*/
#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>
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)) {
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;
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];