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authorLv Zheng <lv.zheng@intel.com>2017-04-26 11:18:33 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-04-27 01:31:00 +0300
commit069f9bf454a61d6fafa415dc2a8713938196d650 (patch)
tree4f2ef4bb631cdf758fc512d2eca120c729ec453c
parent1f67ef69941e252d5a3558426338a84acce73d89 (diff)
downloadlinux-069f9bf454a61d6fafa415dc2a8713938196d650.tar.xz
ACPICA: Debugger: Add interpreter blocking mark for single-step mode
ACPICA commit 91af5d18cd40b35f9d5568fb95fc403ff12474e5 When the single-step mode is used, evaluation is actually split by the single-step command prompts, so this patch correctly marks the evaluation segment with interpreter lock release/acquire. This in return fixes an issue that in the single-step command prompt, commands requiring to hold the namespace lock (ex. namespace) cannot be executed. ACPICA BZ 1362, fixed by Lv Zheng. Link: https://github.com/acpica/acpica/commit/91af5d18 Link: https://bugs.acpica.org/show_bug.cgi?id=1362 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/acpi/acpica/dbxface.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/dbxface.c b/drivers/acpi/acpica/dbxface.c
index 205b8e0eded5..9b91cea63f46 100644
--- a/drivers/acpi/acpica/dbxface.c
+++ b/drivers/acpi/acpica/dbxface.c
@@ -45,6 +45,7 @@
#include "accommon.h"
#include "amlcode.h"
#include "acdebug.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME("dbxface")
@@ -368,7 +369,9 @@ acpi_db_single_step(struct acpi_walk_state *walk_state,
walk_state->method_breakpoint = 1; /* Must be non-zero! */
}
+ acpi_ex_exit_interpreter();
status = acpi_db_start_command(walk_state, op);
+ acpi_ex_enter_interpreter();
/* User commands complete, continue execution of the interrupted method */