[PATCH V7 03/24] exofs: use bio_clone_fast in _write_mirror

[Ming Lei]

From: Christoph Hellwig <hch@xxxxxx>

The mirroring code never changes the bio data or biovecs.  This means
we can reuse the biovec allocation easily instead of duplicating it.

Acked-by: Boaz Harrosh <ooo@xxxxxxxxxxxxxxx>
Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 fs/exofs/ore.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c
index 1b8b44637e70..5331a15a61f1 100644
--- a/fs/exofs/ore.c
+++ b/fs/exofs/ore.c
@@ -873,8 +873,8 @@ static int _write_mirror(struct ore_io_state *ios, int cur_comp)
 			struct bio *bio;
 
 			if (per_dev != master_dev) {
-				bio = bio_clone_kmalloc(master_dev->bio,
-							GFP_KERNEL);
+				bio = bio_clone_fast(master_dev->bio,
+						     GFP_KERNEL, NULL);
 				if (unlikely(!bio)) {
 					ORE_DBGMSG(
 					      "Failed to allocate BIO size=%u\n",
-- 
2.9.5