Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1f503e7743df91eb6f63af27c310c557edfc3307 Commit: 1f503e7743df91eb6f63af27c310c557edfc3307 Parent: 66d16ed45d19600abd72dbd55bd2018437b24b73 Author: Akinobu Mita <[EMAIL PROTECTED]> AuthorDate: Fri Oct 19 20:35:03 2007 +0200 Committer: Thomas Gleixner <[EMAIL PROTECTED]> CommitDate: Fri Oct 19 20:35:03 2007 +0200
i386: do cpuid_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE. Do cpuid_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE. [ tglx: arch/x86 adaptation ] Cc: "H. Peter Anvin" <[EMAIL PROTECTED]> Signed-off-by: Akinobu Mita <[EMAIL PROTECTED]> Signed-off-by: Andi Kleen <[EMAIL PROTECTED]> Cc: Gautham R Shenoy <[EMAIL PROTECTED]> Cc: Oleg Nesterov <[EMAIL PROTECTED]> Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]> Signed-off-by: Thomas Gleixner <[EMAIL PROTECTED]> --- arch/x86/kernel/cpuid.c | 32 +++++++++++++++++++------------- 1 files changed, 19 insertions(+), 13 deletions(-) diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c index 70dcf91..2086c72 100644 --- a/arch/x86/kernel/cpuid.c +++ b/arch/x86/kernel/cpuid.c @@ -134,15 +134,18 @@ static const struct file_operations cpuid_fops = { .open = cpuid_open, }; -static int __cpuinit cpuid_device_create(int i) +static __cpuinit int cpuid_device_create(int cpu) { - int err = 0; struct device *dev; - dev = device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, i), "cpu%d",i); - if (IS_ERR(dev)) - err = PTR_ERR(dev); - return err; + dev = device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, cpu), + "cpu%d", cpu); + return IS_ERR(dev) ? PTR_ERR(dev) : 0; +} + +static void cpuid_device_destroy(int cpu) +{ + device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu)); } static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb, @@ -150,18 +153,21 @@ static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb, void *hcpu) { unsigned int cpu = (unsigned long)hcpu; + int err = 0; switch (action) { - case CPU_ONLINE: - case CPU_ONLINE_FROZEN: - cpuid_device_create(cpu); + case CPU_UP_PREPARE: + case CPU_UP_PREPARE_FROZEN: + err = cpuid_device_create(cpu); break; + case CPU_UP_CANCELED: + case CPU_UP_CANCELED_FROZEN: case CPU_DEAD: case CPU_DEAD_FROZEN: - device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu)); + cpuid_device_destroy(cpu); break; } - return NOTIFY_OK; + return err ? NOTIFY_BAD : NOTIFY_OK; } static struct notifier_block __cpuinitdata cpuid_class_cpu_notifier = @@ -198,7 +204,7 @@ static int __init cpuid_init(void) out_class: i = 0; for_each_online_cpu(i) { - device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, i)); + cpuid_device_destroy(i); } class_destroy(cpuid_class); out_chrdev: @@ -212,7 +218,7 @@ static void __exit cpuid_exit(void) int cpu = 0; for_each_online_cpu(cpu) - device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu)); + cpuid_device_destroy(cpu); class_destroy(cpuid_class); unregister_chrdev(CPUID_MAJOR, "cpu/cpuid"); unregister_hotcpu_notifier(&cpuid_class_cpu_notifier); - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html