[PATCH 13/16] ide-tape: convert to using the new dev_flags

Borislav Petkov
2008-06-29T11:04:32Z

drivers/ide/ide-tape.c | 68 ++++++++++++++++-------------------------------
1 files changed, 23 insertions(+), 45 deletions(-)

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index e60faf3..09d8fc4 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -195,23 +195,6 @@ enum {
#define IDETAPE_BLOCK_DESCRIPTOR 0
#define IDETAPE_CAPABILITIES_PAGE 0x2a

-/* Tape flag bits values. */
-enum {
- IDETAPE_FLAG_IGNORE_DSC = (1 << 0),
- /* 0 When the tape position is unknown */
- IDETAPE_FLAG_ADDRESS_VALID = (1 << 1),
- /* Device already opened */
- IDETAPE_FLAG_BUSY = (1 << 2),
- /* Attempt to auto-detect the current user block size */
- IDETAPE_FLAG_DETECT_BS = (1 << 3),
- /* Currently on a filemark */
- IDETAPE_FLAG_FILEMARK = (1 << 4),
- /* DRQ interrupt device */
- IDETAPE_FLAG_DRQ_INTERRUPT = (1 << 5),
- /* 0 = no tape is loaded, so we don't rewind after ejecting */
- IDETAPE_FLAG_MEDIUM_PRESENT = (1 << 6),
-};
-
/*
* Most of our global data which we need to save even as we leave the driver due
* to an interrupt or a timer event is stored in the struct defined below.
@@ -312,8 +295,6 @@ typedef struct ide_tape_obj {
/* Wasted space in each stage */
int excess_bh_size;

- /* Status/Action flags: long for set_bit */
- unsigned long flags;
/* protects the ide-tape queue */
spinlock_t lock;

@@ -665,7 +646,7 @@ static void ide_tape_callback(ide_drive_t *drive)
if (readpos[0] & 0x4) {
printk(KERN_INFO "ide-tape: Block location is unknown"
"to the tape\n");
- clear_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags);
+ clear_bit(IDE_FLAG_ADDRESS_VALID, &drive->dev_flags);
uptodate = 0;
} else {
debug_log(DBG_SENSE, "Block Location - %u\n",
@@ -673,7 +654,7 @@ static void ide_tape_callback(ide_drive_t *drive)

tape->partition = readpos[1];
tape->first_frame = be32_to_cpu(*(u32 *)&readpos[4]);
- set_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags);
+ set_bit(IDE_FLAG_ADDRESS_VALID, &drive->dev_flags);
}
}

@@ -742,7 +723,6 @@ static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc,
*/
static void idetape_retry_pc(ide_drive_t *drive)
{
- idetape_tape_t *tape = drive->driver_data;
struct ide_atapi_pc *pc;
struct request *rq;

@@ -750,7 +730,7 @@ static void idetape_retry_pc(ide_drive_t *drive)
pc = idetape_next_pc_storage(drive);
rq = idetape_next_rq_storage(drive);
idetape_create_request_sense_cmd(pc);
- set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags);
+ set_bit(IDE_FLAG_IGNORE_DSC, &drive->dev_flags);
idetape_queue_pc_head(drive, pc, rq);
}

@@ -1025,14 +1005,14 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
stat = ide_read_status(drive);

if (!drive->dsc_overlap && !(rq->cmd[13] & REQ_IDETAPE_PC2))
- set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags);
+ set_bit(IDE_FLAG_IGNORE_DSC, &drive->dev_flags);

if (drive->post_reset == 1) {
- set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags);
+ set_bit(IDE_FLAG_IGNORE_DSC, &drive->dev_flags);
drive->post_reset = 0;
}

- if (!test_and_clear_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags) &&
+ if (!test_and_clear_bit(IDE_FLAG_IGNORE_DSC, &drive->dev_flags) &&
(stat & SEEK_STAT) == 0) {
if (postponed_rq == NULL) {
tape->dsc_polling_start = jiffies;
@@ -1075,10 +1055,8 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
return ide_stopped;
}
BUG();
-out:
- if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags))
- pc->flags |= PC_FLAG_DRQ_INTERRUPT;

+out:
return idetape_issue_pc(drive, pc);
}

@@ -1306,7 +1284,7 @@ static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout)
int load_attempted = 0;

/* Wait for the tape to become ready */
- set_bit(IDETAPE_FLAG_MEDIUM_PRESENT, &tape->flags);
+ set_bit(IDE_FLAG_MEDIUM_PRESENT, &drive->dev_flags);
timeout += jiffies;
while (time_before(jiffies, timeout)) {
idetape_create_test_unit_ready_cmd(&pc);
@@ -1399,7 +1377,7 @@ static void __ide_tape_discard_merge_buffer(ide_drive_t *drive)
if (tape->chrdev_dir != IDETAPE_DIR_READ)
return;

- clear_bit(IDETAPE_FLAG_FILEMARK, &tape->flags);
+ clear_bit(IDE_FLAG_FILEMARK, &drive->dev_flags);
tape->merge_bh_size = 0;
if (tape->merge_bh != NULL) {
ide_tape_kfree_buffer(tape);
@@ -1638,7 +1616,7 @@ static int idetape_add_chrdev_read_request(ide_drive_t *drive, int blocks)
debug_log(DBG_PROCS, "Enter %s, %d blocks\n", __func__, blocks);

