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block: remove bio_get_nr_vecs()

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We can always fill up the bio now, no need to estimate the possible
size based on queue parameters.

Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
[hch: rebased and wrote a changelog]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Kent Overstreet
2015-05-19 14:31:01 +02:00
committed by Jens Axboe
parent 6cf66b4caf
commit b54ffb73ca
16 changed files with 18 additions and 74 deletions
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5
fs/btrfs/compression.c
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@@ -97,10 +97,7 @@ static inline int compressed_bio_size(struct btrfs_root *root,
static struct bio *compressed_bio_alloc(struct block_device *bdev,
u64 first_byte, gfp_t gfp_flags)
{
int nr_vecs;
nr_vecs = bio_get_nr_vecs(bdev);
return btrfs_bio_alloc(bdev, first_byte >> 9, nr_vecs, gfp_flags);
return btrfs_bio_alloc(bdev, first_byte >> 9, BIO_MAX_PAGES, gfp_flags);
}
static int check_compressed_csum(struct inode *inode,