diff options
author | Jeff Dike <jdike@addtoit.com> | 2007-10-16 01:27:00 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:43:05 -0700 |
commit | ba180fd437156f7fd8cfb2fdd021d949eeef08d6 (patch) | |
tree | b9f38b9cdd7a5b1aacf00341d1948314663c5871 /arch/um/kernel/process.c | |
parent | 77bf4400319db9d2a8af6b00c2be6faa0f3d07cb (diff) |
uml: style fixes pass 3
Formatting changes in the files which have been changed in the course
of folding foo_skas functions into their callers. These include:
copyright updates
header file trimming
style fixes
adding severity to printks
These changes should be entirely non-functional.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/kernel/process.c')
-rw-r--r-- | arch/um/kernel/process.c | 110 |
1 files changed, 47 insertions, 63 deletions
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index d3b9c62e73c7..7c037fa9c5b8 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -1,51 +1,29 @@ /* - * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Copyright 2003 PathScale, Inc. * Licensed under the GPL */ -#include "linux/kernel.h" -#include "linux/sched.h" -#include "linux/interrupt.h" -#include "linux/string.h" +#include "linux/stddef.h" +#include "linux/err.h" +#include "linux/hardirq.h" #include "linux/mm.h" -#include "linux/slab.h" -#include "linux/utsname.h" -#include "linux/fs.h" -#include "linux/utime.h" -#include "linux/smp_lock.h" -#include "linux/module.h" -#include "linux/init.h" -#include "linux/capability.h" -#include "linux/vmalloc.h" -#include "linux/spinlock.h" +#include "linux/personality.h" #include "linux/proc_fs.h" #include "linux/ptrace.h" #include "linux/random.h" -#include "linux/personality.h" -#include "asm/unistd.h" -#include "asm/mman.h" -#include "asm/segment.h" -#include "asm/stat.h" +#include "linux/sched.h" +#include "linux/threads.h" #include "asm/pgtable.h" -#include "asm/processor.h" -#include "asm/tlbflush.h" #include "asm/uaccess.h" -#include "asm/user.h" -#include "kern_util.h" #include "as-layout.h" -#include "kern.h" -#include "signal_kern.h" -#include "init.h" -#include "irq_user.h" -#include "mem_user.h" -#include "tlb.h" -#include "frame_kern.h" -#include "sigcontext.h" +#include "kern_util.h" #include "os.h" #include "skas.h" +#include "tlb.h" -/* This is a per-cpu array. A processor only modifies its entry and it only +/* + * This is a per-cpu array. A processor only modifies its entry and it only * cares about its entry, so it's OK if another processor is modifying its * entry. */ @@ -54,15 +32,15 @@ struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } }; static inline int external_pid(struct task_struct *task) { /* FIXME: Need to look up userspace_pid by cpu */ - return(userspace_pid[0]); + return userspace_pid[0]; } int pid_to_processor_id(int pid) { int i; - for(i = 0; i < ncpus; i++){ - if(cpu_tasks[i].pid == pid) + for(i = 0; i < ncpus; i++) { + if (cpu_tasks[i].pid == pid) return i; } return -1; @@ -118,7 +96,7 @@ void *_switch_to(void *prev, void *next, void *last) current->thread.saved_task = NULL; /* XXX need to check runqueues[cpu].idle */ - if(current->pid == 0) + if (current->pid == 0) switch_timers(0); switch_threads(&from->thread.switch_buf, @@ -126,10 +104,10 @@ void *_switch_to(void *prev, void *next, void *last) arch_switch_to(current->thread.prev_sched, current); - if(current->pid == 0) + if (current->pid == 0) switch_timers(1); - if(current->thread.saved_task) + if (current->thread.saved_task) show_regs(&(current->thread.regs)); next= current->thread.saved_task; prev= current; @@ -141,9 +119,9 @@ void *_switch_to(void *prev, void *next, void *last) void interrupt_end(void) { - if(need_resched()) + if (need_resched()) schedule(); - if(test_tsk_thread_flag(current, TIF_SIGPENDING)) + if (test_tsk_thread_flag(current, TIF_SIGPENDING)) do_signal(); } @@ -158,7 +136,8 @@ void *get_current(void) extern void schedule_tail(struct task_struct *prev); -/* This is called magically, by its address being stuffed in a jmp_buf +/* + * This is called magically, by its address being stuffed in a jmp_buf * and being longjmp-d to. */ void new_thread_handler(void) @@ -166,18 +145,19 @@ void new_thread_handler(void) int (*fn)(void *), n; void *arg; - if(current->thread.prev_sched != NULL) + if (current->thread.prev_sched != NULL) schedule_tail(current->thread.prev_sched); current->thread.prev_sched = NULL; fn = current->thread.request.u.thread.proc; arg = current->thread.request.u.thread.arg; - /* The return value is 1 if the kernel thread execs a process, + /* + * The return value is 1 if the kernel thread execs a process, * 0 if it just exits */ n = run_kernel_thread(fn, arg, ¤t->thread.exec_buf); - if(n == 1){ + if (n == 1) { /* Handle any immediate reschedules or signals */ interrupt_end(); userspace(¤t->thread.regs.regs); @@ -189,14 +169,16 @@ void new_thread_handler(void) void fork_handler(void) { force_flush_all(); - if(current->thread.prev_sched == NULL) + if (current->thread.prev_sched == NULL) panic("blech"); schedule_tail(current->thread.prev_sched); - /* XXX: if interrupt_end() calls schedule, this call to + /* + * XXX: if interrupt_end() calls schedule, this call to * arch_switch_to isn't needed. We could want to apply this to - * improve performance. -bb */ + * improve performance. -bb + */ arch_switch_to(current->thread.prev_sched, current); current->thread.prev_sched = NULL; @@ -216,11 +198,11 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, p->thread = (struct thread_struct) INIT_THREAD; - if(current->thread.forking){ + if (current->thread.forking) { memcpy(&p->thread.regs.regs, ®s->regs, sizeof(p->thread.regs.regs)); REGS_SET_SYSCALL_RETURN(p->thread.regs.regs.regs, 0); - if(sp != 0) + if (sp != 0) REGS_SP(p->thread.regs.regs.regs) = sp; handler = fork_handler; @@ -259,14 +241,14 @@ void initial_thread_cb(void (*proc)(void *), void *arg) void default_idle(void) { - while(1){ + while(1) { /* endless idle loop with no priority at all */ /* * although we are an idle CPU, we do not want to * get into the scheduler unnecessarily. */ - if(need_resched()) + if (need_resched()) schedule(); idle_sleep(10); @@ -288,26 +270,26 @@ void *um_virt_to_phys(struct task_struct *task, unsigned long addr, pte_t *pte; pte_t ptent; - if(task->mm == NULL) + if (task->mm == NULL) return ERR_PTR(-EINVAL); pgd = pgd_offset(task->mm, addr); - if(!pgd_present(*pgd)) + if (!pgd_present(*pgd)) return ERR_PTR(-EINVAL); pud = pud_offset(pgd, addr); - if(!pud_present(*pud)) + if (!pud_present(*pud)) return ERR_PTR(-EINVAL); pmd = pmd_offset(pud, addr); - if(!pmd_present(*pmd)) + if (!pmd_present(*pmd)) return ERR_PTR(-EINVAL); pte = pte_offset_kernel(pmd, addr); ptent = *pte; - if(!pte_present(ptent)) + if (!pte_present(ptent)) return ERR_PTR(-EINVAL); - if(pte_out != NULL) + if (pte_out != NULL) *pte_out = ptent; return (void *) (pte_val(ptent) & PAGE_MASK) + (addr & ~PAGE_MASK); } @@ -380,7 +362,7 @@ int smp_sigio_handler(void) #ifdef CONFIG_SMP int cpu = current_thread->cpu; IPI_handler(cpu); - if(cpu != 0) + if (cpu != 0) return 1; #endif return 0; @@ -408,7 +390,8 @@ int get_using_sysemu(void) static int proc_read_sysemu(char *buf, char **start, off_t offset, int size,int *eof, void *data) { - if (snprintf(buf, size, "%d\n", get_using_sysemu()) < size) /*No overflow*/ + if (snprintf(buf, size, "%d\n", get_using_sysemu()) < size) + /* No overflow */ *eof = 1; return strlen(buf); @@ -423,7 +406,8 @@ static int proc_write_sysemu(struct file *file,const char __user *buf, unsigned if (tmp[0] >= '0' && tmp[0] <= '2') set_using_sysemu(tmp[0] - '0'); - return count; /*We use the first char, but pretend to write everything*/ + /* We use the first char, but pretend to write everything */ + return count; } int __init make_proc_sysemu(void) @@ -453,10 +437,10 @@ int singlestepping(void * t) struct task_struct *task = t ? t : current; if ( ! (task->ptrace & PT_DTRACE) ) - return(0); + return 0; if (task->thread.singlestep_syscall) - return(1); + return 1; return 2; } |