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Btrfs: Make an unplug function that doesn't unplug every spindle

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2008-04-21 10:03:05 -04:00
parent 4ef64eae28
commit f2d8d74d78
4 changed files with 75 additions and 38 deletions
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6
fs/btrfs/inode.c
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@ -313,13 +313,9 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
u64 logical = bio->bi_sector << 9;
u64 length = 0;
u64 map_length;
struct bio_vec *bvec;
int i;
int ret;
bio_for_each_segment(bvec, bio, i) {
length += bvec->bv_len;
}
length = bio->bi_size;
map_tree = &root->fs_info->mapping_tree;
map_length = length;
ret = btrfs_map_block(map_tree, READ, logical,