From 9caea9208fc3fbdbd4a41a2de8c6a0c969b030f9 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Fri, 23 May 2025 21:59:12 -0400 Subject: [PATCH] bcachefs: Don't mount bs > ps without TRANSPARENT_HUGEPAGE Large folios aren't supported without TRANSPARENT_HUGEPAGE Signed-off-by: Kent Overstreet --- fs/bcachefs/super.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c index 24658bf450ab..11579b74c640 100644 --- a/fs/bcachefs/super.c +++ b/fs/bcachefs/super.c @@ -950,6 +950,13 @@ static struct bch_fs *bch2_fs_alloc(struct bch_sb *sb, struct bch_opts *opts, bch2_opts_apply(&c->opts, *opts); + if (!IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && + c->opts.block_size > PAGE_SIZE) { + bch_err(c, "cannot mount bs > ps filesystem without CONFIG_TRANSPARENT_HUGEPAGE"); + ret = -EINVAL; + goto err; + } + c->btree_key_cache_btrees |= 1U << BTREE_ID_alloc; if (c->opts.inodes_use_key_cache) c->btree_key_cache_btrees |= 1U << BTREE_ID_inodes; -- 2.25.1