From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764105AbYJKGx4 (ORCPT ); Sat, 11 Oct 2008 02:53:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755800AbYJKGja (ORCPT ); Sat, 11 Oct 2008 02:39:30 -0400 Received: from vms173005pub.verizon.net ([206.46.173.5]:50806 "EHLO vms173005pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753410AbYJKGhH (ORCPT ); Sat, 11 Oct 2008 02:37:07 -0400 Date: Sat, 11 Oct 2008 02:36:04 -0400 From: Len Brown Subject: [PATCH 44/85] ACPICA: add preemption point after each opcode parse In-reply-to: <1223707005-26864-1-git-send-email-lenb@kernel.org> In-reply-to: <1d80ebdb81444701024ad9b9f026516561496a43.1223706853.git.len.brown@intel.com> To: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Alexey Starikovskiy , Len Brown Message-id: Organization: Intel Open Source Technology Center X-Mailer: git-send-email 1.6.0.2.307.gc427 References: <1223707005-26864-1-git-send-email-lenb@kernel.org> References: <1d80ebdb81444701024ad9b9f026516561496a43.1223706853.git.len.brown@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alexey Starikovskiy Reference: http://marc.info/?l=linux-acpi&m=122236382701062&w=2 Signed-off-by: Alexey Starikovskiy Tested-by: Sitsofe Wheeler Signed-off-by: Len Brown --- drivers/acpi/parser/psloop.c | 2 ++ include/acpi/acmacros.h | 5 +++++ include/acpi/platform/aclinux.h | 6 ++++++ 3 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c index c06238e..4647039 100644 --- a/drivers/acpi/parser/psloop.c +++ b/drivers/acpi/parser/psloop.c @@ -719,6 +719,8 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state, *op = NULL; } + ACPI_PREEMPTION_POINT(); + return_ACPI_STATUS(AE_OK); } diff --git a/include/acpi/acmacros.h b/include/acpi/acmacros.h index 57ab9e9..b402685 100644 --- a/include/acpi/acmacros.h +++ b/include/acpi/acmacros.h @@ -703,4 +703,9 @@ struct acpi_integer_overlay { #endif /* ACPI_DBG_TRACK_ALLOCATIONS */ +/* Preemption point */ +#ifndef ACPI_PREEMPTION_POINT +#define ACPI_PREEMPTION_POINT() /* no preemption */ +#endif + #endif /* ACMACROS_H */ diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index 9af4645..029c8c0 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -53,6 +53,7 @@ #include #include #include +#include #include #include #include @@ -137,4 +138,9 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache) #define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a) #define ACPI_FREE(a) kfree(a) +/* + * We need to show where it is safe to preempt execution of ACPICA + */ +#define ACPI_PREEMPTION_POINT() cond_resched() + #endif /* __ACLINUX_H__ */ -- 1.5.5.1