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| author | Christoph Hellwig <hch@lst.de> | 2019-06-06 12:29:01 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-06-20 10:29:22 -0600 |
| commit | 14ccb66b3f585b2bc21e7256c96090abed5a512c (patch) | |
| tree | 7b0d48d59ee474ac1a590352507c7890c16f1e8d /Documentation/block | |
| parent | f924cddebc900f7cb10d5538d69523e558fa681c (diff) | |
| download | linux-14ccb66b3f585b2bc21e7256c96090abed5a512c.tar.gz linux-14ccb66b3f585b2bc21e7256c96090abed5a512c.tar.bz2 linux-14ccb66b3f585b2bc21e7256c96090abed5a512c.zip | |
block: remove the bi_phys_segments field in struct bio
We only need the number of segments in the blk-mq submission path.
Remove the field from struct bio, and return it from a variant of
blk_queue_split instead of that it can passed as an argument to
those functions that need the value.
This also means we stop recounting segments except for cloning
and partial segments.
To keep the number of arguments in this how path down remove
pointless struct request_queue arguments from any of the functions
that had it and grew a nr_segs argument.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/block')
| -rw-r--r-- | Documentation/block/biodoc.txt | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index ac18b488cb5e..31c177663ed5 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt @@ -436,7 +436,6 @@ struct bio { struct bvec_iter bi_iter; /* current index into bio_vec array */ unsigned int bi_size; /* total size in bytes */ - unsigned short bi_phys_segments; /* segments after physaddr coalesce*/ unsigned short bi_hw_segments; /* segments after DMA remapping */ unsigned int bi_max; /* max bio_vecs we can hold used as index into pool */ |