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authorIngo Molnar <mingo@kernel.org>2015-08-04 03:42:54 -0400
committerIngo Molnar <mingo@kernel.org>2015-08-04 03:48:12 -0400
commitbef033a3c68a0cd31c81973946be768e9dd7ba42 (patch)
treef716e094e5ec99ee369a96734e61ce2f72c1fb6d /arch/sparc
parent3c8e4793556981a7f532599959aa3303968056f0 (diff)
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,
333 childregs = (struct pt_regs *) (new_stack + STACKFRAME_SZ); 333 childregs = (struct pt_regs *) (new_stack + STACKFRAME_SZ);
334 334
335 /* 335 /*
336 * A new process must start with interrupts closed in 2.5, 336 * A new process must start with interrupts disabled, see schedule_tail()
337 * because this is how Mingo's scheduler works (see schedule_tail 337 * and finish_task_switch(). (If we do not do it and if a timer interrupt
338 * and finish_arch_switch). If we do not do it, a timer interrupt hits 338 * hits before we unlock and attempts to take the rq->lock, we deadlock.)
339 * before we unlock, attempts to re-take the rq->lock, and then we die. 339 *
340 * Thus, kpsr|=PSR_PIL. 340 * Thus, kpsr |= PSR_PIL.
341 */ 341 */
342 ti->ksp = (unsigned long) new_stack; 342 ti->ksp = (unsigned long) new_stack;
343 p->thread.kregs = childregs; 343 p->thread.kregs = childregs;