diff options
author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-11-03 01:10:07 -0500 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-11-03 01:10:07 -0500 |
commit | 7a53c7f56bbfc9b0ef892e68f5cfae3d902544d1 (patch) | |
tree | 19dec256fc80ad06d631ece78b9eb68a457ce66b /kernel/power | |
parent | e57130698fe3dd2b7d617d90bbf86474473cb40c (diff) | |
parent | 012abeea669ea49636cf952d13298bb68654146a (diff) |
Merge commit 'v2.6.32-rc5' into for-linus
Diffstat (limited to 'kernel/power')
-rw-r--r-- | kernel/power/console.c | 63 | ||||
-rw-r--r-- | kernel/power/process.c | 1 | ||||
-rw-r--r-- | kernel/power/snapshot.c | 2 | ||||
-rw-r--r-- | kernel/power/swap.c | 1 |
4 files changed, 7 insertions, 60 deletions
diff --git a/kernel/power/console.c b/kernel/power/console.c index a3961b205de7..5187136fe1de 100644 --- a/kernel/power/console.c +++ b/kernel/power/console.c | |||
@@ -14,56 +14,13 @@ | |||
14 | #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) | 14 | #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) |
15 | 15 | ||
16 | static int orig_fgconsole, orig_kmsg; | 16 | static int orig_fgconsole, orig_kmsg; |
17 | static int disable_vt_switch; | ||
18 | |||
19 | /* | ||
20 | * Normally during a suspend, we allocate a new console and switch to it. | ||
21 | * When we resume, we switch back to the original console. This switch | ||
22 | * can be slow, so on systems where the framebuffer can handle restoration | ||
23 | * of video registers anyways, there's little point in doing the console | ||
24 | * switch. This function allows you to disable it by passing it '0'. | ||
25 | */ | ||
26 | void pm_set_vt_switch(int do_switch) | ||
27 | { | ||
28 | acquire_console_sem(); | ||
29 | disable_vt_switch = !do_switch; | ||
30 | release_console_sem(); | ||
31 | } | ||
32 | EXPORT_SYMBOL(pm_set_vt_switch); | ||
33 | 17 | ||
34 | int pm_prepare_console(void) | 18 | int pm_prepare_console(void) |
35 | { | 19 | { |
36 | acquire_console_sem(); | 20 | orig_fgconsole = vt_move_to_console(SUSPEND_CONSOLE, 1); |
37 | 21 | if (orig_fgconsole < 0) | |
38 | if (disable_vt_switch) { | ||
39 | release_console_sem(); | ||
40 | return 0; | ||
41 | } | ||
42 | |||
43 | orig_fgconsole = fg_console; | ||
44 | |||
45 | if (vc_allocate(SUSPEND_CONSOLE)) { | ||
46 | /* we can't have a free VC for now. Too bad, | ||
47 | * we don't want to mess the screen for now. */ | ||
48 | release_console_sem(); | ||
49 | return 1; | 22 | return 1; |
50 | } | ||
51 | 23 | ||
52 | if (set_console(SUSPEND_CONSOLE)) { | ||
53 | /* | ||
54 | * We're unable to switch to the SUSPEND_CONSOLE. | ||
55 | * Let the calling function know so it can decide | ||
56 | * what to do. | ||
57 | */ | ||
58 | release_console_sem(); | ||
59 | return 1; | ||
60 | } | ||
61 | release_console_sem(); | ||
62 | |||
63 | if (vt_waitactive(SUSPEND_CONSOLE)) { | ||
64 | pr_debug("Suspend: Can't switch VCs."); | ||
65 | return 1; | ||
66 | } | ||
67 | orig_kmsg = kmsg_redirect; | 24 | orig_kmsg = kmsg_redirect; |
68 | kmsg_redirect = SUSPEND_CONSOLE; | 25 | kmsg_redirect = SUSPEND_CONSOLE; |
69 | return 0; | 26 | return 0; |
@@ -71,19 +28,9 @@ int pm_prepare_console(void) | |||
71 | 28 | ||
72 | void pm_restore_console(void) | 29 | void pm_restore_console(void) |
73 | { | 30 | { |
74 | acquire_console_sem(); | 31 | if (orig_fgconsole >= 0) { |
75 | if (disable_vt_switch) { | 32 | vt_move_to_console(orig_fgconsole, 0); |
76 | release_console_sem(); | 33 | kmsg_redirect = orig_kmsg; |
77 | return; | ||
78 | } | ||
79 | set_console(orig_fgconsole); | ||
80 | release_console_sem(); | ||
81 | |||
82 | if (vt_waitactive(orig_fgconsole)) { | ||
83 | pr_debug("Resume: Can't switch VCs."); | ||
84 | return; | ||
85 | } | 34 | } |
86 | |||
87 | kmsg_redirect = orig_kmsg; | ||
88 | } | 35 | } |
89 | #endif | 36 | #endif |
diff --git a/kernel/power/process.c b/kernel/power/process.c index da2072d73811..cc2e55373b68 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c | |||
@@ -9,6 +9,7 @@ | |||
9 | #undef DEBUG | 9 | #undef DEBUG |
10 | 10 | ||
11 | #include <linux/interrupt.h> | 11 | #include <linux/interrupt.h> |
12 | #include <linux/oom.h> | ||
12 | #include <linux/suspend.h> | 13 | #include <linux/suspend.h> |
13 | #include <linux/module.h> | 14 | #include <linux/module.h> |
14 | #include <linux/syscalls.h> | 15 | #include <linux/syscalls.h> |
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index 97955b0e44f4..36cb168e4330 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c | |||
@@ -619,7 +619,7 @@ __register_nosave_region(unsigned long start_pfn, unsigned long end_pfn, | |||
619 | BUG_ON(!region); | 619 | BUG_ON(!region); |
620 | } else | 620 | } else |
621 | /* This allocation cannot fail */ | 621 | /* This allocation cannot fail */ |
622 | region = alloc_bootmem_low(sizeof(struct nosave_region)); | 622 | region = alloc_bootmem(sizeof(struct nosave_region)); |
623 | region->start_pfn = start_pfn; | 623 | region->start_pfn = start_pfn; |
624 | region->end_pfn = end_pfn; | 624 | region->end_pfn = end_pfn; |
625 | list_add_tail(®ion->list, &nosave_regions); | 625 | list_add_tail(®ion->list, &nosave_regions); |
diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 8ba052c86d48..b101cdc4df3f 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c | |||
@@ -13,7 +13,6 @@ | |||
13 | 13 | ||
14 | #include <linux/module.h> | 14 | #include <linux/module.h> |
15 | #include <linux/file.h> | 15 | #include <linux/file.h> |
16 | #include <linux/utsname.h> | ||
17 | #include <linux/delay.h> | 16 | #include <linux/delay.h> |
18 | #include <linux/bitops.h> | 17 | #include <linux/bitops.h> |
19 | #include <linux/genhd.h> | 18 | #include <linux/genhd.h> |