On Wed, Jun 07, 2023 at 08:24:04PM -0700, Luis Chamberlain wrote: > We currently share a single super_block for the block device cache, > each block device corresponds to one inode on that super_block. This > implicates sharing one aops operation though, and in the near future > we want to be able to instead support using iomap on the super_block > for different block devices. > -struct super_block *blockdev_superblock __read_mostly; Did we consider adding +struct super_block *blockdev_sb_iomap __read_mostly; and then considering only two superblocks instead of having a list of all bdevs?
