btrfs: Use direct way to determine raid56 write/recover mode
Old code used bbio->raid_map to determine whether in raid56 write/recover operation, because we didn't't have bbio->map_type. Now we have direct way for this condition, rid of using the function-relative data, and make the code more readable. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
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@ -6068,7 +6068,8 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
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bbio->fs_info = root->fs_info;
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atomic_set(&bbio->stripes_pending, bbio->num_stripes);
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if (bbio->raid_map) {
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if ((bbio->map_type & BTRFS_BLOCK_GROUP_RAID56_MASK) &&
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((rw & WRITE) || (mirror_num > 1))) {
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/* In this case, map_length has been set to the length of
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a single stripe; not the whole write */
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if (rw & WRITE) {
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