/* If we are at a filemark, return a read length of 0 */
- if (test_bit(IDETAPE_FLAG_FILEMARK, &tape->flags))
+ if (test_bit(IDE_FLAG_FILEMARK, &drive->dev_flags))
return 0;

idetape_init_read(drive);
@@ -1748,7 +1726,7 @@ static int idetape_space_over_filemarks(ide_drive_t *drive, short mt_op,

if (tape->chrdev_dir == IDETAPE_DIR_READ) {
tape->merge_bh_size = 0;
- if (test_and_clear_bit(IDETAPE_FLAG_FILEMARK, &tape->flags))
+ if (test_and_clear_bit(IDE_FLAG_FILEMARK, &drive->dev_flags))
++count;
ide_tape_discard_merge_buffer(drive, 0);
}
@@ -1803,7 +1781,7 @@ static ssize_t idetape_chrdev_read(struct file *file, char __user *buf,
debug_log(DBG_CHRDEV, "Enter %s, count %Zd\n", __func__, count);

if (tape->chrdev_dir != IDETAPE_DIR_READ) {
- if (test_bit(IDETAPE_FLAG_DETECT_BS, &tape->flags))
+ if (test_bit(IDE_FLAG_DETECT_BS, &drive->dev_flags))
if (count > tape->blk_size &&
(count % tape->blk_size) == 0)
tape->user_bs_factor = count / tape->blk_size;
@@ -1843,7 +1821,7 @@ static ssize_t idetape_chrdev_read(struct file *file, char __user *buf,
tape->merge_bh_size = bytes_read-temp;
}
finish:
- if (!actually_read && test_bit(IDETAPE_FLAG_FILEMARK, &tape->flags)) {
+ if (!actually_read && test_bit(IDE_FLAG_FILEMARK, &drive->dev_flags)) {
debug_log(DBG_SENSE, "%s: spacing over filemark\n", tape->name);

idetape_space_over_filemarks(drive, MTFSF, 1);
@@ -2029,7 +2007,7 @@ static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count)
!IDETAPE_LU_LOAD_MASK);
retval = idetape_queue_pc_tail(drive, &pc);
if (!retval)
- clear_bit(IDETAPE_FLAG_MEDIUM_PRESENT, &tape->flags);
+ clear_bit(IDE_FLAG_MEDIUM_PRESENT, &drive->dev_flags);
return retval;
case MTNOP:
ide_tape_discard_merge_buffer(drive, 0);
@@ -2052,9 +2030,9 @@ static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count)
mt_count % tape->blk_size)
return -EIO;
tape->user_bs_factor = mt_count / tape->blk_size;
- clear_bit(IDETAPE_FLAG_DETECT_BS, &tape->flags);
+ clear_bit(IDE_FLAG_DETECT_BS, &drive->dev_flags);
} else
- set_bit(IDETAPE_FLAG_DETECT_BS, &tape->flags);
+ set_bit(IDE_FLAG_DETECT_BS, &drive->dev_flags);
return 0;
case MTSEEK:
ide_tape_discard_merge_buffer(drive, 0);
@@ -2201,20 +2179,20 @@ static int idetape_chrdev_open(struct inode *inode, struct file *filp)

filp->private_data = tape;

- if (test_and_set_bit(IDETAPE_FLAG_BUSY, &tape->flags)) {
+ if (test_and_set_bit(IDE_FLAG_BUSY, &drive->dev_flags)) {
retval = -EBUSY;
goto out_put_tape;
}

retval = idetape_wait_ready(drive, 60 * HZ);
if (retval) {
- clear_bit(IDETAPE_FLAG_BUSY, &tape->flags);
+ clear_bit(IDE_FLAG_BUSY, &drive->dev_flags);
printk(KERN_ERR "ide-tape: %s: drive not ready\n", tape->name);
goto out_put_tape;
}

idetape_read_position(drive);
- if (!test_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags))
+ if (!test_bit(IDE_FLAG_ADDRESS_VALID, &drive->dev_flags))
(void)idetape_rewind_tape(drive);

/* Read block size and write protect status from drive. */
@@ -2230,7 +2208,7 @@ static int idetape_chrdev_open(struct inode *inode, struct file *filp)
if (tape->write_prot) {
if ((filp->f_flags & O_ACCMODE) == O_WRONLY ||
(filp->f_flags & O_ACCMODE) == O_RDWR) {
- clear_bit(IDETAPE_FLAG_BUSY, &tape->flags);
+ clear_bit(IDE_FLAG_BUSY, &drive->dev_flags);
retval = -EROFS;
goto out_put_tape;
}
@@ -2288,7 +2266,7 @@ static int idetape_chrdev_release(struct inode *inode, struct file *filp)
ide_tape_discard_merge_buffer(drive, 1);
}

- if (minor < 128 && test_bit(IDETAPE_FLAG_MEDIUM_PRESENT, &tape->flags))
+ if (minor < 128 && test_bit(IDE_FLAG_MEDIUM_PRESENT, &drive->dev_flags))
(void) idetape_rewind_tape(drive);
if (tape->chrdev_dir == IDETAPE_DIR_NONE) {
if (tape->door_locked == DOOR_LOCKED) {
@@ -2298,7 +2276,7 @@ static int idetape_chrdev_release(struct inode *inode, struct file *filp)
}
}
}
- clear_bit(IDETAPE_FLAG_BUSY, &tape->flags);
+ clear_bit(IDE_FLAG_BUSY, &drive->dev_flags);
ide_tape_put(tape);
unlock_kernel();
return 0;
@@ -2483,7 +2461,7 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor)

/* Command packet DRQ type */
if (((gcw[0] & 0x60) >> 5) == 1)
- set_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags);
+ set_bit(IDE_FLAG_DRQ_INTERRUPT, &drive->dev_flags);

idetape_get_inquiry_results(drive);
idetape_get_mode_sense_results(drive);
--
1.5.5.4