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btrfs: cleanup duplicate bio allocating functions

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extent_bio_alloc() and compressed_bio_alloc() are similar, cleanup
similar source code.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Miao Xie
2010-11-22 03:02:55 +00:00
committed by Chris Mason
parent 0c56fa9662
commit 88f794ede7
3 changed files with 8 additions and 18 deletions
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15
fs/btrfs/compression.c
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@@ -91,23 +91,10 @@ 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)
{
struct bio *bio;
int nr_vecs;
nr_vecs = bio_get_nr_vecs(bdev);
bio = bio_alloc(gfp_flags, nr_vecs);
if (bio == NULL && (current->flags & PF_MEMALLOC)) {
while (!bio && (nr_vecs /= 2))
bio = bio_alloc(gfp_flags, nr_vecs);
}
if (bio) {
bio->bi_size = 0;
bio->bi_bdev = bdev;
bio->bi_sector = first_byte >> 9;
}
return bio;
return btrfs_bio_alloc(bdev, first_byte >> 9, nr_vecs, gfp_flags);
}
static int check_compressed_csum(struct inode *inode,