ide-tape: remove tape->cache_stage

Prior to allocating a new pipeline stage, the code checked for the existence of
a cached pipeline stage to use. Do away with and stick to normal pipeline
stages only.

[bart: keep idetape_kmalloc_stage() for now]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 1 insertions, 12 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index d3d8b8d5157c..8883eea4658f 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -365,8 +365,6 @@ typedef struct ide_tape_obj {
         idetape_stage_t *next_stage;
         /* New requests will be added to the pipeline here */
         idetape_stage_t *last_stage;
-        /* Optional free stage which we can use */
-        idetape_stage_t *cache_stage;
         int pages_per_stage;
         /* Wasted space in each stage */
         int excess_bh_size;
@@ -1686,16 +1684,10 @@ abort:
 
 static idetape_stage_t *idetape_kmalloc_stage(idetape_tape_t *tape)
 {
-        idetape_stage_t *cache_stage = tape->cache_stage;
-
         debug_log(DBG_PROCS, "Enter %s\n", __func__);
 
         if (tape->nr_stages >= tape->max_stages)
                 return NULL;
-        if (cache_stage != NULL) {
-                tape->cache_stage = NULL;
-                return cache_stage;
-        }
         return __idetape_kmalloc_stage(tape, 0, 0);
 }
 
@@ -3245,10 +3237,7 @@ static int idetape_chrdev_release(struct inode *inode, struct file *filp)
                 else
                         idetape_wait_for_pipeline(drive);
         }
-        if (tape->cache_stage != NULL) {
-                __idetape_kfree_stage(tape->cache_stage);
-                tape->cache_stage = NULL;
-        }
+
         if (minor < 128 && test_bit(IDETAPE_FLAG_MEDIUM_PRESENT, &tape->flags))
                 (void) idetape_rewind_tape(drive);
         if (tape->chrdev_dir == IDETAPE_DIR_NONE) {