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Message-Id: <1267464619-6784-3-git-send-email-luca@luca-barbieri.com> Date: Mon, 1 Mar 2010 18:30:19 +0100 From: Luca Barbieri <luca@...a-barbieri.com> To: hpa@...or.com Cc: mingo@...e.hu, a.p.zijlstra@...llo.nl, paulus@...ba.org, linux-kernel@...r.kernel.org, Luca Barbieri <luca@...a-barbieri.com> Subject: [PATCH 2/2] x86-32: fix atomic64_inc_not_zero return value convention Buggy like atomic64_add_unless Signed-off-by: Luca Barbieri <luca@...a-barbieri.com> --- arch/x86/lib/atomic64_386_32.S | 3 +-- arch/x86/lib/atomic64_cx8_32.S | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S index a2f847c..4a5979a 100644 --- a/arch/x86/lib/atomic64_386_32.S +++ b/arch/x86/lib/atomic64_386_32.S @@ -153,13 +153,12 @@ BEGIN inc_not_zero %esi adcl $0, %edx movl %eax, ($v) movl %edx, 4($v) - xorl %eax, %eax + movl $1, %eax 2: RETURN 3: testl %edx, %edx jne 1b - movl $1, %eax jmp 2b END_ diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S index d0e37b1..71e080d 100644 --- a/arch/x86/lib/atomic64_cx8_32.S +++ b/arch/x86/lib/atomic64_cx8_32.S @@ -212,14 +212,13 @@ ENTRY(atomic64_inc_not_zero_cx8) cmpxchg8b (%esi) jne 1b - xorl %eax, %eax + movl $1, %eax 3: RESTORE ebx ret 4: testl %edx, %edx jne 2b - movl $1, %eax jmp 3b CFI_ENDPROC ENDPROC(atomic64_inc_not_zero_cx8) -- 1.6.6.1.476.g01ddb -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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