On 28.08.19 г. 5:33 ч., Qu Wenruo wrote:
> For SYSTEM chunks, despite the regular chunk item size limit, there is
> another limit due to system chunk array size.
>
> The extra limit is removed in a refactor, so just add it back.
>
> Fixes: e3ecdb3fdecf ("btrfs: factor out devs_max setting in __btrfs_alloc_chunk")
> Signed-off-by: Qu Wenruo <wqu@xxxxxxxx>
Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
> ---
> fs/btrfs/volumes.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index a447d3ec48d5..8b72d03738d9 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -4966,6 +4966,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
> } else if (type & BTRFS_BLOCK_GROUP_SYSTEM) {
> max_stripe_size = SZ_32M;
> max_chunk_size = 2 * max_stripe_size;
> + devs_max = min_t(int, devs_max, BTRFS_MAX_DEVS_SYS_CHUNK);
> } else {
> btrfs_err(info, "invalid chunk type 0x%llx requested",
> type);
>
