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    Subject[2.6 patch] remove mm/backing-dev.c:congestion_wait_interruptible()
    On Tue, Jul 03, 2007 at 06:35:36PM -0400, Trond Myklebust wrote:
    > On Tue, 2007-07-03 at 14:48 -0700, Andrew Morton wrote:
    > > On Sun, 1 Jul 2007 22:20:51 +0200
    > > Adrian Bunk <bunk@stusta.de> wrote:
    > >
    > > > congestion_wait_interruptible() is no longer used.
    > >
    > > We might as well just delete it?
    >
    > I agree. We're better off deleting it, but either would be fine by me.

    Updated patch below.

    > Trond

    cu
    Adrian


    <-- snip -->


    congestion_wait_interruptible() is no longer used.

    Signed-off-by: Adrian Bunk <bunk@stusta.de>
    Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no>

    ---

    include/linux/backing-dev.h | 1 -
    mm/backing-dev.c | 16 ----------------
    2 files changed, 17 deletions(-)

    --- linux-2.6.22-rc4-mm2/include/linux/backing-dev.h.old 2007-06-12 01:21:52.000000000 +0200
    +++ linux-2.6.22-rc4-mm2/include/linux/backing-dev.h 2007-06-12 01:22:00.000000000 +0200
    @@ -93,7 +93,6 @@
    void clear_bdi_congested(struct backing_dev_info *bdi, int rw);
    void set_bdi_congested(struct backing_dev_info *bdi, int rw);
    long congestion_wait(int rw, long timeout);
    -long congestion_wait_interruptible(int rw, long timeout);
    void congestion_end(int rw);

    #define bdi_cap_writeback_dirty(bdi) \
    --- linux-2.6.22-rc6-mm1/mm/backing-dev.c.old 2007-07-04 00:44:10.000000000 +0200
    +++ linux-2.6.22-rc6-mm1/mm/backing-dev.c 2007-07-04 00:44:24.000000000 +0200
    @@ -55,22 +55,6 @@
    }
    EXPORT_SYMBOL(congestion_wait);

    -long congestion_wait_interruptible(int rw, long timeout)
    -{
    - long ret;
    - DEFINE_WAIT(wait);
    - wait_queue_head_t *wqh = &congestion_wqh[rw];
    -
    - prepare_to_wait(wqh, &wait, TASK_INTERRUPTIBLE);
    - if (signal_pending(current))
    - ret = -ERESTARTSYS;
    - else
    - ret = io_schedule_timeout(timeout);
    - finish_wait(wqh, &wait);
    - return ret;
    -}
    -EXPORT_SYMBOL(congestion_wait_interruptible);
    -
    /**
    * congestion_end - wake up sleepers on a congested backing_dev_info
    * @rw: READ or WRITE
    -
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