From: Qu Wenruo wqu@suse.com
commit c17add7a1c61a15578e4071ed7bfd460fd041c43 upstream.
For SYSTEM chunks, despite the regular chunk item size limit, there is another limit due to system chunk array size.
The extra limit was removed in a refactoring, so add it back.
Fixes: e3ecdb3fdecf ("btrfs: factor out devs_max setting in __btrfs_alloc_chunk") CC: stable@vger.kernel.org # 5.3+ Reviewed-by: Nikolay Borisov nborisov@suse.com Reviewed-by: Anand Jain anand.jain@oracle.com Signed-off-by: Qu Wenruo wqu@suse.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/btrfs/volumes.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -4976,6 +4976,7 @@ static int __btrfs_alloc_chunk(struct bt } 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);