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block: Add an explicit bio flag for bios that own their bvec

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This is for the new bio splitting code. When we split a bio, if the
split occured on a bvec boundry we reuse the bvec for the new bio. But
that means bio_free() can't free it, hence the explicit flag.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
Acked-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Kent Overstreet 2012-05-25 13:03:11 -07:00
commit a38352e0ac
3 changed files with 4 additions and 6 deletions
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5
include/linux/bio.h
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@ -85,11 +85,6 @@ static inline void *bio_data(struct bio *bio)
return NULL;
}
static inline int bio_has_allocated_vec(struct bio *bio)
{
return bio->bi_io_vec && bio->bi_io_vec != bio->bi_inline_vecs;
}
/*
* will die
*/