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-rw-r--r--mm/page-writeback.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 632b46479c9..31f69886242 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1040,11 +1040,17 @@ static int __writepage(struct page *page, struct writeback_control *wbc,
int generic_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
+ struct blk_plug plug;
+ int ret;
+
/* deal with chardevs and other special file */
if (!mapping->a_ops->writepage)
return 0;
- return write_cache_pages(mapping, wbc, __writepage, mapping);
+ blk_start_plug(&plug);
+ ret = write_cache_pages(mapping, wbc, __writepage, mapping);
+ blk_finish_plug(&plug);
+ return ret;
}
EXPORT_SYMBOL(generic_writepages);
@@ -1251,7 +1257,7 @@ int set_page_dirty_lock(struct page *page)
{
int ret;
- lock_page_nosync(page);
+ lock_page(page);
ret = set_page_dirty(page);
unlock_page(page);
return ret;