linux-kernel - [PATCH 5/7] btrfs: add support for write stream IDs

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Date:	Wed, 25 Mar 2015 09:07:48 -0600
From:	Jens Axboe <axboe@...com>
To:	<linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>
CC:	<ming.l@....samsung.com>, <david@...morbit.com>,
	Jens Axboe <axboe@...com>
Subject: [PATCH 5/7] btrfs: add support for write stream IDs

Both buffered and O_DIRECT.

Signed-off-by: Jens Axboe <axboe@...com>
---
 fs/btrfs/extent_io.c | 1 +
 fs/btrfs/inode.c     | 1 +
 2 files changed, 2 insertions(+)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index d688cfe5d496..2845fae054b6 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2838,6 +2838,7 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
 	bio_add_page(bio, page, page_size, offset);
 	bio->bi_end_io = end_io_func;
 	bio->bi_private = tree;
+	bio_set_streamid(bio, inode_streamid(page->mapping->host));
 
 	if (bio_ret)
 		*bio_ret = bio;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d2e732d7af52..804fd6768109 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8046,6 +8046,7 @@ static void btrfs_submit_direct(int rw, struct bio *dio_bio,
 	atomic_set(&dip->pending_bios, 0);
 	btrfs_bio = btrfs_io_bio(io_bio);
 	btrfs_bio->logical = file_offset;
+	bio_set_streamid(io_bio, inode_streamid(inode));
 
 	if (write) {
 		io_bio->bi_end_io = btrfs_endio_direct_write;
-- 
1.9.1

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