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kexec jump: clean up #ifdef and comments

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Move if (kexec_image->preserve_context) { ...  } into #ifdef
CONFIG_KEXEC_JUMP to make code looks cleaner.

Fix no longer correct comments of kernel_kexec().

Signed-off-by: Huang Ying <[email protected]>
Acked-by: Vivek Goyal <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Vivek Goyal <[email protected]>
Cc: Ingo Molnar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Huang Ying 2008-08-15 00:40:21 -07:00 • committed by Linus Torvalds
commit 7ade3fcc1f
1 changed files with 8 additions and 9 deletions
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17
kernel/kexec.c
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@ -1426,11 +1426,9 @@ static int __init crash_save_vmcoreinfo_init(void)
module_init(crash_save_vmcoreinfo_init)
/**
* kernel_kexec - reboot the system
*
* Move into place and start executing a preloaded standalone
* executable. If nothing was preloaded return an error.
/*
* Move into place and start executing a preloaded standalone
* executable. If nothing was preloaded return an error.
*/
int kernel_kexec(void)
{
@ -1443,8 +1441,8 @@ int kernel_kexec(void)
goto Unlock;
}
if (kexec_image->preserve_context) {
#ifdef CONFIG_KEXEC_JUMP
if (kexec_image->preserve_context) {
mutex_lock(&pm_mutex);
pm_prepare_console();
error = freeze_processes();
@ -1471,8 +1469,9 @@ int kernel_kexec(void)
if (error)
goto Enable_irqs;
save_processor_state();
} else
#endif
} else {
{
blocking_notifier_call_chain(&reboot_notifier_list,
SYS_RESTART, NULL);
system_state = SYSTEM_RESTART;
@ -1484,8 +1483,8 @@ int kernel_kexec(void)
machine_kexec(kexec_image);
if (kexec_image->preserve_context) {
#ifdef CONFIG_KEXEC_JUMP
if (kexec_image->preserve_context) {
restore_processor_state();
device_power_up(PMSG_RESTORE);
Enable_irqs:
@ -1499,8 +1498,8 @@ int kernel_kexec(void)
Restore_console:
pm_restore_console();
mutex_unlock(&pm_mutex);
#endif
}
#endif
Unlock:
if (!xchg(&kexec_lock, 0))