[RFC PATCH v1 16/18] iomap: User throttling for async buffered writes.

[Stefan Roesch <shr@fb.com>]

This enables throttling for async buffered writes.

Signed-off-by: Stefan Roesch <shr@fb.com>
---
 fs/iomap/buffered-io.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 5c53a5715c85..0f0a6fe36699 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -843,7 +843,8 @@ static loff_t iomap_write_iter(struct iomap_iter *iter, struct iov_iter *i)
 		written += status;
 		length -= status;
 
-		balance_dirty_pages_ratelimited(iter->inode->i_mapping);
+		balance_dirty_pages_ratelimited_flags(iter->inode->i_mapping,
+						(iter->flags & IOMAP_NOWAIT));
 	} while (iov_iter_count(i) && length);
 
 	return written ? written : status;
-- 
2.30.2