Hi, I am trying to get encryption to work on block size < page size scenario (e.g. 4k block size on ppc64's 64k page size). One of the last scenarios that I am working on is to decrypt a page whose blocks are not contiguously stored on the underlying disk. The code assumes that bio's pages are supposed to be decrypted if bio-b_private has a non-zero value (See the definition of ext4_bio_encrypted()). Instead of that, why can't the code extract the first page from the first bio vector of the bio and then use ext4_encrypted_inode(page->mapping->host) to determine if bio's pages are supposed to contain encrypted data? Was there a specific reason to not use ext4_encrypted_inode()? -- chandan
