diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-10-25 17:30:53 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-10-25 17:30:53 +0100 |
commit | 0b9e31e9264f1bad89856afb96da1688292f13b4 (patch) | |
tree | 7a9e9b6456dce993efeed8734de0a15a1f16ae94 /kernel/power/console.c | |
parent | cf82ff7ea7695b0e82ba07bc5e9f1bd03a74e1aa (diff) | |
parent | 964fe080d94db82a3268443e9b9ece4c60246414 (diff) |
Merge branch 'linus' into sched/core
Conflicts:
fs/proc/array.c
Merge reason: resolve conflict and queue up dependent patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/power/console.c')
-rw-r--r-- | kernel/power/console.c | 63 |
1 files changed, 5 insertions, 58 deletions
diff --git a/kernel/power/console.c b/kernel/power/console.c index a3961b205de..5187136fe1d 100644 --- a/kernel/power/console.c +++ b/kernel/power/console.c @@ -14,56 +14,13 @@ #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) static int orig_fgconsole, orig_kmsg; -static int disable_vt_switch; - -/* - * Normally during a suspend, we allocate a new console and switch to it. - * When we resume, we switch back to the original console. This switch - * can be slow, so on systems where the framebuffer can handle restoration - * of video registers anyways, there's little point in doing the console - * switch. This function allows you to disable it by passing it '0'. - */ -void pm_set_vt_switch(int do_switch) -{ - acquire_console_sem(); - disable_vt_switch = !do_switch; - release_console_sem(); -} -EXPORT_SYMBOL(pm_set_vt_switch); int pm_prepare_console(void) { - acquire_console_sem(); - - if (disable_vt_switch) { - release_console_sem(); - return 0; - } - - orig_fgconsole = fg_console; - - if (vc_allocate(SUSPEND_CONSOLE)) { - /* we can't have a free VC for now. Too bad, - * we don't want to mess the screen for now. */ - release_console_sem(); + orig_fgconsole = vt_move_to_console(SUSPEND_CONSOLE, 1); + if (orig_fgconsole < 0) return 1; - } - if (set_console(SUSPEND_CONSOLE)) { - /* - * We're unable to switch to the SUSPEND_CONSOLE. - * Let the calling function know so it can decide - * what to do. - */ - release_console_sem(); - return 1; - } - release_console_sem(); - - if (vt_waitactive(SUSPEND_CONSOLE)) { - pr_debug("Suspend: Can't switch VCs."); - return 1; - } orig_kmsg = kmsg_redirect; kmsg_redirect = SUSPEND_CONSOLE; return 0; @@ -71,19 +28,9 @@ int pm_prepare_console(void) void pm_restore_console(void) { - acquire_console_sem(); - if (disable_vt_switch) { - release_console_sem(); - return; - } - set_console(orig_fgconsole); - release_console_sem(); - - if (vt_waitactive(orig_fgconsole)) { - pr_debug("Resume: Can't switch VCs."); - return; + if (orig_fgconsole >= 0) { + vt_move_to_console(orig_fgconsole, 0); + kmsg_redirect = orig_kmsg; } - - kmsg_redirect = orig_kmsg; } #endif |