Get the streamid from the file, if any, and set it on the bio.

Signed-off-by: Jens Axboe <ax...@fb.com>
---
 fs/direct-io.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/direct-io.c b/fs/direct-io.c
index c3b560b24a46..d318a143b186 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -76,6 +76,7 @@ struct dio_submit {
        int reap_counter;               /* rate limit reaping */
        sector_t final_block_in_request;/* doesn't change */
        int boundary;                   /* prev block is at a boundary */
+       int streamid;                   /* Write stream ID */
        get_block_t *get_block;         /* block mapping function */
        dio_submit_t *submit_io;        /* IO submition function */
 
@@ -371,6 +372,8 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
 
        sdio->bio = bio;
        sdio->logical_offset_in_bio = sdio->cur_page_fs_offset;
+
+       bio_set_streamid(bio, sdio->streamid);
 }
 
 /*
@@ -1201,6 +1204,7 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode 
*inode,
        sdio.blkbits = blkbits;
        sdio.blkfactor = i_blkbits - blkbits;
        sdio.block_in_file = offset >> blkbits;
+       sdio.streamid = file_streamid(iocb->ki_filp);
 
        sdio.get_block = get_block;
        dio->end_io = end_io;
-- 
2.4.0.rc2.1.g3d6bc9a

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