[lkml]   [2006]   [Aug]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH 1/5] Forking ext4 filesystem from ext3 filesystem
    Andrew Morton wrote:
    > On Thu, 10 Aug 2006 16:13:33 -0400
    > Jeff Garzik <> wrote:
    >> The sooner we kill buffer heads and use submit_bio(), the better :)
    > A buffer_head is a caching entity and a bio is an IO container. They're
    > quite separate concepts.

    Yeah, sorry, I meant direct pagecache I/O. I forgot that bio doesn't
    handle caching.

    > A buffer_head is the kernel's sole abstraction of a disk block.
    > Filesystems use disk blocks a lot, and they need such an abstraction.

    IMO Al Viro work has shown that you can do pagecache I/O without needing
    such a heavyweight system.


    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-08-10 23:05    [W:0.021 / U:3.920 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site