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author | Thomas Gleixner <tglx@tglx.tec.linutronix.de> | 2005-06-26 23:20:36 +0200 |
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committer | Thomas Gleixner <tglx@mtd.linutronix.de> | 2005-06-26 23:20:36 +0200 |
commit | 7ca6448dbfb398bba36eda3c01bc14b86c3675be (patch) | |
tree | 82d934ebf07f22a2c64c3b6d82ec24082878b43a /lib/kernel_lock.c | |
parent | [MTD] NAND: Add Hynix to manufacturer list (diff) | |
parent | [PATCH] ppc32: Fix MPC83xx IPIC external interrupt pending register offset (diff) | |
download | linux-7ca6448dbfb398bba36eda3c01bc14b86c3675be.tar.xz linux-7ca6448dbfb398bba36eda3c01bc14b86c3675be.zip |
Merge with rsync://fileserver/linux
Update to Linus latest
Diffstat (limited to '')
-rw-r--r-- | lib/kernel_lock.c | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c index 99b0ae3d51dd..bd2bc5d887b8 100644 --- a/lib/kernel_lock.c +++ b/lib/kernel_lock.c @@ -9,61 +9,6 @@ #include <linux/module.h> #include <linux/kallsyms.h> -#if defined(CONFIG_PREEMPT) && defined(__smp_processor_id) && \ - defined(CONFIG_DEBUG_PREEMPT) - -/* - * Debugging check. - */ -unsigned int smp_processor_id(void) -{ - unsigned long preempt_count = preempt_count(); - int this_cpu = __smp_processor_id(); - cpumask_t this_mask; - - if (likely(preempt_count)) - goto out; - - if (irqs_disabled()) - goto out; - - /* - * Kernel threads bound to a single CPU can safely use - * smp_processor_id(): - */ - this_mask = cpumask_of_cpu(this_cpu); - - if (cpus_equal(current->cpus_allowed, this_mask)) - goto out; - - /* - * It is valid to assume CPU-locality during early bootup: - */ - if (system_state != SYSTEM_RUNNING) - goto out; - - /* - * Avoid recursion: - */ - preempt_disable(); - - if (!printk_ratelimit()) - goto out_enable; - - printk(KERN_ERR "BUG: using smp_processor_id() in preemptible [%08x] code: %s/%d\n", preempt_count(), current->comm, current->pid); - print_symbol("caller is %s\n", (long)__builtin_return_address(0)); - dump_stack(); - -out_enable: - preempt_enable_no_resched(); -out: - return this_cpu; -} - -EXPORT_SYMBOL(smp_processor_id); - -#endif /* PREEMPT && __smp_processor_id && DEBUG_PREEMPT */ - #ifdef CONFIG_PREEMPT_BKL /* * The 'big kernel semaphore' |