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| author | Serge E. Hallyn <serue@us.ibm.com> | 2006-09-29 02:00:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-29 09:18:12 -0700 |
| commit | fc09561d6392771a392dea55c287de7e849b6b63 (patch) | |
| tree | 8f754252a1e3109c4187f9e6f53f66eaf9486f49 /arch/i386/kernel/apm.c | |
| parent | ca9bda00b4aafc42cd3d1b9d32934463e2993b4c (diff) | |
| download | linux-fc09561d6392771a392dea55c287de7e849b6b63.tar.gz | |
[PATCH] kthread: convert arch/i386/kernel/apm.c
Convert i386 apm.c from kernel_thread(), whose export is deprecated, to kthread API. Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/kernel/apm.c')
| -rw-r--r-- | arch/i386/kernel/apm.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c index ff9ce4b5eaa8..b42f2d914af3 100644 --- a/arch/i386/kernel/apm.c +++ b/arch/i386/kernel/apm.c @@ -225,6 +225,7 @@ #include <linux/smp_lock.h> #include <linux/dmi.h> #include <linux/suspend.h> +#include <linux/kthread.h> #include <asm/system.h> #include <asm/uaccess.h> @@ -402,8 +403,6 @@ static int realmode_power_off = 1; #else static int realmode_power_off; #endif -static int exit_kapmd __read_mostly; -static int kapmd_running __read_mostly; #ifdef CONFIG_APM_ALLOW_INTS static int allow_ints = 1; #else @@ -419,6 +418,8 @@ static const struct desc_struct bad_bios_desc = { 0, 0x00409200 }; static const char driver_version[] = "1.16ac"; /* no spaces */ +static struct task_struct *kapmd_task; + /* * APM event names taken from the APM 1.2 specification. These are * the message codes that the BIOS uses to tell us about events @@ -1423,7 +1424,7 @@ static void apm_mainloop(void) set_current_state(TASK_INTERRUPTIBLE); for (;;) { schedule_timeout(APM_CHECK_TIMEOUT); - if (exit_kapmd) + if (kthread_should_stop()) break; /* * Ok, check all events, check for idle (and mark us sleeping @@ -1706,12 +1707,6 @@ static int apm(void *unused) char * power_stat; char * bat_stat; - kapmd_running = 1; - - daemonize("kapmd"); - - current->flags |= PF_NOFREEZE; - #ifdef CONFIG_SMP /* 2002/08/01 - WT * This is to avoid random crashes at boot time during initialization @@ -1821,7 +1816,6 @@ static int apm(void *unused) console_blank_hook = NULL; #endif } - kapmd_running = 0; return 0; } @@ -2220,7 +2214,7 @@ static int __init apm_init(void) { struct proc_dir_entry *apm_proc; struct desc_struct *gdt; - int ret; + int err; dmi_check_system(apm_dmi_table); @@ -2329,12 +2323,17 @@ static int __init apm_init(void) if (apm_proc) apm_proc->owner = THIS_MODULE; - ret = kernel_thread(apm, NULL, CLONE_KERNEL | SIGCHLD); - if (ret < 0) { - printk(KERN_ERR "apm: disabled - Unable to start kernel thread.\n"); + kapmd_task = kthread_create(apm, NULL, "kapmd"); + if (IS_ERR(kapmd_task)) { + printk(KERN_ERR "apm: disabled - Unable to start kernel " + "thread.\n"); + err = PTR_ERR(kapmd_task); + kapmd_task = NULL; remove_proc_entry("apm", NULL); - return -ENOMEM; + return err; } + kapmd_task->flags |= PF_NOFREEZE; + wake_up_process(kapmd_task); if (num_online_cpus() > 1 && !smp ) { printk(KERN_NOTICE @@ -2384,9 +2383,10 @@ static void __exit apm_exit(void) remove_proc_entry("apm", NULL); if (power_off) pm_power_off = NULL; - exit_kapmd = 1; - while (kapmd_running) - schedule(); + if (kapmd_task) { + kthread_stop(kapmd_task); + kapmd_task = NULL; + } #ifdef CONFIG_PM_LEGACY pm_active = 0; #endif |