On Wed, Mar 23, 2022 at 09:14:06AM +0800, Qu Wenruo wrote: > Really not a fan of enlarging btrfs_bio again and again. > > Especially for the btrfs_bio_stripe and btrfs_bio_stripe * part. > > Considering how many bytes we waste for SINGLE profile, now we need an > extra pointer which we will never really use. How do we waste memory? We stop allocating the btrfs_io_context now which can be quite big.