Merge tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

Pull kernel_clone() updates from Christian Brauner:
 "During the v5.9 merge window we reworked the process creation
  codepaths across multiple architectures. After this work we were only
  left with the _do_fork() helper based on the struct kernel_clone_args
  calling convention. As was pointed out _do_fork() isn't valid
  kernelese especially for a helper that isn't just static.

  This series removes the _do_fork() helper and introduces the new
  kernel_clone() helper. The process creation cleanup didn't change the
  name to something more reasonable mainly because _do_fork() was used
  in quite a few places. So sending this as a separate series seemed the
  better strategy.

  I originally intended to send this early in the v5.9 development cycle
  after the merge window had closed but given that this was touching
  quite a few places I decided to defer this until the v5.10 merge
  window"

* tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  sched: remove _do_fork()
  tracing: switch to kernel_clone()
  kgdbts: switch to kernel_clone()
  kprobes: switch to kernel_clone()
  x86: switch to kernel_clone()
  sparc: switch to kernel_clone()
  nios2: switch to kernel_clone()
  m68k: switch to kernel_clone()
  ia64: switch to kernel_clone()
  h8300: switch to kernel_clone()
  fork: introduce kernel_clone()

6 files changed, 13 insertions, 13 deletions

diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index 83ce3caf7313..aea0a40b77a9 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -172,5 +172,5 @@ asmlinkage int sys_clone(unsigned long __user *args)
 	kargs.exit_signal	= (lower_32_bits(clone_flags) & CSIGNAL);
 	kargs.stack		= newsp;
 
-	return _do_fork(&kargs);
+	return kernel_clone(&kargs);
 }
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index e74e10f19fff..f25f2f723196 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -271,7 +271,7 @@ ia64_load_extra (struct task_struct *task)
  *
  *	<clone syscall>	        <some kernel call frames>
  *	sys_clone		   :
- *	_do_fork		_do_fork
+ *	kernel_clone		kernel_clone
  *	copy_thread		copy_thread
  *
  * This means that the stack layout is as follows:
@@ -411,7 +411,7 @@ asmlinkage long ia64_clone(unsigned long clone_flags, unsigned long stack_start,
 		.tls		= tls,
 	};
 
-	return _do_fork(&args);
+	return kernel_clone(&args);
 }
 
 static void
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 6492a2c54dbc..08359a6e058f 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -107,10 +107,10 @@ void flush_thread(void)
  * on top of pt_regs, which means that sys_clone() arguments would be
  * buried.  We could, of course, copy them, but it's too costly for no
  * good reason - generic clone() would have to copy them *again* for
- * _do_fork() anyway.  So in this case it's actually better to pass pt_regs *
- * and extract arguments for _do_fork() from there.  Eventually we might
- * go for calling _do_fork() directly from the wrapper, but only after we
- * are finished with _do_fork() prototype conversion.
+ * kernel_clone() anyway.  So in this case it's actually better to pass pt_regs *
+ * and extract arguments for kernel_clone() from there.  Eventually we might
+ * go for calling kernel_clone() directly from the wrapper, but only after we
+ * are finished with kernel_clone() prototype conversion.
  */
 asmlinkage int m68k_clone(struct pt_regs *regs)
 {
@@ -125,7 +125,7 @@ asmlinkage int m68k_clone(struct pt_regs *regs)
 		.tls		= regs->d5,
 	};
 
-	return _do_fork(&args);
+	return kernel_clone(&args);
 }
 
 /*
diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c
index 88a4ec03edab..4ffe857e6ada 100644
--- a/arch/nios2/kernel/process.c
+++ b/arch/nios2/kernel/process.c
@@ -266,5 +266,5 @@ asmlinkage int nios2_clone(unsigned long clone_flags, unsigned long newsp,
 		.tls		= tls,
 	};
 
-	return _do_fork(&args);
+	return kernel_clone(&args);
 }
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index 5234b5ccc0b9..0442ab00518d 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -25,7 +25,7 @@ asmlinkage long sparc_fork(struct pt_regs *regs)
 		.stack		= regs->u_regs[UREG_FP],
 	};
 
-	ret = _do_fork(&args);
+	ret = kernel_clone(&args);
 
 	/* If we get an error and potentially restart the system
 	 * call, we're screwed because copy_thread() clobbered
@@ -50,7 +50,7 @@ asmlinkage long sparc_vfork(struct pt_regs *regs)
 		.stack		= regs->u_regs[UREG_FP],
 	};
 
-	ret = _do_fork(&args);
+	ret = kernel_clone(&args);
 
 	/* If we get an error and potentially restart the system
 	 * call, we're screwed because copy_thread() clobbered
@@ -96,7 +96,7 @@ asmlinkage long sparc_clone(struct pt_regs *regs)
 	else
 		args.stack = regs->u_regs[UREG_FP];
 
-	ret = _do_fork(&args);
+	ret = kernel_clone(&args);
 
 	/* If we get an error and potentially restart the system
 	 * call, we're screwed because copy_thread() clobbered
diff --git a/arch/x86/kernel/sys_ia32.c b/arch/x86/kernel/sys_ia32.c
index 720cde885042..6cf65397d225 100644
--- a/arch/x86/kernel/sys_ia32.c
+++ b/arch/x86/kernel/sys_ia32.c
@@ -251,6 +251,6 @@ COMPAT_SYSCALL_DEFINE5(ia32_clone, unsigned long, clone_flags,
 		.tls		= tls_val,
 	};
 
-	return _do_fork(&args);
+	return kernel_clone(&args);
 }
 #endif /* CONFIG_IA32_EMULATION */