diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ide/ide-tape.c | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 2fe4e8fdf3d..27fd33db0a0 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -810,25 +810,6 @@ static void idetape_activate_next_stage(ide_drive_t *drive) } /* - * idetape_increase_max_pipeline_stages is a part of the feedback - * loop which tries to find the optimum number of stages. In the - * feedback loop, we are starting from a minimum maximum number of - * stages, and if we sense that the pipeline is empty, we try to - * increase it, until we reach the user compile time memory limit. - */ -static void idetape_increase_max_pipeline_stages (ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - int increase = (tape->max_pipeline - tape->min_pipeline) / 10; - - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - tape->max_stages += max(increase, 1); - tape->max_stages = max(tape->max_stages, tape->min_pipeline); - tape->max_stages = min(tape->max_stages, tape->max_pipeline); -} - -/* * idetape_kfree_stage calls kfree to completely free a stage, along with * its related buffers. */ @@ -976,7 +957,21 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects) (void)ide_do_drive_cmd(drive, tape->active_data_rq, ide_end); } else if (!error) { - idetape_increase_max_pipeline_stages(drive); + /* + * This is a part of the feedback loop which tries to + * find the optimum number of stages. We are starting + * from a minimum maximum number of stages, and if we + * sense that the pipeline is empty, we try to increase + * it, until we reach the user compile time memory + * limit. + */ + int i = (tape->max_pipeline - tape->min_pipeline) / 10; + + tape->max_stages += max(i, 1); + tape->max_stages = max(tape->max_stages, + tape->min_pipeline); + tape->max_stages = min(tape->max_stages, + tape->max_pipeline); } } ide_end_drive_cmd(drive, 0, 0); |