]> git.ipfire.org Git - thirdparty/kernel/stable-queue.git/commitdiff
deleted: queue-4.6/acpica-namespace-fix-deadlock-triggered-by-mlc-support-in-dynam...
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 25 Jul 2016 04:12:21 +0000 (21:12 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 25 Jul 2016 04:12:21 +0000 (21:12 -0700)
queue-4.6/acpica-namespace-fix-deadlock-triggered-by-mlc-support-in-dynamic-table-loading.patch [deleted file]
queue-4.6/series

diff --git a/queue-4.6/acpica-namespace-fix-deadlock-triggered-by-mlc-support-in-dynamic-table-loading.patch b/queue-4.6/acpica-namespace-fix-deadlock-triggered-by-mlc-support-in-dynamic-table-loading.patch
deleted file mode 100644 (file)
index 7d56730..0000000
+++ /dev/null
@@ -1,95 +0,0 @@
-From 2f38b1b16d9280689e5cfa47a4c50956bf437f0d Mon Sep 17 00:00:00 2001
-From: Lv Zheng <lv.zheng@intel.com>
-Date: Tue, 21 Jun 2016 12:34:15 +0800
-Subject: ACPICA: Namespace: Fix deadlock triggered by MLC support in dynamic table loading
-
-From: Lv Zheng <lv.zheng@intel.com>
-
-commit 2f38b1b16d9280689e5cfa47a4c50956bf437f0d upstream.
-
-The new module-level code (MLC) approach invokes MLC on the per-table
-basis, but the dynamic loading support of this is incorrect because
-of the lock order:
-
- acpi_ns_evaluate
-   acpi_ex_enter_intperter
-     acpi_ns_load_table (triggered by Load opcode)
-       acpi_ns_exec_module_code_list
-         acpi_ex_enter_intperter
-
-The regression is introduced by the following commit:
-
-  Commit: 2785ce8d0da1cac9d8f78615e116cf929e9a9123
-  ACPICA Commit: 071eff738c59eda1792ac24b3b688b61691d7e7c
-  Subject: ACPICA: Add per-table execution of module-level code
-
-This patch fixes this regression by unlocking the interpreter lock
-before invoking MLC.  However, the unlocking is done to the
-acpi_ns_load_table(), in which the interpreter lock should be locked
-by acpi_ns_parse_table() but it wasn't.
-
-Fixes: 2785ce8d0da1 (ACPICA: Add per-table execution of module-level code)
-Reported-by: Mika Westerberg <mika.westerberg@linux.intel.com>
-Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
-Signed-off-by: Lv Zheng <lv.zheng@intel.com>
-[ rjw : Subject ]
-Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/acpi/acpica/exconfig.c |    2 ++
- drivers/acpi/acpica/nsparse.c  |    9 +++++++--
- 2 files changed, 9 insertions(+), 2 deletions(-)
-
---- a/drivers/acpi/acpica/exconfig.c
-+++ b/drivers/acpi/acpica/exconfig.c
-@@ -108,7 +108,9 @@ acpi_ex_add_table(u32 table_index,
-       /* Add the table to the namespace */
-+      acpi_ex_exit_interpreter();
-       status = acpi_ns_load_table(table_index, parent_node);
-+      acpi_ex_enter_interpreter();
-       if (ACPI_FAILURE(status)) {
-               acpi_ut_remove_reference(obj_desc);
-               *ddb_handle = NULL;
---- a/drivers/acpi/acpica/nsparse.c
-+++ b/drivers/acpi/acpica/nsparse.c
-@@ -47,6 +47,7 @@
- #include "acparser.h"
- #include "acdispat.h"
- #include "actables.h"
-+#include "acinterp.h"
- #define _COMPONENT          ACPI_NAMESPACE
- ACPI_MODULE_NAME("nsparse")
-@@ -170,6 +171,8 @@ acpi_ns_parse_table(u32 table_index, str
-       ACPI_FUNCTION_TRACE(ns_parse_table);
-+      acpi_ex_enter_interpreter();
-+
-       /*
-        * AML Parse, pass 1
-        *
-@@ -185,7 +188,7 @@ acpi_ns_parse_table(u32 table_index, str
-       status = acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS1,
-                                           table_index, start_node);
-       if (ACPI_FAILURE(status)) {
--              return_ACPI_STATUS(status);
-+              goto error_exit;
-       }
-       /*
-@@ -201,8 +204,10 @@ acpi_ns_parse_table(u32 table_index, str
-       status = acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS2,
-                                           table_index, start_node);
-       if (ACPI_FAILURE(status)) {
--              return_ACPI_STATUS(status);
-+              goto error_exit;
-       }
-+error_exit:
-+      acpi_ex_exit_interpreter();
-       return_ACPI_STATUS(status);
- }
index 2fae61c4f71ca3897920a1a6809a2ee646f0f27a..2985d4890dbe7dc0c536d5d7704f99f529cd3b46 100644 (file)
@@ -193,7 +193,6 @@ revert-s390-kdump-clear-subchannel-id-to-signal-non-ccw-scsi-ipl.patch
 fix-reconnect-to-not-defer-smb3-session-reconnect-long-after-socket-reconnect.patch
 cifs-dynamic-allocation-of-ntlmssp-blob.patch
 file-names-with-trailing-period-or-space-need-special-case-conversion.patch
-acpica-namespace-fix-deadlock-triggered-by-mlc-support-in-dynamic-table-loading.patch
 xen-acpi-allow-xen-acpi-processor-driver-to-load-on-xen-4.7.patch
 tmpfs-don-t-undo-fallocate-past-its-last-page.patch
 tmpfs-fix-regression-hang-in-fallocate-undo.patch