• Weston Andros Adamson's avatar
    NFS: fix subtle change in COMMIT behavior · cb1410c7
    Weston Andros Adamson authored
    Recent work in the pgio layer made it possible for there to be more than one
    request per page. This caused a subtle change in commit behavior, because
    write.c:nfs_commit_unstable_pages compares the number of *pages* waiting for
    writeback against the number of requests on a commit list to choose when to
    send a COMMIT in a non-blocking flush.
    
    This is probably hard to hit in normal operation - you have to be using
    rsize/wsize < PAGE_SIZE, or pnfs with lots of boundaries that are not page
    aligned to have a noticeable change in behavior.
    Signed-off-by: default avatarWeston Andros Adamson <dros@primarydata.com>
    Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
    cb1410c7
write.c 51.2 KB