From 473567f1a4996a49cb5456e55815051a6e6eb3f1 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <petkovbb@googlemail.com>
Date: Sun, 27 Apr 2008 15:38:26 +0200
Subject: [PATCH] ide-tape: remove idetape_remove_stage_head()
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-tape.c | 40 ----------------------------------------
1 file changed, 40 deletions(-)
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 25ffcbffb02a..cbba475ebc5a 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -691,41 +691,6 @@ static void idetape_kfree_stage(idetape_tape_t *tape, idetape_stage_t *stage)
__idetape_kfree_stage(stage);
}
-/*
- * Remove tape->first_stage from the pipeline. The caller should avoid race
- * conditions.
- */
-static void idetape_remove_stage_head(ide_drive_t *drive)
-{
- idetape_tape_t *tape = drive->driver_data;
- idetape_stage_t *stage;
-
- debug_log(DBG_PROCS, "Enter %s\n", __func__);
-
- if (tape->first_stage == NULL) {
- printk(KERN_ERR "ide-tape: bug: tape->first_stage is NULL\n");
- return;
- }
- if (tape->active_stage == tape->first_stage) {
- printk(KERN_ERR "ide-tape: bug: Trying to free our active "
- "pipeline stage\n");
- return;
- }
- stage = tape->first_stage;
- tape->first_stage = stage->next;
- idetape_kfree_stage(tape, stage);
- tape->nr_stages--;
- if (tape->first_stage == NULL) {
- tape->last_stage = NULL;
- if (tape->next_stage != NULL)
- printk(KERN_ERR "ide-tape: bug: tape->next_stage !="
- " NULL\n");
- if (tape->nr_stages)
- printk(KERN_ERR "ide-tape: bug: nr_stages should be 0 "
- "now\n");
- }
-}
-
/*
* This will free all the pipeline stages starting from new_last_stage->next
* to the end of the list, and point tape->last_stage to new_last_stage.
@@ -762,7 +727,6 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
idetape_tape_t *tape = drive->driver_data;
unsigned long flags;
int error;
- int remove_stage = 0;
idetape_stage_t *active_stage;
debug_log(DBG_PROCS, "Enter %s\n", __func__);
@@ -790,7 +754,6 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
tape->active_data_rq = NULL;
tape->nr_pending_stages--;
if (rq->cmd[0] & REQ_IDETAPE_WRITE) {
- remove_stage = 1;
if (error) {
set_bit(IDETAPE_FLAG_PIPELINE_ERR,
&tape->flags);
@@ -831,8 +794,6 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
}
ide_end_drive_cmd(drive, 0, 0);
- if (remove_stage)
- idetape_remove_stage_head(drive);
if (tape->active_data_rq == NULL)
clear_bit(IDETAPE_FLAG_PIPELINE_ACTIVE, &tape->flags);
spin_unlock_irqrestore(&tape->lock, flags);
@@ -1914,7 +1875,6 @@ static int __idetape_discard_read_pipeline(ide_drive_t *drive)
cnt += rq_ptr->nr_sectors - rq_ptr->current_nr_sectors;
if (rq_ptr->errors == IDETAPE_ERROR_FILEMARK)
++cnt;
- idetape_remove_stage_head(drive);
}
tape->nr_pending_stages = 0;
tape->max_stages = tape->min_pipeline;
--
2.20.1