From 1100373f8aa69e377386499350496e3d8565605f Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 6 Jan 2012 15:47:38 -0500 Subject: Btrfs: use bigger metadata chunks on bigger filesystems The 256MB chunk is a little small on a huge FS. This scales up the chunk size. Signed-off-by: Chris Mason --- fs/btrfs/volumes.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index f4b839fd3c9..ac00e3aa80a 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2441,7 +2441,11 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans, max_stripe_size = 1024 * 1024 * 1024; max_chunk_size = 10 * max_stripe_size; } else if (type & BTRFS_BLOCK_GROUP_METADATA) { - max_stripe_size = 256 * 1024 * 1024; + /* for larger filesystems, use larger metadata chunks */ + if (fs_devices->total_rw_bytes > 50ULL * 1024 * 1024 * 1024) + max_stripe_size = 1024 * 1024 * 1024; + else + max_stripe_size = 256 * 1024 * 1024; max_chunk_size = max_stripe_size; } else if (type & BTRFS_BLOCK_GROUP_SYSTEM) { max_stripe_size = 8 * 1024 * 1024; -- cgit v1.2.3