This will cover all the invocations for writepages to be called with
plugging support.
Signed-off-by: Amit Sahrawat <a.sahrawat@xxxxxxxxxxx>
---
mm/page-writeback.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 363ba70..2bea32c 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1866,14 +1866,18 @@ EXPORT_SYMBOL(generic_writepages);
int do_writepages(struct address_space *mapping, struct writeback_control *wbc)
{
+ struct blk_plug plug;
int ret;
if (wbc->nr_to_write <= 0)
return 0;
+
+ blk_start_plug(&plug);
if (mapping->a_ops->writepages)
ret = mapping->a_ops->writepages(mapping, wbc);
else
ret = generic_writepages(mapping, wbc);
+ blk_finish_plug(&plug);
return ret;
}
--
1.7.2.3
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