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authorChristoph Hellwig <hch@lst.de>2019-06-06 13:29:01 +0300
committerJens Axboe <axboe@kernel.dk>2019-06-20 19:29:22 +0300
commit14ccb66b3f585b2bc21e7256c96090abed5a512c (patch)
tree7b0d48d59ee474ac1a590352507c7890c16f1e8d /Documentation/block
parentf924cddebc900f7cb10d5538d69523e558fa681c (diff)
downloadlinux-14ccb66b3f585b2bc21e7256c96090abed5a512c.tar.xz
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.txt1
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 */