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-rw-r--r--drivers/ide/ide-disk.c18
-rw-r--r--drivers/ide/ide-io.c16
-rw-r--r--include/linux/ide.h2
3 files changed, 23 insertions, 13 deletions
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 3c69822..aed8b31c 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -590,20 +590,24 @@ static ide_proc_entry_t idedisk_proc[] = {
static void idedisk_prepare_flush(struct request_queue *q, struct request *rq)
{
ide_drive_t *drive = q->queuedata;
- ide_task_t task;
+ ide_task_t *task = kmalloc(sizeof(*task), GFP_ATOMIC);
- memset(&task, 0, sizeof(task));
+ /* FIXME: map struct ide_taskfile on rq->cmd[] */
+ BUG_ON(task == NULL);
+
+ memset(task, 0, sizeof(*task));
if (ide_id_has_flush_cache_ext(drive->id) &&
(drive->capacity64 >= (1UL << 28)))
- task.tf.command = WIN_FLUSH_CACHE_EXT;
+ task->tf.command = WIN_FLUSH_CACHE_EXT;
else
- task.tf.command = WIN_FLUSH_CACHE;
- task.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE;
- task.data_phase = TASKFILE_NO_DATA;
+ task->tf.command = WIN_FLUSH_CACHE;
+ task->tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE |
+ IDE_TFLAG_DYN;
+ task->data_phase = TASKFILE_NO_DATA;
rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
rq->cmd_flags |= REQ_SOFTBARRIER;
- rq->special = &task;
+ rq->special = task;
}
/*
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index e41383f..7153796 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -361,17 +361,21 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
spin_unlock_irqrestore(&ide_lock, flags);
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
- ide_task_t *args = (ide_task_t *) rq->special;
+ ide_task_t *task = (ide_task_t *)rq->special;
+
if (rq->errors == 0)
- rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT);
-
- if (args) {
- struct ide_taskfile *tf = &args->tf;
+ rq->errors = !OK_STAT(stat, READY_STAT, BAD_STAT);
+
+ if (task) {
+ struct ide_taskfile *tf = &task->tf;
tf->error = err;
tf->status = stat;
- ide_tf_read(drive, args);
+ ide_tf_read(drive, task);
+
+ if (task->tf_flags & IDE_TFLAG_DYN)
+ kfree(task);
}
} else if (blk_pm_request(rq)) {
struct request_pm_state *pm = rq->data;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 40a01c3..23fad89 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -906,6 +906,8 @@ enum {
IDE_TFLAG_IN_DEVICE,
/* force 16-bit I/O operations */
IDE_TFLAG_IO_16BIT = (1 << 30),
+ /* ide_task_t was allocated using kmalloc() */
+ IDE_TFLAG_DYN = (1 << 31),
};
struct ide_taskfile {
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