apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

ide: add device flags

Browse Source 
Add 'unsigned long dev_flags' to ide_drive_t and convert bitfields
to IDE_DFLAG_* flags.

While at it:
- IDE_DFLAG_ADDRESSING -> IDE_DFLAG_LBA48
- fixup some comments
- remove needless g->flags zeroing from ide*_probe()

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-10-13 21:39:36 +02:00
parent be3c096ebd
commit 97100fc816
26 changed files with 370 additions and 243 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/ide/ide-io.c
+34 -21
View File
@@ -184,7 +184,8 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
if (drive->media != ide_disk)
break;
/* Not supported? Switch to next step now. */
if (!drive->wcache || ata_id_flush_enabled(drive->id) == 0) {
if (ata_id_flush_enabled(drive->id) == 0 ||
(drive->dev_flags & IDE_DFLAG_WCACHE) == 0) {
ide_complete_power_step(drive, rq, 0, 0);
return ide_stopped;
}
@@ -222,7 +223,7 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
if (drive->hwif->dma_ops == NULL)
break;
/*
* TODO: respect ->using_dma setting
* TODO: respect IDE_DFLAG_USING_DMA
*/
ide_set_dma(drive);
break;
@@ -287,7 +288,7 @@ static void ide_complete_pm_request (ide_drive_t *drive, struct request *rq)
if (blk_pm_suspend_request(rq)) {
blk_stop_queue(drive->queue);
} else {
drive->blocked = 0;
drive->dev_flags &= ~IDE_DFLAG_BLOCKED;
blk_start_queue(drive->queue);
}
HWGROUP(drive)->rq = NULL;
@@ -374,7 +375,8 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8
{
ide_hwif_t *hwif = drive->hwif;
if ((stat & ATA_BUSY) || ((stat & ATA_DF) && !drive->nowerr)) {
if ((stat & ATA_BUSY) ||
((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
/* other bits are useless when BUSY */
rq->errors |= ERROR_RESET;
} else if (stat & ATA_ERR) {
@@ -428,7 +430,8 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u
{
ide_hwif_t *hwif = drive->hwif;
if ((stat & ATA_BUSY) || ((stat & ATA_DF) && !drive->nowerr)) {
if ((stat & ATA_BUSY) ||
((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
/* other bits are useless when BUSY */
rq->errors |= ERROR_RESET;
} else {
@@ -607,7 +610,7 @@ static ide_startstop_t do_special (ide_drive_t *drive)
if (set_pio_mode_abuse(drive->hwif, req_pio)) {
/*
* take ide_lock for drive->[no_]unmask/[no_]io_32bit
* take ide_lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT
*/
if (req_pio == 8 || req_pio == 9) {
unsigned long flags;
@@ -618,7 +621,8 @@ static ide_startstop_t do_special (ide_drive_t *drive)
} else
port_ops->set_pio_mode(drive, req_pio);
} else {
int keep_dma = drive->using_dma;
int keep_dma =
!!(drive->dev_flags & IDE_DFLAG_USING_DMA);
ide_set_pio(drive, req_pio);
@@ -775,7 +779,7 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq)
if (blk_pm_suspend_request(rq) &&
pm->pm_step == ide_pm_state_start_suspend)
/* Mark drive blocked when starting the suspend sequence. */
drive->blocked = 1;
drive->dev_flags |= IDE_DFLAG_BLOCKED;
else if (blk_pm_resume_request(rq) &&
pm->pm_step == ide_pm_state_start_resume) {
/*
@@ -895,7 +899,7 @@ void ide_stall_queue (ide_drive_t *drive, unsigned long timeout)
if (timeout > WAIT_WORSTCASE)
timeout = WAIT_WORSTCASE;
drive->sleep = timeout + jiffies;
drive->sleeping = 1;
drive->dev_flags |= IDE_DFLAG_SLEEPING;
}
EXPORT_SYMBOL(ide_stall_queue);
@@ -935,18 +939,23 @@ repeat:
}
do {
if ((!drive->sleeping || time_after_eq(jiffies, drive->sleep))
&& !elv_queue_empty(drive->queue)) {
if (!best
|| (drive->sleeping && (!best->sleeping || time_before(drive->sleep, best->sleep)))
|| (!best->sleeping && time_before(WAKEUP(drive), WAKEUP(best))))
{
u8 dev_s = !!(drive->dev_flags & IDE_DFLAG_SLEEPING);
u8 best_s = (best && !!(best->dev_flags & IDE_DFLAG_SLEEPING));
if ((dev_s == 0 || time_after_eq(jiffies, drive->sleep)) &&
!elv_queue_empty(drive->queue)) {
if (best == NULL ||
(dev_s && (best_s == 0 || time_before(drive->sleep, best->sleep))) ||
(best_s == 0 && time_before(WAKEUP(drive), WAKEUP(best)))) {
if (!blk_queue_plugged(drive->queue))
best = drive;
}
}
} while ((drive = drive->next) != hwgroup->drive);
if (best && best->nice1 && !best->sleeping && best != hwgroup->drive && best->service_time > WAIT_MIN_SLEEP) {
if (best && (best->dev_flags & IDE_DFLAG_NICE1) &&
(best->dev_flags & IDE_DFLAG_SLEEPING) == 0 &&
best != hwgroup->drive && best->service_time > WAIT_MIN_SLEEP) {
long t = (signed long)(WAKEUP(best) - jiffies);
if (t >= WAIT_MIN_SLEEP) {
/*
@@ -955,7 +964,7 @@ repeat:
*/
drive = best->next;
do {
if (!drive->sleeping
if ((drive->dev_flags & IDE_DFLAG_SLEEPING) == 0
&& time_before(jiffies - best->service_time, WAKEUP(drive))
&& time_before(WAKEUP(drive), jiffies + t))
{
@@ -1026,7 +1035,9 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
hwgroup->rq = NULL;
drive = hwgroup->drive;
do {
if (drive->sleeping && (!sleeping || time_before(drive->sleep, sleep))) {
if ((drive->dev_flags & IDE_DFLAG_SLEEPING) &&
(sleeping == 0 ||
time_before(drive->sleep, sleep))) {
sleeping = 1;
sleep = drive->sleep;
}
@@ -1075,7 +1086,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
}
hwgroup->hwif = hwif;
hwgroup->drive = drive;
drive->sleeping = 0;
drive->dev_flags &= ~IDE_DFLAG_SLEEPING;
drive->service_start = jiffies;
if (blk_queue_plugged(drive->queue)) {
@@ -1109,7 +1120,9 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
* We count how many times we loop here to make sure we service
* all drives in the hwgroup without looping for ever
*/
if (drive->blocked && !blk_pm_request(rq) && !(rq->cmd_flags & REQ_PREEMPT)) {
if ((drive->dev_flags & IDE_DFLAG_BLOCKED) &&
blk_pm_request(rq) == 0 &&
(rq->cmd_flags & REQ_PREEMPT) == 0) {
drive = drive->next ? drive->next : hwgroup->drive;
if (loops++ < 4 && !blk_queue_plugged(drive->queue))
goto again;
@@ -1491,7 +1504,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
*/
hwif->ide_dma_clear_irq(drive);
if (drive->unmask)
if (drive->dev_flags & IDE_DFLAG_UNMASK)
local_irq_enable_in_hardirq();
/* service this interrupt, may set handler for next interrupt */
startstop = handler(drive);