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authorJiri Slaby <jslaby@suse.cz>2016-05-21 03:00:11 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-21 03:58:30 +0300
commit2ec656eb4054ce55e6d453b8614ef9669e84c542 (patch)
treeddc16af6854567fb2205c677178e71e897ce3613 /arch/mn10300
parent1b3044e39a89cb1d4d5313da477e8dfea2b5232d (diff)
downloadlinux-2ec656eb4054ce55e6d453b8614ef9669e84c542.tar.xz
mn10300: let exit_fpu accept a task
We need to call exit_thread from copy_process in a fail path. Since exit_thread on mn10300 calls exit_thread_runtime_instr, make it accept task_struct as a parameter now. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: "David S. Miller" <davem@davemloft.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Chris Zankel <chris@zankel.net> Cc: David Howells <dhowells@redhat.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Jonas Bonn <jonas@southpole.se> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Mikael Starvik <starvik@axis.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Rich Felker <dalias@libc.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@arm.linux.org.uk> Cc: Steven Miao <realmz6@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mn10300')
-rw-r--r--arch/mn10300/include/asm/fpu.h6
-rw-r--r--arch/mn10300/kernel/process.c2
2 files changed, 3 insertions, 5 deletions
diff --git a/arch/mn10300/include/asm/fpu.h b/arch/mn10300/include/asm/fpu.h
index 738ff72659d5..a47e995d45f3 100644
--- a/arch/mn10300/include/asm/fpu.h
+++ b/arch/mn10300/include/asm/fpu.h
@@ -76,11 +76,9 @@ static inline void unlazy_fpu(struct task_struct *tsk)
preempt_enable();
}
-static inline void exit_fpu(void)
+static inline void exit_fpu(struct task_struct *tsk)
{
#ifdef CONFIG_LAZY_SAVE_FPU
- struct task_struct *tsk = current;
-
preempt_disable();
if (fpu_state_owner == tsk)
fpu_state_owner = NULL;
@@ -123,7 +121,7 @@ static inline void fpu_init_state(void) {}
static inline void fpu_save(struct fpu_state_struct *s) {}
static inline void fpu_kill_state(struct task_struct *tsk) {}
static inline void unlazy_fpu(struct task_struct *tsk) {}
-static inline void exit_fpu(void) {}
+static inline void exit_fpu(struct task_struct *tsk) {}
static inline void flush_fpu(void) {}
static inline int fpu_setup_sigcontext(struct fpucontext *buf) { return 0; }
static inline int fpu_restore_sigcontext(struct fpucontext *buf) { return 0; }
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 3707da583d05..74a96ccf7451 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -105,7 +105,7 @@ void show_regs(struct pt_regs *regs)
*/
void exit_thread(void)
{
- exit_fpu();
+ exit_fpu(current);
}
void flush_thread(void)