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    Subject[PATCH 4/7] Add stream ID support for buffered mpage/__block_write_full_page()
    Date
    Pass on the inode stream ID to the bio allocation.

    Signed-off-by: Jens Axboe <axboe@fb.com>
    ---
    fs/buffer.c | 4 ++--
    fs/mpage.c | 1 +
    2 files changed, 3 insertions(+), 2 deletions(-)

    diff --git a/fs/buffer.c b/fs/buffer.c
    index 20805db2c987..0220925ff26d 100644
    --- a/fs/buffer.c
    +++ b/fs/buffer.c
    @@ -1774,7 +1774,7 @@ static int __block_write_full_page(struct inode *inode, struct page *page,
    do {
    struct buffer_head *next = bh->b_this_page;
    if (buffer_async_write(bh)) {
    - submit_bh(write_op, bh);
    + _submit_bh(write_op, bh, streamid_to_flags(inode_streamid(inode)));
    nr_underway++;
    }
    bh = next;
    @@ -1828,7 +1828,7 @@ recover:
    struct buffer_head *next = bh->b_this_page;
    if (buffer_async_write(bh)) {
    clear_buffer_dirty(bh);
    - submit_bh(write_op, bh);
    + _submit_bh(write_op, bh, streamid_to_flags(inode_streamid(inode)));
    nr_underway++;
    }
    bh = next;
    diff --git a/fs/mpage.c b/fs/mpage.c
    index 3e79220babac..fba13f4b981d 100644
    --- a/fs/mpage.c
    +++ b/fs/mpage.c
    @@ -605,6 +605,7 @@ alloc_new:
    bio_get_nr_vecs(bdev), GFP_NOFS|__GFP_HIGH);
    if (bio == NULL)
    goto confused;
    + bio_set_streamid(bio, inode_streamid(inode));
    }

    /*
    --
    1.9.1


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