xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

block: remove the bi_phys_segments field in struct bio

Browse Source 
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>
This commit is contained in:
Christoph Hellwig
2019-06-06 12:29:01 +02:00
committed by Jens Axboe
parent f924cddebc
commit 14ccb66b3f
18 changed files with 106 additions and 137 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/bio.h
View File

@@ -408,7 +408,6 @@ static inline void bio_wouldblock_error(struct bio *bio)
}
struct request_queue;
extern int bio_phys_segments(struct request_queue *, struct bio *);
extern int submit_bio_wait(struct bio *bio);
extern void bio_advance(struct bio *, unsigned);