Date: Sat, 12 May 2007 11:22:02 GMT From: Roman Divacky <rdivacky@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 119723 for review Message-ID: <200705121122.l4CBM2Lh008614@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=119723 Change 119723 by rdivacky@rdivacky_witten on 2007/05/12 11:21:38 Copy out oldval before the OPERATION loop and include the copying in of oldval to the (possible) loop. Affected files ... .. //depot/projects/soc2007/rdivacky/linux_futex/sys/amd64/linux32/linux32_support.s#5 edit Differences ... ==== //depot/projects/soc2007/rdivacky/linux_futex/sys/amd64/linux32/linux32_support.s#5 (text+ko) ==== @@ -76,15 +76,15 @@ movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault - movl (%rsi),%eax -1: movl %eax,%ecx +1: movl (%rsi),%eax + movl %eax,(%rdx) + movl %eax,%ecx orl %edi,%ecx #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) jnz 1b - movl %edi,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret @@ -95,15 +95,15 @@ movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault - movl (%rsi),%eax -1: movl %eax,%ecx +1: movl (%rsi),%eax + movl %eax,(%rdx) + movl %eax,%ecx andl %edi,%ecx #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) jnz 1b - movl %edi,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret @@ -114,15 +114,15 @@ movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault - movl (%rsi),%eax -1: movl %eax,%ecx +1: movl (%rsi),%eax + movl %eax,(%rdx) + movl %eax,%ecx xorl %edi,%ecx #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) jnz 1b - movl %edi,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret
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