diff options
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 25 | ||||
| -rw-r--r-- | drivers/ata/libata-core.c | 6 | ||||
| -rw-r--r-- | drivers/ata/libata-scsi.c | 9 | ||||
| -rw-r--r-- | drivers/ata/libata.h | 1 |
4 files changed, 16 insertions, 25 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 498ff31f3aa1..5c8695a3d139 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -328,21 +328,20 @@ Who: Adrian Bunk <bunk@stusta.de> --------------------------- -What: libata.spindown_compat module parameter +What: libata spindown skipping and warning When: Dec 2008 -Why: halt(8) synchronizes caches for and spins down libata disks - because libata didn't use to spin down disk on system halt - (only synchronized caches). - Spin down on system halt is now implemented and can be tested - using sysfs node /sys/class/scsi_disk/h:c:i:l/manage_start_stop. +Why: Some halt(8) implementations synchronize caches for and spin + down libata disks because libata didn't use to spin down disk on + system halt (only synchronized caches). + Spin down on system halt is now implemented. sysfs node + /sys/class/scsi_disk/h:c:i:l/manage_start_stop is present if + spin down support is available. Because issuing spin down command to an already spun down disk - makes some disks spin up just to spin down again, the old - behavior needs to be maintained till userspace tool is updated - to check the sysfs node and not to spin down disks with the - node set to one. - This module parameter is to give userspace tool the time to - get updated and should be removed after userspace is - reasonably updated. + makes some disks spin up just to spin down again, libata tracks + device spindown status to skip the extra spindown command and + warn about it. + This is to give userspace tools the time to get updated and will + be removed after userspace is reasonably updated. Who: Tejun Heo <htejun@gmail.com> --------------------------- diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index d5939e659cbb..d3ea7f55283c 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -101,12 +101,6 @@ int libata_noacpi = 1; module_param_named(noacpi, libata_noacpi, int, 0444); MODULE_PARM_DESC(noacpi, "Disables the use of ACPI in suspend/resume when set"); -int ata_spindown_compat = 1; -module_param_named(spindown_compat, ata_spindown_compat, int, 0644); -MODULE_PARM_DESC(spindown_compat, "Enable backward compatible spindown " - "behavior. Will be removed. More info can be found in " - "Documentation/feature-removal-schedule.txt\n"); - MODULE_AUTHOR("Jeff Garzik"); MODULE_DESCRIPTION("Library module for ATA devices"); MODULE_LICENSE("GPL"); diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index b6a1de8fad5b..242c43eef807 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -893,7 +893,7 @@ int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth) return queue_depth; } -/* XXX: for ata_spindown_compat */ +/* XXX: for spindown warning */ static void ata_delayed_done_timerfn(unsigned long arg) { struct scsi_cmnd *scmd = (void *)arg; @@ -901,7 +901,7 @@ static void ata_delayed_done_timerfn(unsigned long arg) scmd->scsi_done(scmd); } -/* XXX: for ata_spindown_compat */ +/* XXX: for spindown warning */ static void ata_delayed_done(struct scsi_cmnd *scmd) { static struct timer_list timer; @@ -966,8 +966,7 @@ static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc) * removed. Read Documentation/feature-removal-schedule.txt * for more info. */ - if (ata_spindown_compat && - (qc->dev->flags & ATA_DFLAG_SPUNDOWN) && + if ((qc->dev->flags & ATA_DFLAG_SPUNDOWN) && (system_state == SYSTEM_HALT || system_state == SYSTEM_POWER_OFF)) { static unsigned long warned = 0; @@ -1395,7 +1394,7 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc) } } - /* XXX: track spindown state for spindown_compat */ + /* XXX: track spindown state for spindown skipping and warning */ if (unlikely(qc->tf.command == ATA_CMD_STANDBY || qc->tf.command == ATA_CMD_STANDBYNOW1)) qc->dev->flags |= ATA_DFLAG_SPUNDOWN; diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 13cb0c9af68d..5e2466658420 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -58,7 +58,6 @@ extern int atapi_enabled; extern int atapi_dmadir; extern int libata_fua; extern int libata_noacpi; -extern int ata_spindown_compat; extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev); extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, u64 block, u32 n_block, unsigned int tf_flags, |