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authorIngo Molnar <mingo@kernel.org>2015-08-04 09:42:54 +0200
committerIngo Molnar <mingo@kernel.org>2015-08-04 09:48:12 +0200
commitbef033a3c68a0cd31c81973946be768e9dd7ba42 (patch)
treef716e094e5ec99ee369a96734e61ce2f72c1fb6d /arch/sparc
parent3c8e4793556981a7f532599959aa3303968056f0 (diff)
downloadlinux-bef033a3c68a0cd31c81973946be768e9dd7ba42.tar.gz
sched, sparc32: Update scheduler comments in copy_thread()
There's no finish_arch_switch() anymore in the latest scheduler tree.
Also update some other details.

Cc: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/process_32.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 50e7b626afe8..c5113c7ce2fd 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -333,11 +333,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 	childregs = (struct pt_regs *) (new_stack + STACKFRAME_SZ);
 
 	/*
-	 * A new process must start with interrupts closed in 2.5,
-	 * because this is how Mingo's scheduler works (see schedule_tail
-	 * and finish_arch_switch). If we do not do it, a timer interrupt hits
-	 * before we unlock, attempts to re-take the rq->lock, and then we die.
-	 * Thus, kpsr|=PSR_PIL.
+	 * A new process must start with interrupts disabled, see schedule_tail()
+	 * and finish_task_switch(). (If we do not do it and if a timer interrupt
+	 * hits before we unlock and attempts to take the rq->lock, we deadlock.)
+	 *
+	 * Thus, kpsr |= PSR_PIL.
 	 */
 	ti->ksp = (unsigned long) new_stack;
 	p->thread.kregs = childregs;