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block: simplify and cleanup bvec pool handling

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Instead of a flag and an index just make sure an index of 0 means
no need to free the bvec array.  Also move the constants related
to the bvec pools together and use a consistent naming scheme for
them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig
2016-07-19 11:28:42 +02:00
committed by Jens Axboe
parent 70246286e9
commit ed996a52c8
5 changed files with 36 additions and 30 deletions
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drivers/md/bcache/io.c
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@@ -25,7 +25,6 @@ struct bio *bch_bbio_alloc(struct cache_set *c)
struct bio *bio = &b->bio;
bio_init(bio);
bio->bi_flags |= BIO_POOL_NONE << BIO_POOL_OFFSET;
bio->bi_max_vecs = bucket_pages(c);
bio->bi_io_vec = bio->bi_inline_vecs;