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authorNigel Cunningham <ncunningham@cyclades.com>2006-03-23 23:22:16 +1000
committerJeff Garzik <jeff@garzik.org>2006-03-24 09:51:36 -0500
commit082776e4be791736c32baf818e50f501a7f83819 (patch)
tree508fe750353ccd8f6a77cf2c882c15ab20a1e63e /include
parent83206a2903fd2ddb1761d906b2b3b3de17ef87f1 (diff)
downloadlwn-082776e4be791736c32baf818e50f501a7f83819.tar.gz
lwn-082776e4be791736c32baf818e50f501a7f83819.zip
[PATCH] Make libata not powerdown drivers on PM_EVENT_FREEZE.
At the moment libata doesn't pass pm_message_t down ata_device_suspend. This causes drives to be powered down when we just want a freeze, causing unnecessary wear and tear. This patch gets pm_message_t passed down so that it can be used to determine whether to power down the drive. Signed-off-by: Nigel Cunningham <nigel@suspend2.net> drivers/scsi/libata-core.c | 5 +++-- drivers/scsi/libata-scsi.c | 4 ++-- drivers/scsi/scsi_sysfs.c | 2 +- include/linux/libata.h | 4 ++-- include/scsi/scsi_host.h | 2 +- 5 files changed, 9 insertions(+), 8 deletions(-) Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/libata.h4
-rw-r--r--include/scsi/scsi_host.h2
2 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index fbe8ba212598..c52f13498556 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -520,9 +520,9 @@ extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
extern int ata_scsi_release(struct Scsi_Host *host);
extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
extern int ata_scsi_device_resume(struct scsi_device *);
-extern int ata_scsi_device_suspend(struct scsi_device *);
+extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t state);
extern int ata_device_resume(struct ata_port *, struct ata_device *);
-extern int ata_device_suspend(struct ata_port *, struct ata_device *);
+extern int ata_device_suspend(struct ata_port *, struct ata_device *, pm_message_t state);
extern int ata_ratelimit(void);
extern unsigned int ata_busy_sleep(struct ata_port *ap,
unsigned long timeout_pat,
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index a6cf3e535c0b..dc6862d09e53 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -286,7 +286,7 @@ struct scsi_host_template {
* suspend support
*/
int (*resume)(struct scsi_device *);
- int (*suspend)(struct scsi_device *);
+ int (*suspend)(struct scsi_device *, pm_message_t state);
/*
* Name of proc directory