• Andrew Morton's avatar
    [PATCH] separate bdi congestion functions from queue congestion functions · 3fcfab16
    Andrew Morton authored
    Separate out the concept of "queue congestion" from "backing-dev congestion".
    Congestion is a backing-dev concept, not a queue concept.
    The blk_* congestion functions are retained, as wrappers around the core
    backing-dev congestion functions.
    This proper layering is needed so that NFS can cleanly use the congestion
    functions, and so that CONFIG_BLOCK=n actually links.
    Cc: "Thomas Maier" <balagi@justmail.de>
    Cc: "Jens Axboe" <jens.axboe@oracle.com>
    Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
    Cc: David Howells <dhowells@redhat.com>
    Cc: Peter Osterlund <petero2@telia.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>