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-rw-r--r--meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.30-fix-suspend.patch139
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 3932a51ae0..0000000000
--- a/meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.30-fix-suspend.patch
+++ /dev/null
@@ -1,139 +0,0 @@
1From: Rafael J. Wysocki <rjw@suse.com>
2Organization: SUSE
3To: Arjan van de Ven <arjan@linux.intel.com>
4CC: Linus Torvalds <torvalds@linux-foundation.org>
5
6
7OK, updated patch follows, with a changelog.
8
9I've added this check to user.c too, because that code can be called
10independently of the one in disk.c . Also, if resume is user space-driven,
11it's a good idea to wait for all of the device probes to complete before
12continuing.
13
14Thanks,
15Rafael
16
17---
18From: Rafael J. Wysocki <rjw@sisk.pl>
19Subject: PM/Hibernate: Wait for SCSI devices scan to complete during resume
20
21There is a race between resume from hibernation and the asynchronous
22scanning of SCSI devices and to prevent it from happening we need to
23call scsi_complete_async_scans() during resume from hibernation.
24
25In addition, if the resume from hibernation is userland-driven, it's
26better to wait for all device probes in the kernel to complete before
27attempting to open the resume device.
28
29Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
30---
31 drivers/scsi/scsi_priv.h | 3 ---
32 drivers/scsi/scsi_wait_scan.c | 2 +-
33 include/scsi/scsi_scan.h | 11 +++++++++++
34 kernel/power/disk.c | 8 ++++++++
35 kernel/power/user.c | 9 +++++++++
36 5 files changed, 29 insertions(+), 4 deletions(-)
37
38Index: linux-2.6/include/scsi/scsi_scan.h
39===================================================================
40--- /dev/null
41+++ linux-2.6/include/scsi/scsi_scan.h
42@@ -0,0 +1,11 @@
43+#ifndef _SCSI_SCSI_SCAN_H
44+#define _SCSI_SCSI_SCAN_H
45+
46+#ifdef CONFIG_SCSI
47+/* drivers/scsi/scsi_scan.c */
48+extern int scsi_complete_async_scans(void);
49+#else
50+static inline int scsi_complete_async_scans(void) { return 0; }
51+#endif
52+
53+#endif /* _SCSI_SCSI_SCAN_H */
54Index: linux-2.6/drivers/scsi/scsi_priv.h
55===================================================================
56--- linux-2.6.orig/drivers/scsi/scsi_priv.h
57+++ linux-2.6/drivers/scsi/scsi_priv.h
58@@ -38,9 +38,6 @@ static inline void scsi_log_completion(s
59 { };
60 #endif
61
62-/* scsi_scan.c */
63-int scsi_complete_async_scans(void);
64-
65 /* scsi_devinfo.c */
66 extern int scsi_get_device_flags(struct scsi_device *sdev,
67 const unsigned char *vendor,
68Index: linux-2.6/drivers/scsi/scsi_wait_scan.c
69===================================================================
70--- linux-2.6.orig/drivers/scsi/scsi_wait_scan.c
71+++ linux-2.6/drivers/scsi/scsi_wait_scan.c
72@@ -11,7 +11,7 @@
73 */
74
75 #include <linux/module.h>
76-#include "scsi_priv.h"
77+#include <scsi/scsi_scan.h>
78
79 static int __init wait_scan_init(void)
80 {
81Index: linux-2.6/kernel/power/disk.c
82===================================================================
83--- linux-2.6.orig/kernel/power/disk.c
84+++ linux-2.6/kernel/power/disk.c
85@@ -22,5 +22,6 @@
86 #include <linux/console.h>
87 #include <linux/cpu.h>
88 #include <linux/freezer.h>
89+#include <scsi/scsi_scan.h>
90
91 #include "power.h"
92@@ -645,6 +646,13 @@ static int software_resume(void)
93 return 0;
94
95 /*
96+ * We can't depend on SCSI devices being available after loading one of
97+ * their modules if scsi_complete_async_scans() is not called and the
98+ * resume device usually is a SCSI one.
99+ */
100+ scsi_complete_async_scans();
101+
102+ /*
103 * name_to_dev_t() below takes a sysfs buffer mutex when sysfs
104 * is configured into the kernel. Since the regular hibernate
105 * trigger path is via sysfs which takes a buffer mutex before
106Index: linux-2.6/kernel/power/user.c
107===================================================================
108--- linux-2.6.orig/kernel/power/user.c
109+++ linux-2.6/kernel/power/user.c
110@@ -24,6 +24,7 @@
111 #include <linux/cpu.h>
112 #include <linux/freezer.h>
113 #include <linux/smp_lock.h>
114+#include <scsi/scsi_scan.h>
115
116 #include <asm/uaccess.h>
117
118@@ -92,6 +93,7 @@ static int snapshot_open(struct inode *i
119 filp->private_data = data;
120 memset(&data->handle, 0, sizeof(struct snapshot_handle));
121 if ((filp->f_flags & O_ACCMODE) == O_RDONLY) {
122+ /* Hibernating. The image device should be accessible. */
123 data->swap = swsusp_resume_device ?
124 swap_type_of(swsusp_resume_device, 0, NULL) : -1;
125 data->mode = O_RDONLY;
126@@ -99,6 +101,13 @@ static int snapshot_open(struct inode *i
127 if (error)
128 pm_notifier_call_chain(PM_POST_HIBERNATION);
129 } else {
130+ /*
131+ * Resuming. We may need to wait for the image device to
132+ * appear.
133+ */
134+ wait_for_device_probe();
135+ scsi_complete_async_scans();
136+
137 data->swap = -1;
138 data->mode = O_WRONLY;
139 error = pm_notifier_call_chain(PM_RESTORE_PREPARE);