Hi! I have a question on buffer heads. Can a page contain buffers which belong to different block devices? AFAICT no, because each inode belongs to exactly one block device and all pages under inode->i_mapping should too. However, buffer_head has ->b_bdev field and I am wondering why? Is that an artifact from the pre-bio times when buffer heads were used as unit for I/O and can potentially be killed? Thanks. Pekka -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
