X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fx86_64%2Flib%2Fthunk.S;h=55e586d352d3c444d35fe7399726666ba94b9adf;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=acc1e2ca7ed7fe7f22949bb692e3d941b18c73bd;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/arch/x86_64/lib/thunk.S b/arch/x86_64/lib/thunk.S index acc1e2ca7..55e586d35 100644 --- a/arch/x86_64/lib/thunk.S +++ b/arch/x86_64/lib/thunk.S @@ -1,12 +1,10 @@ - /* - * Save registers before calling assembly functions. This avoids - * disturbance of register allocation in some inline assembly constructs. - * Copyright 2001,2002 by Andi Kleen, SuSE Labs. - * Subject to the GNU public license, v.2. No warranty of any kind. - * $Id: thunk.S,v 1.2 2002/03/13 20:06:58 ak Exp $ - */ +/* + * Save registers before calling assembly functions. This avoids + * disturbance of register allocation in some inline assembly constructs. + * Copyright 2001,2002 by Andi Kleen, SuSE Labs. + * Subject to the GNU public license, v.2. No warranty of any kind. + */ - #include #include #include #include @@ -42,12 +40,16 @@ thunk rwsem_wake_thunk,rwsem_wake thunk rwsem_downgrade_thunk,rwsem_downgrade_wake #endif - thunk do_softirq_thunk,do_softirq thunk __down_failed,__down thunk_retrax __down_failed_interruptible,__down_interruptible thunk_retrax __down_failed_trylock,__down_trylock thunk __up_wakeup,__up + +#ifdef CONFIG_TRACE_IRQFLAGS + thunk trace_hardirqs_on_thunk,trace_hardirqs_on + thunk trace_hardirqs_off_thunk,trace_hardirqs_off +#endif /* SAVE_ARGS below is used only for the .cfi directives it contains. */ CFI_STARTPROC @@ -63,33 +65,3 @@ restore_norax: RESTORE_ARGS 1 ret CFI_ENDPROC - -#ifdef CONFIG_SMP -/* Support for read/write spinlocks. */ - .text -/* rax: pointer to rwlock_t */ -ENTRY(__write_lock_failed) - lock - addl $RW_LOCK_BIAS,(%rax) -1: rep - nop - cmpl $RW_LOCK_BIAS,(%rax) - jne 1b - lock - subl $RW_LOCK_BIAS,(%rax) - jnz __write_lock_failed - ret - -/* rax: pointer to rwlock_t */ -ENTRY(__read_lock_failed) - lock - incl (%rax) -1: rep - nop - cmpl $1,(%rax) - js 1b - lock - decl (%rax) - js __read_lock_failed - ret -#endif