Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 427f23cb authored by Tkhai Kirill's avatar Tkhai Kirill Committed by David S. Miller
Browse files

sparc32, copy_thread: Clear TIF_USEDFPU flag of created task instead of current 



FPU state is saved into task_struct of created task. Current task continues
use of the state, so it needs TIF_USEDFPU flag is not cleared.

Created task receives fresh FPU and cleared TIF_USEFPU flag is required for it.

Signed-off-by: default avatarKirill Tkhai <tkhai@yandex.ru>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a0ce3ba0

arch/sparc/kernel/process_32.c

+1 −3
Original line number Diff line number Diff line
@@ -333,9 +333,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, 
		put_psr(get_psr() | PSR_EF);

		fpsave(&p->thread.float_regs[0], &p->thread.fsr,

		       &p->thread.fpqueue[0], &p->thread.fpqdepth);

#ifdef CONFIG_SMP

		clear_thread_flag(TIF_USEDFPU);

#endif

	}



	/*
@@ -413,6 +410,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, 
#ifdef CONFIG_SMP

	/* FPU must be disabled on SMP. */

	childregs->psr &= ~PSR_EF;

	clear_tsk_thread_flag(p, TIF_USEDFPU);

#endif



	/* Set the return value for the child. */