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raid5: remove a call to get_start_sect 

The block layer always remaps partitions before calling into the
->make_request methods of drivers.  Thus the call to get_start_sect in
in_chunk_boundary will always return 0 and can be removed.

Reviewed-by: Shaohua Li <shli@fb.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2017-08-23 19:10:28 +02:00 committed by Jens Axboe
parent f8f84b2dfd
commit 10433d04b8
1 changed files with 3 additions and 1 deletions
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4
drivers/md/raid5.c
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@ -5092,10 +5092,12 @@ static int raid5_congested(struct mddev *mddev, int bits)
static int in_chunk_boundary(struct mddev *mddev, struct bio *bio)
{
struct r5conf *conf = mddev->private;
sector_t sector = bio->bi_iter.bi_sector + get_start_sect(bio->bi_bdev);
sector_t sector = bio->bi_iter.bi_sector;
unsigned int chunk_sectors;
unsigned int bio_sectors = bio_sectors(bio);
WARN_ON_ONCE(bio->bi_partno);
chunk_sectors = min(conf->chunk_sectors, conf->prev_chunk_sectors);
return chunk_sectors >=
((sector & (chunk_sectors - 1)) + bio_sectors);