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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-09-22 04:32:29 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-01 06:53:32 +0400 |
| commit | 1f02ab4a237086095bd584f3446da307ac2d02e6 (patch) | |
| tree | e08c0a4cc09f1385d7528a592789aef9e16be44c | |
| parent | 6783eaa2e1253fbcbe2c2f6bb4c843abf1343caf (diff) | |
| download | linux-1f02ab4a237086095bd584f3446da307ac2d02e6.tar.xz | |
um: switch to generic kernel_thread()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/um/include/asm/processor-generic.h | 2 | ||||
| -rw-r--r-- | arch/um/kernel/process.c | 17 | ||||
| -rw-r--r-- | arch/x86/um/Kconfig | 1 |
3 files changed, 4 insertions, 16 deletions
diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h index 33a6a2423bd2..5d9ab0c4f488 100644 --- a/arch/um/include/asm/processor-generic.h +++ b/arch/um/include/asm/processor-generic.h @@ -63,8 +63,6 @@ static inline void release_thread(struct task_struct *task) { } -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - extern unsigned long thread_saved_pc(struct task_struct *t); static inline void mm_copy_segments(struct mm_struct *from_mm, diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index c5f5afa50745..a1b50add48a2 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -69,18 +69,6 @@ unsigned long alloc_stack(int order, int atomic) return page; } -int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - int pid; - - current->thread.request.u.thread.proc = fn; - current->thread.request.u.thread.arg = arg; - pid = do_fork(CLONE_VM | CLONE_UNTRACED | flags, 0, - ¤t->thread.regs, 0, NULL, NULL); - return pid; -} -EXPORT_SYMBOL(kernel_thread); - static inline void set_current(struct task_struct *task) { cpu_tasks[task_thread_info(task)->cpu] = ((struct cpu_task) @@ -177,7 +165,7 @@ void fork_handler(void) } int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long stack_top, struct task_struct * p, + unsigned long arg, struct task_struct * p, struct pt_regs *regs) { void (*handler)(void); @@ -198,7 +186,8 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, arch_copy_thread(¤t->thread.arch, &p->thread.arch); } else { get_safe_registers(p->thread.regs.regs.gp, p->thread.regs.regs.fp); - p->thread.request.u.thread = current->thread.request.u.thread; + p->thread.request.u.thread.proc = (int (*)(void *))sp; + p->thread.request.u.thread.arg = (void *)arg; handler = new_thread_handler; } diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig index 9926e11a772d..da85b6fc8e8e 100644 --- a/arch/x86/um/Kconfig +++ b/arch/x86/um/Kconfig @@ -13,6 +13,7 @@ endmenu config UML_X86 def_bool y select GENERIC_FIND_FIRST_BIT + select GENERIC_KERNEL_THREAD config 64BIT bool "64-bit kernel" if SUBARCH = "x86" |