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From: Alex Dowad <alexinbeijing@gmail.com>
To: linux-kernel@vget.kernel.org
Cc: Mark Salter <msalter@redhat.com>,
	Aurelien Jacquiot <a-jacquiot@ti.com>,
	linux-c6x-dev@linux-c6x.org (open list:C6X ARCHITECTURE),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 08/32] c6x: copy_thread(): rename 'ustk_size' argument to 'kthread_arg'
Date: Fri, 13 Mar 2015 20:04:23 +0200	[thread overview]
Message-ID: <1426269888-25600-8-git-send-email-alexinbeijing@gmail.com> (raw)
In-Reply-To: <1426269888-25600-1-git-send-email-alexinbeijing@gmail.com>

'ustk_size' is a misnomer: it is never used for the size of the user stack. It is
only used when forking a new kernel thread, as the argument passed to the kthread's
main function.

Signed-off-by: Alex Dowad <alexinbeijing@gmail.com>
---
 arch/c6x/kernel/process.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 57d2ea8..b519377 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -109,10 +109,10 @@ void start_thread(struct pt_regs *regs, unsigned int pc, unsigned long usp)
 }
 
 /*
- * Copy a new thread context in its stack.
+ * Copy architecture-specific thread state
  */
 int copy_thread(unsigned long clone_flags, unsigned long usp,
-		unsigned long ustk_size,
+		unsigned long kthread_arg,
 		struct task_struct *p)
 {
 	struct pt_regs *childregs;
@@ -125,9 +125,9 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 		childregs->sp = (unsigned long)(childregs + 1);
 		p->thread.pc = (unsigned long) ret_from_kernel_thread;
 		childregs->a0 = usp;		/* function */
-		childregs->a1 = ustk_size;	/* argument */
+		childregs->a1 = kthread_arg;
 	} else {
-		/* Otherwise use the given stack */
+		/* user thread: use the given stack */
 		*childregs = *current_pt_regs();
 		if (usp)
 			childregs->sp = usp;
-- 
2.0.0.GIT


  parent reply	other threads:[~2015-03-13 18:07 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-13 18:04 [PATCH 01/32] do_fork(): Rename 'stack_size' argument to reflect actual use Alex Dowad
2015-03-13 18:04 ` [PATCH 02/32] alpha: copy_thread(): rename 'arg' argument to 'kthread_arg' Alex Dowad
2015-03-13 18:04 ` [PATCH 03/32] arc: " Alex Dowad
2015-03-25 11:47   ` Vineet Gupta
2015-03-25 12:34     ` Alex Dowad
2015-03-25 12:37       ` Vineet Gupta
2015-03-13 18:04 ` [PATCH 04/32] arm: copy_thread(): rename 'stk_sz' " Alex Dowad
2015-03-13 18:04 ` [PATCH 05/32] arm64: " Alex Dowad
2015-03-13 18:04 ` [PATCH 06/32] avr32: copy_thread(): rename 'arg' " Alex Dowad
2015-03-16  7:03   ` Hans-Christian Egtvedt
2015-03-16  8:18     ` [PATCHv2 " Alex Dowad
2015-03-16  9:52       ` Hans-Christian Egtvedt
2015-03-13 18:04 ` [PATCH 07/32] blackfin: copy_thread(): rename 'topstk' " Alex Dowad
2015-03-13 18:04 ` Alex Dowad [this message]
2015-03-13 18:04 ` [PATCH 09/32] cris/arch-v10: copy_thread(): rename 'arg' " Alex Dowad
2015-03-25 11:20   ` Jesper Nilsson
2015-03-13 18:04 ` [PATCH 10/32] cris/arch-v32: " Alex Dowad
2015-03-25 11:20   ` Jesper Nilsson
2015-03-13 18:18 ` [PATCH 01/32] do_fork(): Rename 'stack_size' argument to reflect actual use Aaron Tomlin
2015-03-13 23:04 ` josh
2015-03-13 23:21   ` David Rientjes
2015-03-14 17:14     ` Alex Dowad
2015-03-14 16:19   ` Alex Dowad
2015-03-14 17:30     ` Geert Uytterhoeven

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