) int do_writepages(struct address_space *mapping, struct writeback_control *wbc) { + int ret; + if (wbc->nr_to_write <= 0) return 0; + wbc->for_writepages = 1; if (mapping->a_ops->writepages) - return mapping->a_ops->writepages(mapping, wbc); - return generic_writepages(mapping, wbc); + ret = mapping->a_ops->writepages(mapping, wbc); + else + ret = generic_writepages(mapping, wbc); + wbc->for_writepages = 0; + return ret; } /** |