From c6bf3f0e25f4c0f0ecce6cf8d1c589bd9d74d3cf Mon Sep 17 00:00:00 2001

From: Christoph Hellwig <hch@lst.de>

Date: Tue, 26 Jan 2021 15:52:35 +0100

Subject: [Backport c6bf3f0e25f4] block: use an on-stack bio in

 blkdev_issue_flush

There is no point in allocating memory for a synchronous flush.

Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>

Acked-by: Damien Le Moal <damien.lemoal@wdc.com>

Signed-off-by: Jens Axboe <axboe@kernel.dk>

---

 src/file.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/file.c b/src/file.c

index a92478eabfa4e43f2198ccf9b62b8632b697c8dc..183ffdf4d43c5fa781c8b7ddcde8dda4cdce2ac4 100644

--- a/src/file.c

+++ b/src/file.c

@@ -361,7 +361,7 @@ int exfat_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync)

 	if (err)

 		return err;

-	return blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);

+	return blkdev_issue_flush(inode->i_sb->s_bdev);

 }

 const struct file_operations exfat_file_operations = {

-- 

2.31.1