diff options
Diffstat (limited to 'meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.30-fix-suspend.patch')
-rw-r--r-- | meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.30-fix-suspend.patch | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.30-fix-suspend.patch b/meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.30-fix-suspend.patch deleted file mode 100644 index 3932a51ae..000000000 --- a/meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.30-fix-suspend.patch +++ /dev/null @@ -1,139 +0,0 @@ -From: Rafael J. Wysocki <rjw@suse.com> -Organization: SUSE -To: Arjan van de Ven <arjan@linux.intel.com> -CC: Linus Torvalds <torvalds@linux-foundation.org> - - -OK, updated patch follows, with a changelog. - -I've added this check to user.c too, because that code can be called -independently of the one in disk.c . Also, if resume is user space-driven, -it's a good idea to wait for all of the device probes to complete before -continuing. - -Thanks, -Rafael - ---- -From: Rafael J. Wysocki <rjw@sisk.pl> -Subject: PM/Hibernate: Wait for SCSI devices scan to complete during resume - -There is a race between resume from hibernation and the asynchronous -scanning of SCSI devices and to prevent it from happening we need to -call scsi_complete_async_scans() during resume from hibernation. - -In addition, if the resume from hibernation is userland-driven, it's -better to wait for all device probes in the kernel to complete before -attempting to open the resume device. - -Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> ---- - drivers/scsi/scsi_priv.h | 3 --- - drivers/scsi/scsi_wait_scan.c | 2 +- - include/scsi/scsi_scan.h | 11 +++++++++++ - kernel/power/disk.c | 8 ++++++++ - kernel/power/user.c | 9 +++++++++ - 5 files changed, 29 insertions(+), 4 deletions(-) - -Index: linux-2.6/include/scsi/scsi_scan.h -=================================================================== ---- /dev/null -+++ linux-2.6/include/scsi/scsi_scan.h -@@ -0,0 +1,11 @@ -+#ifndef _SCSI_SCSI_SCAN_H -+#define _SCSI_SCSI_SCAN_H -+ -+#ifdef CONFIG_SCSI -+/* drivers/scsi/scsi_scan.c */ -+extern int scsi_complete_async_scans(void); -+#else -+static inline int scsi_complete_async_scans(void) { return 0; } -+#endif -+ -+#endif /* _SCSI_SCSI_SCAN_H */ -Index: linux-2.6/drivers/scsi/scsi_priv.h -=================================================================== ---- linux-2.6.orig/drivers/scsi/scsi_priv.h -+++ linux-2.6/drivers/scsi/scsi_priv.h -@@ -38,9 +38,6 @@ static inline void scsi_log_completion(s - { }; - #endif - --/* scsi_scan.c */ --int scsi_complete_async_scans(void); -- - /* scsi_devinfo.c */ - extern int scsi_get_device_flags(struct scsi_device *sdev, - const unsigned char *vendor, -Index: linux-2.6/drivers/scsi/scsi_wait_scan.c -=================================================================== ---- linux-2.6.orig/drivers/scsi/scsi_wait_scan.c -+++ linux-2.6/drivers/scsi/scsi_wait_scan.c -@@ -11,7 +11,7 @@ - */ - - #include <linux/module.h> --#include "scsi_priv.h" -+#include <scsi/scsi_scan.h> - - static int __init wait_scan_init(void) - { -Index: linux-2.6/kernel/power/disk.c -=================================================================== ---- linux-2.6.orig/kernel/power/disk.c -+++ linux-2.6/kernel/power/disk.c -@@ -22,5 +22,6 @@ - #include <linux/console.h> - #include <linux/cpu.h> - #include <linux/freezer.h> -+#include <scsi/scsi_scan.h> - - #include "power.h" -@@ -645,6 +646,13 @@ static int software_resume(void) - return 0; - - /* -+ * We can't depend on SCSI devices being available after loading one of -+ * their modules if scsi_complete_async_scans() is not called and the -+ * resume device usually is a SCSI one. -+ */ -+ scsi_complete_async_scans(); -+ -+ /* - * name_to_dev_t() below takes a sysfs buffer mutex when sysfs - * is configured into the kernel. Since the regular hibernate - * trigger path is via sysfs which takes a buffer mutex before -Index: linux-2.6/kernel/power/user.c -=================================================================== ---- linux-2.6.orig/kernel/power/user.c -+++ linux-2.6/kernel/power/user.c -@@ -24,6 +24,7 @@ - #include <linux/cpu.h> - #include <linux/freezer.h> - #include <linux/smp_lock.h> -+#include <scsi/scsi_scan.h> - - #include <asm/uaccess.h> - -@@ -92,6 +93,7 @@ static int snapshot_open(struct inode *i - filp->private_data = data; - memset(&data->handle, 0, sizeof(struct snapshot_handle)); - if ((filp->f_flags & O_ACCMODE) == O_RDONLY) { -+ /* Hibernating. The image device should be accessible. */ - data->swap = swsusp_resume_device ? - swap_type_of(swsusp_resume_device, 0, NULL) : -1; - data->mode = O_RDONLY; -@@ -99,6 +101,13 @@ static int snapshot_open(struct inode *i - if (error) - pm_notifier_call_chain(PM_POST_HIBERNATION); - } else { -+ /* -+ * Resuming. We may need to wait for the image device to -+ * appear. -+ */ -+ wait_for_device_probe(); -+ scsi_complete_async_scans(); -+ - data->swap = -1; - data->mode = O_WRONLY; - error = pm_notifier_call_chain(PM_RESTORE_PREPARE); |