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Diffstat (limited to 'c_src/libbcachefs.c')
-rw-r--r--c_src/libbcachefs.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/c_src/libbcachefs.c b/c_src/libbcachefs.c
index 935b13ce..6b31d56f 100644
--- a/c_src/libbcachefs.c
+++ b/c_src/libbcachefs.c
@@ -79,9 +79,14 @@ void bch2_sb_layout_init(struct bch_sb_layout *l,
}
}
-static u64 dev_max_bucket_size(u64 dev_size)
+static u64 dev_max_bucket_size(struct bch_opts fs_opts, u64 dev_size)
{
- return rounddown_pow_of_two(dev_size / (BCH_MIN_NR_NBUCKETS * 4));
+ u64 size = rounddown_pow_of_two(dev_size / (BCH_MIN_NR_NBUCKETS * 4));
+ if (opt_defined(fs_opts, btree_node_size))
+ size = max(size, fs_opts.btree_node_size);
+ if (size * BCH_MIN_NR_NBUCKETS > dev_size)
+ die("bucket size %llu too big for device size", size);
+ return size;
}
u64 bch2_pick_bucket_size(struct bch_opts opts, dev_opts_list devs)
@@ -209,7 +214,7 @@ struct bch_sb *bch2_format(struct bch_opt_strs fs_opt_strs,
darray_for_each(devs, i)
if (!opt_defined(i->opts, bucket_size))
opt_set(i->opts, bucket_size,
- min(fs_bucket_size, dev_max_bucket_size(i->fs_size)));
+ min(fs_bucket_size, dev_max_bucket_size(fs_opts, i->fs_size)));
darray_for_each(devs, i) {
i->nbuckets = i->fs_size / i->opts.bucket_size;