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Commit 84849b3e authored by Al Viro's avatar Al Viro
Browse files

arm: trim _TIF_WORK_MASK, get rid of useless test and branch... 



Acked-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 7f1b5a99

arch/arm/include/asm/thread_info.h

+1 −1
Original line number Diff line number Diff line
@@ -170,7 +170,7 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, 
/*

 * Change these and you break ASM code in entry-common.S

 */

#define _TIF_WORK_MASK		0x000000ff

#define _TIF_WORK_MASK		(_TIF_NEED_RESCHED | _TIF_SIGPENDING | _TIF_NOTIFY_RESUME)



#endif /* __KERNEL__ */

#endif /* __ASM_ARM_THREAD_INFO_H */

arch/arm/kernel/entry-common.S

+3 −2
Original line number Diff line number Diff line
@@ -53,8 +53,9 @@ fast_work_pending: 
work_pending:

	tst	r1, #_TIF_NEED_RESCHED

	bne	work_resched

	tst	r1, #_TIF_SIGPENDING|_TIF_NOTIFY_RESUME

	beq	no_work_pending

	/*

	 * TIF_SIGPENDING or TIF_NOTIFY_RESUME must've been set if we got here

	 */

	mov	r0, sp				@ 'regs'

	mov	r2, why				@ 'syscall'

	tst	r1, #_TIF_SIGPENDING		@ delivering a signal?