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    Subject[PATCH 15/17] ide-tape: remove misc references to pipelined operation in the comments
    Date
    From
    Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
    ---
    drivers/ide/ide-tape.c | 22 +++-------------------
    1 files changed, 3 insertions(+), 19 deletions(-)

    diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
    index 9ae42c3..a4caf2b 100644
    --- a/drivers/ide/ide-tape.c
    +++ b/drivers/ide/ide-tape.c
    @@ -265,9 +265,7 @@ typedef struct ide_tape_obj {
    * While polling for DSC we use postponed_rq to postpone the current
    * request so that ide.c will be able to service pending requests on the
    * other device. Note that at most we will have only one DSC (usually
    - * data transfer) request in the device request queue. Additional
    - * requests can be queued in our internal pipeline, but they will be
    - * visible to ide.c only one at a time.
    + * data transfer) request in the device request queue.
    */
    struct request *postponed_rq;
    /* The time in which we started polling for DSC */
    @@ -608,10 +606,6 @@ static void __idetape_kfree_stage(idetape_stage_t *stage)
    kfree(stage);
    }

    -/*
    - * Finish servicing a request and insert a pending pipeline request into the
    - * main device queue.
    - */
    static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
    {
    struct request *rq = HWGROUP(drive)->rq;
    @@ -1291,8 +1285,6 @@ out:
    return idetape_issue_pc(drive, pc);
    }

    -/* Pipeline related functions */
    -
    /*
    * The function below uses __get_free_page to allocate a pipeline stage, along
    * with all the necessary small buffers which together make a buffer of size
    @@ -1301,9 +1293,6 @@ out:
    *
    * It returns a pointer to the new allocated stage, or NULL if we can't (or
    * don't want to) allocate a stage.
    - *
    - * Pipeline stages are optional and are used to increase performance. If we
    - * can't allocate them, we'll manage without them.
    */
    static idetape_stage_t *__idetape_kmalloc_stage(idetape_tape_t *tape, int full,
    int clear)
    @@ -1775,10 +1764,7 @@ static int idetape_init_read(ide_drive_t *drive)
    return 0;
    }

    -/*
    - * Called from idetape_chrdev_read() to service a character device read request
    - * and add read-ahead requests to our pipeline.
    - */
    +/* called from idetape_chrdev_read() to service a chrdev read request. */
    static int idetape_add_chrdev_read_request(ide_drive_t *drive, int blocks)
    {
    idetape_tape_t *tape = drive->driver_data;
    @@ -2107,8 +2093,7 @@ static int idetape_write_filemark(ide_drive_t *drive)
    *
    * Note: MTBSF and MTBSFM are not supported when the tape doesn't support
    * spacing over filemarks in the reverse direction. In this case, MTFSFM is also
    - * usually not supported (it is supported in the rare case in which we crossed
    - * the filemark during our read-ahead pipelined operation mode).
    + * usually not supported.
    *
    * The following commands are currently not supported:
    *
    @@ -2124,7 +2109,6 @@ static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count)
    debug_log(DBG_ERR, "Handling MTIOCTOP ioctl: mt_op=%d, mt_count=%d\n",
    mt_op, mt_count);

    - /* Commands which need our pipelined read-ahead stages. */
    switch (mt_op) {
    case MTFSF:
    case MTFSFM:
    --
    1.5.4.1


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