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Commit 1100373f authored by Chris Mason's avatar Chris Mason
Browse files

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: default avatarChris Mason <chris.mason@oracle.com>
parent cf1d72c9

fs/btrfs/volumes.c

+5 −1
Original line number Diff line number Diff line
@@ -2441,6 +2441,10 @@ 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) {

		/* 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) {