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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-11-04 22:09:51 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:08:11 -0400 |
| commit | 8b335baef22768deb7140e45f32f37ea51a1faf4 (patch) | |
| tree | 47e503994a655cbef184189b655c1d77576e5478 /fs/bcachefs/buckets.c | |
| parent | b092dadd55fb242a480f81c421303a9e53302156 (diff) | |
bcachefs: Assorted fixes for running on very small devices
It's now possible to create and use a filesystem on a 512k device with
4k buckets (though at that size we still waste almost half to internal
reserves)
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/buckets.c')
| -rw-r--r-- | fs/bcachefs/buckets.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/bcachefs/buckets.c b/fs/bcachefs/buckets.c index cfbe3ed41d0e..28ec8a58319c 100644 --- a/fs/bcachefs/buckets.c +++ b/fs/bcachefs/buckets.c @@ -887,9 +887,9 @@ int bch2_dev_buckets_resize(struct bch_fs *c, struct bch_dev *ca, u64 nbuckets) size_t btree_reserve = DIV_ROUND_UP(BTREE_NODE_RESERVE, ca->mi.bucket_size / c->opts.btree_node_size); /* XXX: these should be tunable */ - size_t reserve_none = max_t(size_t, 4, nbuckets >> 9); - size_t copygc_reserve = max_t(size_t, 16, nbuckets >> 7); - size_t free_inc_nr = max(max_t(size_t, 16, nbuckets >> 12), + size_t reserve_none = max_t(size_t, 1, nbuckets >> 9); + size_t copygc_reserve = max_t(size_t, 2, nbuckets >> 7); + size_t free_inc_nr = max(max_t(size_t, 1, nbuckets >> 12), btree_reserve); bool resize = ca->buckets != NULL, start_copygc = ca->copygc_thread != NULL; |