diff options
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 9df8e3f1cca..8db7b14bbae 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -17,6 +17,7 @@ */ #include <linux/sched.h> #include <linux/bio.h> +#include <linux/slab.h> #include <linux/buffer_head.h> #include <linux/blkdev.h> #include <linux/random.h> @@ -2198,9 +2199,9 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans, min_stripes = 2; } if (type & (BTRFS_BLOCK_GROUP_RAID1)) { - num_stripes = min_t(u64, 2, fs_devices->rw_devices); - if (num_stripes < 2) + if (fs_devices->rw_devices < 2) return -ENOSPC; + num_stripes = 2; min_stripes = 2; } if (type & (BTRFS_BLOCK_GROUP_RAID10)) { @@ -2244,8 +2245,16 @@ again: do_div(calc_size, stripe_len); calc_size *= stripe_len; } + /* we don't want tiny stripes */ - calc_size = max_t(u64, min_stripe_size, calc_size); + if (!looped) + calc_size = max_t(u64, min_stripe_size, calc_size); + + /* + * we're about to do_div by the stripe_len so lets make sure + * we end up with something bigger than a stripe + */ + calc_size = max_t(u64, calc_size, stripe_len * 4); do_div(calc_size, stripe_len); calc_size *= stripe_len; @@ -3389,6 +3398,8 @@ int btrfs_read_chunk_tree(struct btrfs_root *root) key.type = 0; again: ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); + if (ret < 0) + goto error; while (1) { leaf = path->nodes[0]; slot = path->slots[0]; |