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Subject[PATCH 16/24] ide-tape: remove idetape_calculate_speeds
Date
From
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
---
drivers/ide/ide-tape.c | 64 ------------------------------------------------
1 files changed, 0 insertions(+), 64 deletions(-)
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 93e42e6..cfc11bb 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1187,69 +1187,6 @@ static void idetape_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code)
pc->idetape_callback = &idetape_pc_callback;
}

-static void idetape_calculate_speeds(ide_drive_t *drive)
-{
- idetape_tape_t *tape = drive->driver_data;
-
- if (time_after(jiffies,
- tape->controlled_pipeline_head_time + 120 * HZ)) {
- tape->controlled_previous_pipeline_head =
- tape->controlled_last_pipeline_head;
- tape->controlled_previous_head_time =
- tape->controlled_pipeline_head_time;
- tape->controlled_last_pipeline_head = tape->pipeline_head;
- tape->controlled_pipeline_head_time = jiffies;
- }
- if (time_after(jiffies, tape->controlled_pipeline_head_time + 60 * HZ))
- tape->controlled_pipeline_head_speed = (tape->pipeline_head -
- tape->controlled_last_pipeline_head) * 32 * HZ /
- (jiffies - tape->controlled_pipeline_head_time);
- else if (time_after(jiffies, tape->controlled_previous_head_time))
- tape->controlled_pipeline_head_speed = (tape->pipeline_head -
- tape->controlled_previous_pipeline_head) * 32 *
- HZ / (jiffies - tape->controlled_previous_head_time);
-
- if (tape->nr_pending_stages < tape->max_stages/*- 1 */) {
- /* -1 for read mode error recovery */
- if (time_after(jiffies, tape->uncontrolled_previous_head_time +
- 10 * HZ)) {
- tape->uncontrolled_pipeline_head_time = jiffies;
- tape->uncontrolled_pipeline_head_speed =
- (tape->pipeline_head -
- tape->uncontrolled_previous_pipeline_head) *
- 32 * HZ / (jiffies -
- tape->uncontrolled_previous_head_time);
- }
- } else {
- tape->uncontrolled_previous_head_time = jiffies;
- tape->uncontrolled_previous_pipeline_head = tape->pipeline_head;
- if (time_after(jiffies, tape->uncontrolled_pipeline_head_time +
- 30 * HZ))
- tape->uncontrolled_pipeline_head_time = jiffies;
-
- }
- tape->pipeline_head_speed = max(tape->uncontrolled_pipeline_head_speed,
- tape->controlled_pipeline_head_speed);
-
- if (tape->speed_control == 1) {
- if (tape->nr_pending_stages >= tape->max_stages / 2)
- tape->max_insert_speed = tape->pipeline_head_speed +
- (1100 - tape->pipeline_head_speed) * 2 *
- (tape->nr_pending_stages - tape->max_stages / 2)
- / tape->max_stages;
- else
- tape->max_insert_speed = 500 +
- (tape->pipeline_head_speed - 500) * 2 *
- tape->nr_pending_stages / tape->max_stages;
-
- if (tape->nr_pending_stages >= tape->max_stages * 99 / 100)
- tape->max_insert_speed = 5000;
- } else
- tape->max_insert_speed = tape->speed_control;
-
- tape->max_insert_speed = max(tape->max_insert_speed, 500);
-}
-
static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
@@ -1402,7 +1339,6 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
if (time_after(jiffies, tape->insert_time))
tape->insert_speed = tape->insert_size / 1024 * HZ /
(jiffies - tape->insert_time);
- idetape_calculate_speeds(drive);
if (!test_and_clear_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags) &&
(stat & SEEK_STAT) == 0) {
if (postponed_rq == NULL) {
--
1.5.4.1


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